Process systems Liquid ring vacuum pumps Single stage pumps 8 Alpha series single stage liquid ring vacuum pumps 9 AL series single stage liquid ring vacuum pumps 97 Two stage pumps 00 SHR series liquid ring vacuum pumps 5 Steam ejector vacuum systems Deaeration equipment 8 77 Air blowers and compressors BOC Edwards has purchased the vacuum and pressure interests of The Smiths Group. The businesses acquired, were part of Smith's Sealing Solutions Division, and are comprised of Stokes Vacuum, Hick Hargreaves, Hibon and Wilhelm Klein (WKE). This section reflects the Stokes Vacuum product lines now sold by BOC Edwards. shop online: www.bocedwards.com The dimension drawings in this section display both metric and imperial measurements. Imperial measurements are shown in brackets.
LIQUID RING VACUUM PUMPS How it works 8 78 Liquid ring vacuum pumps continue to provide the optimum solution for many rough vacuum applications in the chemical and allied process industries. The general reliability, low maintenance requirements, low vibration and noise levels coupled with the unique capabilities when handling wet gases all contribute to the popularity of the pump. Operating range Liquid ring pumps are suitable for continuous operation on vacuum applications at any suction pressure down to 0 mbar A. Standard performance data is based upon 5 C water as the seal liquid, lower pressures may be possible with alternative sealing liquid. A wide range of capacities are offered from two basic pump configurations, single and two stages. The single stage range is capable of operation at 0 mbar A where required but is most suited to applications with continuous operation at inlet pressures from atmospheric down to 00 mbar A. The smallest pump in the range is a 5 m h - close coupled model whilst the largest is 000 m h -. The two-stage range is most effective on applications with continuous operation below 00 mbar A and has models from 00 up to 5000 m h -. Detailed performance data is shown in the following pages. (m /hr) Dry Air 500 00 00 00 Stage Stage 0 0 0 00 Suction Pressure (mbar A) Comparison of Single and two stage performance The standard construction material is cast iron with a spheroidal graphite impeller. However one of the main features of the liquid ring pump is the availability of various alternative materials of construction the main options are stainless steel, aluminum bronze, and duplex stainless steels. Some pump sizes which are particularly suited to the pharmaceutical industry are also available in hastelloy. For details on material availability please contact your local sales office. Suction 5 Sealing ring Discharge Direction of rotation Discharge port 7 Suction port 4 Casting 8 impeller The impeller is mounted eccentrically to the axis of the pump casing, the liquid ring circulates concentrically within the axis of the casing. Process gases are drawn through the inlet port into the impeller cells where the gas is compressed and discharged through the discharge port. The seal liquid which forms the liquid ring is supplied at a pressure equal to the discharge pressure of the pump, which allows the pump to automatically make up the amount of liquid which is discharged through the discharge port, therefore removing the heat of compression from the pump. APPLICATIONS Some of the more common processes which utilize liquid ring technology are listed below. Distillation Filtration Evaporation Drying Stripping Solvent recovery Deaeration These processes are used in a wide range of industries and applications, these include: Chemical processing Food processing and packaging Pharmaceutical production Oil exploration and refining Glass Industry Tobacco conditioning Packaging Electronics Industry Automobile components Power generation Waste collection Building materials Soil remediation For North American orders shop online: www.bocedwards.com or call: -0-848-90 7 5 4
Systems Liquid ring pumps are offered in a number of standard configurations, with a selection of seal liquid systems to suit the particular application and environment. Once- through This is the most basic configuration available, it comprises of a pump complete with electric motor and drive and a discharge separator. The seal liquid is supplied to the pump and as the name suggests it goes once through and is then discharged to waste. These days this arrangement is rarely used as environmental considerations ensure that the discharge of waste liquid is kept to a minimum. Partial recirculation Again the name is self explanatory with part of the seal liquid being re-circulated, in order to remove sufficient heat from the liquid that is to be recirculated fresh cooler liquid must be added to it. This is achieved by restricting the amount of fresh liquid supplied to the pump to approximately 50% of the total required and allowing the pump to pull the balance of liquid required from the discharge separator, the excess liquid that is not re-circulated goes to waste via the discharge separator overflow. Recovac system NEW Total recirculation Total recirculation is used where it is desirable to minimize waste liquid from the pump. All of the liquid is re-circulated back into the pump via a heat exchanger, which removes the heat of compression and any latent heat of condensation from the seal liquid. The seal liquid can then be reused by the pump minimizing the effluent from the pump system. The heat exchanger device may be shell and tube, plate type or even a central cooling system. The system is of particular interest when the pump is operating on a solvent removal or drying process where process vapors are condensed within the pump, often the pump seal liquid can be the same as the condensed process vapors. Complex systems More complex systems include special recirculation systems such as the Recovac package (see later) or combinations of liquid ring pumps with roots type mechanical boosters or air, gas or steam ejectors. These hybrid systems can extend the liquid ring pump based performance envelope significantly. Performance curve of booster group The Recovac System adds a highly efficient closed circuit heat exchanger system to the inherent chemical process pumping benefits of the liquid ring vacuum pump. The result is a highly effective vacuum pump package with in built emission cleaning/solvent recovery capability. By combining the wide range of liquid ring pumps, ejectors and mechanical boosters capacities up to 0, 000 m h - can be achieved with suction pressure down to 0.0 mbar A. To make the most of the Recovac system a seal liquid which is compatible with the process should be selected, often this will be the same solvent that is being produced from the wet vacuum process. This enables condensation of process vapors in the liquid ring itself with further recovery being achieved in the falling fileat exchanger. Additional cooling can be provided for further reduction in the discharge temperature. 79 PROCESS SYSTEMS 000 750 500 50 - ( ) 000 750 500 50 000 4 750 500 50 0. 0. 0.5 5 0 0 50 00 00 500 000 Suction Pressure (mbar) MB54 / SHR 750 G ejector MB5 / SHR 750 4 SHR 750 For North American orders shop online: www.bocedwards.com or call: -0-848-90
. K F E D 7 5 F E 'A' 4 G J H 'C' 'B' Liquid ring pump D Suction connection Non-return valve E Primary cooling in/outlet connections Ejector (optional) F Secondary cooling in/outlet connections 4 Drive motor G Overflow connection 5 Ring liquid heat exchanger H Drain connection Ring liquid storage tank J Make up connection 7 Exhaust gas heat exchanger (optional) K Vent connection UNIT SIZE MOTOR SIZE SUCTION VOLUME A B C D E F G H J K TANK CAPACITY () (m h - ) (mm) (mm) (mm) (DN) (DN) (DN) (DN) (DN) (DN) (DN) (liters) JSF.0 55 70 450 5 5 55 JSF 4.0 95 7 490 8 5 5 55 JSF 5.5 0 00 000 5 85 JSF 4 7.5 000 00 00 50 5 85 JSF 5.0 55 00 500 0 50 5 50 90 JSF.0 50 50 00 70 5 5 50 90 JSF 7 8.5 700 50 50 50 0 50 5 50 JSF 8.0 5 0 50 50 50 0 50 5 50 JSF 9 7.0 75 8 5 00 55 JSF 0 45.0 5 0 00 50 00 55 For North American orders shop online: www.bocedwards.com or call: -0-848-90
Standard recovac packages NEW 4 7 8 9 5 0 Optional exhaust gas condenser/absorber filter 8 Gas inlet Coolant in 9 Optional ejector complete with non-return valve Coolant out 0 Liquid collection receiver 4 Gas outlet Make-up connection 5 Ring liquid cooler Recycle to process Liquid ring vacuum pump Drain 7 Motive air 8 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRM5 SINGLE STAGE PUMP 5 0 0 00 00 00 70 Torr 0 8-8 4 0 4 0 8 ft min - 8 4 4 0 0 0 00 LRM5 0 0 0 mbar 8 to Curved blade impeller and variable discharge port for optimum performance Variable pitch dynamically balanced impeller for low noise and vibration level DIN 490 mechanical seal Nominal capacity 5 m h - 850 rpm 0.75 Service water flow 0. m h - 00 000 000 0 00 0000 0 Hz 50 Hz..0 0.9 0.8 0.7 0. 5 0 0 00 000 000 0 00 0000 0 Hz 50 Hz 00 000 Pa 00 00 00 70 Torr LRM5 0.5 0.7 0 0 00 0 0 mbar 00 000.4....0 0.9 0.8 Pa Performance details 0 Hz Nominal capacity m h - 450 rpm. Service water flow 0. m h - 0 (.0) (.5) 9 (5.59) 70 (.7) Port plate Brass CF8M CF8M Body Nitrided cast iron CF8M Nitrided cast iron Shaft Motor Motor Motor Seal Carbon / ceramic / viton Carbon / ceramic / viton Carbon / ceramic / viton 59 (.) 00 (.94) " BSP 4 x Ø8 (0.) 5 (4.9) 5 (.0) LRM5 model is available with the following motor options. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 LRL5 is a pedestal version of this pump suitable for direct mounting with C face motors, it can be supplied bareshaft or with special motors. This pump can also be supplied as a complete package system, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRM50 SINGLE STAGE PUMP 5 0 0 00 00 00 70 Torr 0 5 55 50 0 - h m 45 5 0 5 0 5 5 0 5 0 - min ft 0 5 0 0 0 00 LRM50 5 0 0 0 mbar to Curved blade impeller and variable discharge port for optimum performance Variable pitch dynamically balanced impeller for low noise and vibration level DIN 490 mechanical seal Nominal capacity 45 m h - 850 rpm.5 Service water flow 0.5 m h - Performance details 0 Hz Nominal capacity 55 m h - 450 rpm. Service water flow 0.5 m h - 7 (.8) 90 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz.5.0.5.0 0.5 5 0 0 0 0 00 00 000 000 0 00 0000 0 Hz 50 Hz (.54) 78.5 (7.0) 45 (7.) 00 00 00 70 Torr A 00 4 x Ø8 (0.) LRM50 0 0 mbar 000 75.0.5.0.5.0 (.95) Pa (5.5) 8 PROCESS SYSTEMS Port plate Nitrided cast iron CF8M Nitrided cast iron Body Nitrided cast iron CF8M Nitrided cast iron Shaft Motor Motor Motor Seal Carbon / ceramic / viton Carbon / ceramic / viton Carbon / ceramic / viton A 50 Hz 00 (.94) 0 Hz 5 (4.9) " BSP 70 (.9) LRM50 model is available with the following motor options. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 LRL50 is a pedestal version of this pump suitable for direct mounting with C face motors, it can be supplied bareshaft or with special motors. This pump can also be supplied as a complete package system, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRM90 SINGLE STAGE PUMP 5 0 0 00 00 00 70 Torr 0 00 90 0 50 m h - 70 0 50 0 min - ft 0 0 84 to Curved blade impeller and variable discharge port for optimum performance Variable pitch dynamically balanced impeller for low noise and vibration level DIN 490 mechanical seal Nominal capacity 70 m h - 450 rpm. Service water flow 0.7 m h - Performance details 0 Hz Nominal capacity 00 m h - 750 rpm 4 Service water flow 0.8 m h - 0 0 0 0 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 5 4 5 0 0 0 0 00 000 000 0 00 0000 0 Hz 50 Hz A LRM90 0 00 0 0 mbar 00 00 00 70 Torr 00 00 LRM90 0 0 mbar 000 (7.09) 5 4 Pa Shaft Motor Motor Motor D C B 5 (8.8) 4 x Ø E F DN PN0 A B C D E F 50 Hz 55 (0.8) 55.5 (.) 0 (.0) 5 (.9) 0 (.0) 0 (8.) 0 Hz 58 (.8).5 (.) 7 (.77) 47 (.) 90 (7.48) 50 (9.84) LRM90 model is available with the following motor options. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 LRL90 is a pedestal version of this pump suitable for direct mounting with C face motors, it can be supplied bareshaft or with special motors. This pump can also be supplied as a complete package system, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRM5 SINGLE STAGE PUMP 0 5 0 0 00 00 00 70 Torr 0 0 70-00 90 0 50 ft min - 70 0 to Curved blade impeller and variable discharge port for optimum performance Variable pitch dynamically balanced impeller for low noise and vibration level DIN 490 mechanical seal Nominal capacity 00 m h - 450 rpm Service water flow 0.78 m h - Performance details 0 Hz Nominal capacity 0 m h - 750 rpm 4 Service water flow 0.8 m h - 50 0 0 00 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 5 4 5 0 0 0 0 00 00 000 000 0 00 0000 0 Hz 50 Hz A LRM5 0 0 0 mbar 00 00 00 70 Torr 00 LRM5 0 0 mbar 000 (7.09) 8 7 5 4 Pa 85 PROCESS SYSTEMS Shaft Motor Motor Motor D C B 5 (8.8) 4 x Ø E F DN PN0 A B C D E F 50 Hz 54 (.0) 74.5 (.87) 0 (.0) 5 (.9) 0 (.0) 0 (8.) 0 Hz 557 (.9) 8.5 (7.5) 7 (.77) 47 (.) 90 (7.48) 50 (9.84) LRM5 model is available with the following motor options. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 LRL5 is a pedestal version of this pump suitable for direct mounting with C face motors, it can be supplied bareshaft or with special motors. This pump can also be supplied as a complete package system, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
8 LRM50 SINGLE STAGE PUMP to Curved blade impeller and variable discharge port for optimum performance Variable pitch dynamically balanced impeller for low noise and vibration level DIN 490 mechanical seal Nominal capacity 0 m h - 450 rpm 4 Service water flow 0.8 m h - Performance details 0 Hz Nominal capacity 0 m h - 750 rpm 5.5 Service water flow 0.8 m h - Shaft Motor Motor Motor - 7 (4.45) 9 0 0 00 0 0 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 0 Hz 50 Hz (7.5) A 50 Hz 07.5 (.9) 0 Hz 05 (.8) 5 4 5 0 0 00 00 00 70 Torr B 09.5 (8.5) 07 (8.5) DN PN0 LRM50 0 0 00 0 0 mbar 5 0 0 0 0 00 00 000 000 0 00 0000 A 00 LRM50 00 90 70 0 50 0 0 00 00 00 70 Torr min - 0 0 mbar 000 (7.09) B 5 (8.8) 4 x Ø (8.50) 7 (0.87) 8 7 5 4 Pa ft LRM50 model is available with the following motor options. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 LRL50 is a pedestal version of this pump suitable for direct mounting with C face motors, it can be supplied bareshaft or with special motors. This pump can also be supplied as a complete package system, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRL50 SINGLE STAGE PUMP 0 5 0 0 00 00 00 70 Torr 50 0 0 m - h 00 0 0 0 00 90 ft min - 0 70 to Curved blade impeller and variable discharge port for optimum performance Variable pitch dynamically balanced impeller for low noise and vibration level DIN 490 mechanical seal Nominal capacity 00 m h - 450 rpm 5.5 Service water flow. m h - Performance details 0 Hz Nominal capacity 0 m h - 750 rpm 7.5 Service water flow. m h - Shaft S7 S7 S7 (.4) 95 (7.8) 00 0 0 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 8 7 5 4 5 0 0 0 Hz 50 Hz 0 0 0 DN5 PN0 LRL50 model is a pedestal mounted pump and is available with the following motor options as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. 00 00 00 000 000 0 00 0000 00 LRL50 0 50 0 0 mbar 00 00 00 70 Torr 048 (4.) 50Hz 08 (4.7) 0Hz 5 (8.90) (.) 4 x Ø8 LRL50 Ø (4.) 0 0 mbar 000 Ø85 0 9 8 7 00 (7.87) Pa 85 (5.) (7.8) Ø85 (7.8) 87 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRL0 SINGLE STAGE PUMP 5 0 0 00 00 00 70 Torr 0 00 00 m h - 0 0 0 0 00 ft min - 88 to Curved blade impeller and variable discharge port for optimum performance DIN 490 mechanical seal Externally mounted bearings Low noise level and vibration Nominal capacity 00 m h - 450 rpm 7.5 Service water flow. m h - Performance details 0 Hz Nominal capacity 0 m h - 750 rpm Service water flow.45 m h - 00 0 0 0 00 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 0 9 8 7 5 5 0 0 0 0 00 00 000 000 0 00 0000 0 Hz 50 Hz 8 (44.0) 50Hz 4 (47.) 0Hz 00 LRL0 LRL0 0 0 0 mbar 00 00 00 70 Torr 0 0 mbar 000 0 9 8 7 Pa 85 (5.) 00 (7.87) Body Cast iron S7 Cast iron Shaft S7 CF8M S7 (.4) 95 (7.8) 58 5 (0.) (.) DN5 PN0 4 x Ø8 LRL0 model is a pedestal mounted pump and is available with the following motor options as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRL450 SINGLE STAGE PUMP 5 0 0 00 00 00 70 Torr to Curved blade impeller and variable discharge port for optimum performance Variable pitch dynamically balanced impeller for low noise and vibration level DIN 490 mechanical seal Nominal capacity 70 m h - 450 rpm Service water flow.45 m h - Performance details 0 Hz Nominal capacity 4 m h - 750 rpm 5 Service water flow.45 m h - Shaft S7 S7 S7 m h - (.4) 95 (7.8) 500 00 0 0 00 0 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 4 0 8 5 0 0 0 Hz 50 Hz 0 00 000 000 0 00 0000 DN5 PN0 LRL450 0 0 00 0 0 00 0 0 00 0 0 mbar 00 00 00 70 Torr 0 59 (49.57) 50Hz 0 (5.0) 0Hz 0 5 (.9) (.) 00 4 x Ø8 00 LRL450 0 0 mbar 000 0 8 4 0 00 Pa (7.87) min - ft 85 (5.) 89 PROCESS SYSTEMS LRL450 model is a pedestal mounted pump and is available with the following motor options as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS00 SINGLE STAGE PUMP 50 00 550 5 0 0 00 00 00 70 Torr 0 0-500 450 50 00 50 00 0 min - ft 00 50 LRS00 0 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 90 to Curved blade impeller and variable discharge port for optimum performance DIN 490 mechanical seal Externally mounted bearings Low noise level vibration 0 8 4 0 8 5 0 0 00 00 00 70 Torr 0 0 00 LRS00 8 4 0 8 4 0 0 mbar Nominal capacity 5 m h - 450 rpm 5 Service water flow m h - Performance details 0 Hz Nominal capacity 5 m h - 750 rpm Service water flow. m h - Shaft S7 00 000 000 0 00 0 Hz 50 Hz 97 (7.44) 0 (.05) (.4) 458 (8.0) 8 (7.) 90 (.54) Ø4 (.5) 0000 DN00 PN0 5 (8.8) (5.0) 5 (8.8) 00 4 x Ø0 000 Pa 470 (8.50) (9.45) 9 (0.59) (.9) LRS00 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS0 SINGLE STAGE PUMP 00 000 5 0 0 00 00 00 70 Torr 00 900 0 500-700 00 500 00 ft min - 00 00 00 00 0 0 00 LRS0 00 0 0 mbar 00 000 000 0 00 0000 0 Hz 50 Hz 00 000 Pa to Curved blade impeller and variable discharge port for optimum performance DIN 490 mechanical seal Externally mounted bearings Low noise level vibration Nominal capacity 775 m h - 450 rpm Service water flow.5 m h - Performance details 0 Hz Nominal capacity 900 m h - 750 rpm 0 Service water flow.5 m h - Shaft S7 8 4 0 8 5 0 0 00 00 00 70 Torr 0 0 00 0 0 Hz 50 Hz (.54) 58 (4.09) 54 (0.4) 5 (.) 000 000 00 8 (7.) 90 (.54) Ø4 (.5) 0000 DN00 PN0 00 0 5 (8.8) (5.0) 5 (8.8) 00 DN00 4 x Ø0 LRS0 0 mbar 000 Pa LRS0 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. 4 4 8 4 0 8 4 470 (8.50) 9 (0.59) (.9) (9.45) Ø0 Ø0 (8.) (8.) 9 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
ALPHA 4+ SINGLE STAGE LIQUID RING VACUUM PUMP - 0 070 970 8 75 750 700 50 00 550 500 450 50 00 50 00 50 00 50 0 pi (mbar abs.) min - ft pi (Torr) 5 0 45 0 5 0 5 0 070 970 8 75 5 0 5 0 5 0 5 5 0 pi (mm Hg) -5-0 -5-0 -5 0 pi ("Hg) 9 Curved blade impeller and variable discharge port for optimum performance s Minimum number of body joints Externally mounted bearings Handles wet or dry gases Unaffected by liquid carryover Robust and simple construction to suit application Low noise level 5 05 4 x Ø 5 70 94 55 9 78 555 9 9 490 45 5 Ø00 85 8.5 Performance details at maximum speed Nominal Capacity 00 m h - Suction Pressure Nominal Speed 50 rpm Motor Power 55 Service water flow 4 m h - Performance details at minimum speed Nominal Capacity 000 m h - Suction Pressure Nominal Speed 9 rpm Motor Power 0 Service water flow.5 m h - DN50 PN0 STANDARD STAINLESS STEEL STAINLESS STEEL FITTED Impeller SG iron CF8M CF8M Shaft SG iron CF8M CF8M 055 75 90 0 70 0 55 490 70 50 70 85 85 Alpha 4+ model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. 00 05 For North American orders shop online: www.bocedwards.com or call: -0-848-90
ALPHA 0+ SINGLE STAGE LIQUID RING VACUUM PUMP - ft min - Curved blade impeller and variable discharge port for optimum performance s Minimum number of body joints Externally mounted bearings Handles wet or dry gases Unaffected by liquid carryover Robust and simple construction to suit application Low noise level 5 4xØ 05 5 70 04 50 454 858 9 4 9 5 70 00 45 Ø 00 85 9 PROCESS SYSTEMS Performance details at maximum speed Nominal capacity 00 m h - 0 rpm 55 Service water flow 4 m h - 90 85 70 85 85 Performance details at minimum speed Nominal capacity m h - 9 rpm 45 Service water flow 4 m h - 055 75 00 05 STANDARD STAINLESS STEEL Impeller SG iron CF8M CF8M Shaft SG iron CF8M CF8M STAINLESS STEEL FITTED 0 DN50 PN0 70 0 Alpha 0+ model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
ALPHA 0+ SINGLE STAGE LIQUID RING VACUUM PUMP - ft min - 94 Curved blade impeller and variable discharge port for optimum performance s Minimum number of body joints Externally mounted bearings Handles wet or dry gases Unaffected by liquid carryover Robust and simple construction to suit application Low noise level Once through, partial or total recovery seal liquid 45 Ø 0 05 45 90 5 0 55 0 85 85 70 0 5 0 85 Performance details at maximum speed Nominal capacity 00 m h - mbar A 8 rpm 75 Service water flow 7 m h - 70 895 0 70 70 45 4 Performance details at minimum speed Nominal capacity 500 m h - mbar A 585 rpm 7 Service water flow 5 m h - 00 85 50 STANDARD STAINLESS STEEL Impeller SG iron CF8M CF8M Shaft C45 XC48 XC48 STAINLESS STEEL FITTED 50 50 DN50 PN0 Alpha 0+ model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
ALPHA + SINGLE STAGE LIQUID RING VACUUM PUMP - ft min - Curved blade impeller and variable discharge port for optimum performance s Minimum number of body joints Externally mounted bearings Handles wet or dry gases Unaffected by liquid carryover Robust and simple construction to suit application Low noise level 45 Ø 0 05 45 90 5 0 55 0 85 85 70 0 5 Ø 85 95 PROCESS SYSTEMS Performance details at maximum speed Nominal capacity 850 m h - 8 rpm 90 Service water flow 5 m h - Performance details at minimum speed Nominal capacity 700 m h - 585 rpm 45 Service water flow m h - 70 00 895 0 70 70 45 4 85 50 STANDARD STAINLESS STEEL Impeller SG iron CF8M CF8M Shaft C45 XC48 XC48 STAINLESS STEEL FITTED 50 50 DN50 PN0 Alpha + model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
ALPHA 50+ SINGLE STAGE LIQUID RING VACUUM PUMP - ft min - 9 Curved blade impeller and variable discharge port for optimum performance s Minimum number of body joints Externally mounted bearings Handles wet or dry gases Unaffected by liquid carryover Robust and simple construction to suit application Low noise level 0 470 50 4xØ 90 7 4 0 0 785 00 900 0 00 70 Ø 450 0 Performance details at maximum speed Nominal capacity m h - 75 rpm 0 Service water flow 9 m h - Performance details at minimum speed Nominal capacity 0 m h - 490 rpm 55 Service water flow m h - 570 450 0 4 00 0 08 08 70 0 9 00 STANDARD STAINLESS STEEL Impeller SG iron CF8M CF8M Shaft C45 STAINLESS STEEL FITTED 50 500 50 DN00 PN0 Alpha 50+ model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
AL 70+ SINGLE STAGE LIQUID RING VACUUM PUMP - min - ft Curved blade impeller and variable discharge port for optimum performance s Minimum number of body joints Externally mounted bearings Handles wet or dry gases Unaffected by liquid carryover Robust and simple construction to suit application Low noise level 5 055 087 70 7 50 75 75 50 55 00 Ø 500 Ø / 97 PROCESS SYSTEMS Performance details at maximum speed Nominal capacity 000 m h - 50 rpm Service water flow m h - Performance details at minimum speed Nominal capacity 0 m h - rpm 75 Service water flow m h - 5 Ø / 45 50 5 490 DN00 PN0 5 08 78 85 4 holes Ø CAST IRON STAINLESS STEEL STAINLESS STEEL FITTED Impeller SG iron CF8M CF8M Shaft C45 XC48 XC48 Seals Mechanical Mechanical Mechanical AL 70+ model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
AL 00+ SINGLE STAGE LIQUID RING VACUUM PUMP - ft min - 00 0 0 00 0 98 Curved blade impeller and variable discharge port for optimum performance Packed Gland or s Externally mounted bearings Handles wet or dry gases Unaffected by liquid carryover Robust and simple construction to suit application Low noise level Once through, partial or total recovery seal liquid available 50 55 47 78 50 850 0 75 75 0 77 70 Ø 00 Ø / Performance details at maximum speed Nominal capacity 00 m h - 545 rpm 00 Service water flow 8 m h - 0/ 0 450 450 5 Performance details at minimum speed Nominal capacity 5000 m h - 5 rpm 90 Service water flow 9 m h - 500 0 5 595 750 955 55 5 4 holes Ø DN50 PN0 CAST IRON STAINLESS STEEL STAINLESS STEEL FITTED Impeller SG iron CF8M CF8M Shaft C45 XC48 XC48 Seals Mechanical Mechanical Mechanical AL 00+ model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
AL + SINGLE STAGE LIQUID RING VACUUM PUMPS - ft min - Curved blade impeller and variable discharge port for optimum performance s Minimum number of body joints Externally mounted bearings Handles wet or dry gases Unaffected by liquid carryover Robust and simple construction to suit application Low noise level 770 790 8.5 7.5 900 0 85 Ø 05 75 95 95 75 75 5 Ø 700 99 PROCESS SYSTEMS Performance details at maximum speed Nominal capacity 000 m h - 470 rpm 00 Service water flow 5 m h - Performance details at minimum speed Nominal capacity 500 m h - 90 rpm Service water flow m h - 7.5 Ø 0 07.5 770 588.5 790 9 90 DN00 PN0 588.5 8.5 95 5 4 4 holes Ø CAST IRON STAINLESS STEEL STAINLESS STEEL FITTED Impeller SG iron CF8M CF8M Shaft C45 XC48 XC48 Seals Mechanical Mechanical Mechanical AL + model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS50 TWO STAGE PUMP 5 0 0 00 00 00 70 Torr 75 70 5 0 5-55 50 45 5 0 0 5 0 min - ft 5 5 0 5 LRS50 0 0 00 0 0 mbar 0 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 00 Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Pedestal mounting option.5.0.5.0.5.0 0.5 5 0 0 0 00 00 00 70 Torr 4.5 4.0.5.0.5.0 LRS50.5.0 0 00 0 0 mbar Nominal capacity 55 m h - 850 rpm. Service water flow 0.8 m h - Performance details 0 Hz Nominal capacity 5 m h - 450 rpm Service water flow 0.8 m h - Shaft S7 S7 00 000 000 0 00 0000 0 Hz 50 Hz 44 (7.) 50 (9.84) (4.57) 5 (4.7) 58 (.8) /4" BSP (.58) 00 5 (5.98) 85 (7.8) 000 LRS50 model is a bareshaft pump with a pedestal mounted option LRL50 suitable for C flange motors, following motor options are offered as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. Ø9 (0.75) Pa 00 (.94) 8 (8.58) 55 (0.04) 00 (.94) 4 x Ø (0.47) For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS00 TWO STAGE PUMP 0 5 0 0 00 00 00 70 Torr 70 0 00 0-90 70 0 50 ft min - 50 0 0 0 LRS00 0 0 00 0 0 mbar 0 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Pedestal mounting option Nominal capacity 90 m h - 450 rpm Service water flow m h - Performance details 0 Hz Nominal capacity 00 m h - 750 rpm 4 Service water flow m h - Shaft S7 S7 4.5 4.0.5.0.5.0.5 5 0 0 00 00 00 70 Torr 00 0 0 Hz 50 Hz 0 0 000 000 00 47 (8.) 05 (8.07) 49 (5.87) /" BSP 0000 0 0 mbar 000 Pa LRS00 model is a bareshaft pump with a pedestal mounted option LRL00 suitable for C flange motors, following motor options are offered as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. 00 7 (.4) Ø8 (.0) 00 LRS00 45 (9.5) (5.5) 05 (.0) 99 75 4 x Ø4 (.90) (.89) (0.55) 0 (8.) 55 5.0 5.5 5.0 4.5 4.0.5.0.5 (.0) (4.9) 05 (.0) 0 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS50 TWO STAGE PUMP - 0 0 00 0 0 5 0 0 00 00 00 70 Torr LRS50 00 0 0 00 0 0 mbar 90 70 0 50 0 0 min - ft 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 0 Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Pedestal mounting option Nominal capacity 0 m h - 450 rpm 4 Service water flow.05 m h - Performance details 0 Hz Nominal capacity 50 m h - 750 rpm 5.5 Service water flow.05 m h - Shaft S7 S7.0 5.5 5.0 4.5 4.0.5.0.5 5 0 0 00 00 00 70 Torr 00 0 0 0 Hz 50 Hz 55 (.77) 54 (0.0) 0 000 000 00 (.84) 9 (5.47) DN PN0 0000 0 0 mbar 000 Pa LRS50 model is a bareshaft pump with a pedestal mounted option LRL50 suitable for C flange motors, following motor options are offered as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. 00 00 LRS50 90 (.4) 75 (.89) Ø8 (.0) 54 (.) (5.5) 0 (8.) 45 8.0 7.5 7.0.5.0 5.5 5.0 4.5 4.0.5 0 (.0) (5.7) 95 (5.55) 75 4 x Ø5 (.89) (0.59) For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS00 TWO STAGE PUMP 0 00 5 0 0 00 00 00 70 Torr 0-0 0 0 00 90 70 min - ft 00 0 0 LRS00 50 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Pedestal mounting option Nominal capacity m h - 450 rpm 5.5 Service water flow.05 m h - Performance details 0 Hz Nominal capacity 00 m h - 750 rpm 7.5 Service water flow.05 m h - Shaft S7 S7 9 8 7 5 4 5 0 0 00 00 00 70 Torr 00 0 0 Hz 50 Hz (4.5) 4 (.7) 0 0 000 000 00 9 (5.59) 9 (5.47) DN PN0 0000 0 0 mbar 000 Pa LRS00 model is a bareshaft pump with a pedestal mounted option LRL00 suitable for C flange motors, following motor options are offered as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. 00 00 LRS00 90 (.4) 75 (.89) Ø8 (.0) 54 (.) (5.5) 0 (8.) 45 0 75 4 x Ø5 (.89) (0.59) 9 8 7 5 4 0 (.0) (5.7) 95 (5.55) 0 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS75 TWO STAGE PUMP - 0 00 0 0 00 0 0 5 0 0 00 00 00 70 Torr LRS75 70 0 50 0 0 0 00 90 0 0 00 0 0 mbar min - ft 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 04 Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Pedestal mounting option Nominal capacity 50 m h - 450 rpm 9 Service water flow. m h - Performance details 0 Hz Nominal capacity 75 m h - 750 rpm Service water flow. m h - Shaft S7 S7 0 9 8 7 5 0 0 0 Hz 50 Hz 0 0 00 000 000 0 00 0000 8 (.85) (.8) 5 4 (.) (8.47) 5 (.50) 00 00 00 70 Torr DN50 PN0 LRS75 LRS75 model is a bareshaft pump with a pedestal mounted option LRL75 suitable for C flange motors, following motor options are offered as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. 00 0 (.) Ø (.) 00 95 (5.55) 0 (9.0) (9.45) 00 (.8) 0 0 mbar 000 7 5 4 0 9 00 (7.87) (7.09) Pa 4 x Ø (0.) 500 (9.9) For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS50 TWO STAGE PUMP 5 0 0 00 00 00 70 Torr 0 00-00 0 0 0 0 ft min - 00 00 LRS50 0 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Pedestal mounting option Nominal capacity 50 m h - 450 rpm Service water flow. m h - Performance details 0 Hz Nominal capacity m h - 750 rpm 5 Service water flow. m h - Shaft S7 S7 5 4 0 9 5 0 0 Hz 50 Hz 0 00 000 000 0 00 0000 00 00 00 70 Torr DN50 PN0 LRS50 8 0 0 00 0 0 mbar 74 (9.) 8 (5.04) 5 48 (8.98) (8.47) 5 (.50) 00 000 LRS50 model is a bareshaft pump with a pedestal mounted option LRL50 suitable for C flange motors, following motor options are offered as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. 0 (.) Ø (.) 95 (5.55) 0 (9.0) (9.45) 00 (.8) 0 9 8 7 5 4 00 (7.87) (7.09) Pa 4 x Ø (0.) 500 (9.9) 05 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS45 TWO STAGE PUMP 5 0 0 00 00 00 70 Torr 500 0-00 0 0 0 00 0 0 00 min - ft 00 LRS45 0 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 0 Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Pedestal mounting option Nominal capacity 75 m h - 450 rpm 5 Service water flow.4 m h - Performance details 0 Hz Nominal capacity 450 m h - 750 rpm 8.5 Service water flow.4 m h - Shaft S7 S7 0 8 4 0 8 5 0 0 00 00 00 70 Torr 00 0 0 Hz 50 Hz 78 (0.79) 0 0 00 000 000 00 4 (.) 5 5 (0.55) (8.47) 5 (.50) DN50 PN0 0000 0 (.) Ø (.) LRS45 model is a bareshaft pump with a pedestal mounted option LRL45 suitable for C flange motors, following motor options are offered as standard. IEC Eurovoltage 0-/-45//50Hz, IP55, Class F, B/B5 IEC 0-//0Hz, IP55, Class F, B/B5 NEMA UL CSA Epact 0-//0Hz, IP55, Class F B/B5 These pumps can be supplied as complete package systems, suitable for once through, partial or total recirculation of the seal liquid. Special and hazardous motors are available on request. Custom engineered packages to meet more complex process system requirements are also available. 00 LRS45 95 (5.55) 0 (9.0) (9.45) 00 (.8) 0 0 mbar 000 00 8 4 0 8 4 (7.09) (7.87) Pa 4 x Ø (0.) 500 (9.9) For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS00 TWO STAGE PUMP 0 750 5 0 0 00 00 00 70 Torr 4 700 50-00 550 500 450 0 0 ft min - 50 00 LRS00 00 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 5 0 0 00 00 00 70 Torr Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Nominal capacity 00 m h - 450 rpm Service water flow.7 m h - Performance details 0 Hz Nominal capacity 50 m h - 750 rpm 0 Service water flow.7 m h - Shaft S7 S7 0 8 4 0 8 4 00 0 0 Hz 50 Hz 0 0 000 000 00 5 (.84) (7.09) DN PN0 0000 0 0 mbar 000 Pa LRS00 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. 00 90 00 LRS00 847 (.5) 45 (7.) 4 (8.90) 0 5 (9.5) (9.0) Ø4 (.5) (.54) 95 (.) 0 (4.7) 8 4 0 8 4 0 70 5 (.9) 0 (8.7) 05 (.8) (8.8) 4 x Ø8 (0.7) 07 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS750 TWO STAGE PUMP 900 850 0 750 5 0 0 00 00 00 70 Torr 50 4 4-700 50 00 0 min - ft 550 0 500 450 LRS750 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 08 Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Nominal capacity 700 m h - 450 rpm 0 Service water flow.5 m h - Performance details 0 Hz Nominal capacity 0 m h - 750 rpm 7 Service water flow.5 m h - Shaft S7 S7 8 4 0 5 0 0 00 00 00 70 Torr 00 0 0 Hz 50 Hz 0 0 00 000 000 00 DN PN0 0000 00 LRS750 9 (.9) 45 (7.) 55 (.4) 0 5 (9.5) (9.0) 5 (.8) (7.09) 0 0 mbar 000 LRS750 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. Ø4 (.5) 90 (.54) 95 (.) 0 (4.7) 50 45 5 0 5 0 70 5 Pa (.9) 0 (8.7) 05 (.8) (8.8) 4 x Ø8 (0.7) For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS000 TWO STAGE PUMP 00 000 900 0 5 0 0 00 00 00 70 Torr 00 500-700 00 500 00 00 00 ft min - 00 00 LRS000 00 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 5 0 0 00 00 00 70 Torr Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Nominal capacity 0 m h - 90 rpm 0 Service water flow m h - Performance details 0 Hz Nominal capacity 000 m h - 50 rpm 45 Service water flow 7 m h - Shaft S7 S7 4 (.47) 44 8 4 0 00 0 0 Hz 50 Hz 9 (5.9) 0 0 00 000 000 00 54 44 (.8) (7.09) 9 (5.) 44.0 (7.5) 0000 DN00 PN0 0 (4.7) LRS000 00 LRS000 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. Ø0 (.) 55 50 45 5 0 5 0 0 mbar 000 Pa 70 (4.57) (5.75) 4 (8.90) 5 (8.8) 75 (0.8) 0 (.0) (.8) 4 x Ø0 (0.79) 09 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS50 TWO STAGE PUMP 500 00 5 0 0 00 00 00 70 Torr 0-00 00 000 900 0 700 00 500 ft min - 700 00 500 LRS50 00 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 0 Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Nominal capacity 00 m h - 90 rpm 7 Service water flow 7 m h - Performance details 0 Hz Nominal capacity m h - 50 rpm 55 Service water flow 8 m h - Shaft S7 S7 4 (.47) 5 48 44 8 4 0 5 0 0 0 Hz 50 Hz 0 0 00 000 000 0 00 0000 49 (57.84) 9 44 (7.8) (7.09) 789 (.0) 44.0 00 00 00 70 Torr (7.5) DN00 PN0 LRS50 LRS50 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. 00 0 (4.7) Ø0 (.) 00 0 0 mbar 000 70 (4.57) (5.75) 4 (8.90) 70 5 0 55 50 45 5 0 Pa 5 (8.8) 75 (0.8) 0 (.0) 4 x Ø0 (.8) For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS750 TWO STAGE PUMP 900 0 700 5 0 0 00 00 00 70 Torr 00 000-00 500 00 00 900 0 700 ft min - 00 000 900 LRS750 00 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 5 0 0 00 00 00 70 Torr Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Nominal capacity 00 m h - 90 rpm 45 Service water flow 9 m h - Performance details 0 Hz Nominal capacity 0 m h - 50 rpm 75 Service water flow 9 m h - Shaft S7 S7 4 (.47) 0 5 5 48 44 8 00 0 0 0 Hz 50 Hz 59 (.77) 0 000 000 00 79 44 (.) (7.09) 889 (5.0) 44.0 (7.5) 0000 DN00 PN0 LRS750 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. 00 0 (4.7) Ø0 (.) LRS750 0 0 mbar 00 000 70 (4.57) (5.75) 4 (8.90) 75 70 5 0 55 50 45 5 Pa (8.8) 75 (0.8) (.8) 0 (.0) 4 x Ø0 PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS000 TWO STAGE PUMP 00 00 5 0 0 00 00 00 70 Torr 00-00 000 900 0 700 00 00 000 min - ft 00 500 900 00 LRS000 0 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Nominal capacity 000 m h - 75 rpm 75 Service water flow 4 m h - Performance details 0 Hz Nominal capacity 00 m h - 75 rpm 0 Service water flow 4 m h - Shaft S7 S7 9 84 7 8 0 5 5 0 0 Hz 50 Hz 0 00 000 000 0 00 0000 00 00 00 70 Torr DN50 PN0 LRS000 44 0 0 0 00 0 0 mbar 99 (7.4) 47 80 (8.) (.8) (5.04) 90 (7.) 5 (.09) 00 000 LRS000 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. Ø (.5) 0 (.0) 4 x Ø4 500 (9.9) 50 (0.47) 50 (5.59) 0 0 00 90 70 Pa 4 05 (7.) (4.9) (.0) For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS500 TWO STAGE PUMP - 00 000 0 00 00 000 0 00 00 5 0 0 00 00 00 70 Torr LRS500 0 00 00 000 0 0 0 00 0 0 mbar min - ft 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 5 0 0 00 00 00 70 Torr Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Nominal capacity 00 m h - 75 rpm 90 Service water flow 5 m h - Performance details 0 Hz Nominal capacity 000 m h - 8 rpm Service water flow 5 m h - Shaft S7 S7 0 00 90 70 0 00 000 000 0 00 0000 0 Hz 50 Hz DN50 PN0 LRS500 50 70 0 0 00 0 0 mbar 089 (8.4) 47 9 (8.) (8.58) (5.04) 0 (4.70) 57 (.48) 00 000 LRS500 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. Ø (.5) 0 (.0) 4 x Ø4 500 (9.9) 50 (0.47) 50 (5.59) 0 0 0 00 90 Pa 4 05 (7.) (4.9) (.0) PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
LRS500 TWO STAGE PUMP 0 5 0 0 00 00 00 70 Torr 00 00 00 900-000 0 00 700 500 min - ft 00 00 000 0 LRS500 00 0 0 00 0 0 mbar 00 000 000 00 000 Pa 0 00 0000 0 Hz 50 Hz 5 0 0 00 00 00 70 Torr 4 Higher efficiency at low pressures Selection of materials to suit application DIN 490 mechanical seal Simple rugged design Nominal capacity 000 m h - 75 rpm 0 Service water flow 8 m h - Performance details 0 Hz Nominal capacity 700 m h - 8 rpm 50 Service water flow 8 m h - Shaft S7 S7 0 0 0 00 90 70 0 00 000 000 0 00 0000 0 Hz 50 Hz DN50 PN0 LRS500 50 70 0 0 00 0 0 mbar 89 (8.8) 47 0 (8.) (4.5) (5.04) 0 (47.4) 57 (.48) 00 000 LRS500 model is a bareshaft machine and can be supplied as part of a standard package, incorporating electric motor, baseplate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages to meet more complex process system requirements are also available. Ø (.5) 0 (.0) 4 x Ø4 500 (9.9) 50 (0.47) 50 (5.59) 70 50 0 0 90 Pa 4 05 (7.) (4.9) (.0) For North American orders shop online: www.bocedwards.com or call: -0-848-90
SHR SERIES LIQUID RING VACUUM PUMPS NEW CAST IRON SG IRON STAINLESS STEEL FITTED Casing Cast iron SG iron Cast iron Impeller SG iron SG iron CF8M Port plate Cast iron SG iron Cast iron Body Carbon steel Carbon steel Carbon steel Shaft S7 S7 Mechanical Seal To suit process requirements STAINLESS STEEL ALUMINUM BRONZE DUPLEX STAINLESS STEEL Casing CF8M Aluminum bronze Duplex Impeller CF8M Aluminum bronze Duplex Port plate CF8M Aluminum bronze Duplex Body CF8M Aluminum bronze Duplex Shaft CF8M Monel Duplex Mechanical Seal To suit process requirements The SHR Series covers capacities from 500 to 5000 m h - with suction pressures down to 0 mbar A. The pump design incorporates many of the requirements of API 8 as standard and can be modified to meet customer specific specifications. Specialized seal arrangements, design pressures, inspection procedures, documentation and quality assurance needs can be accommodated. Generally these models will form an integral part of a fully engineered process vacuum system. Pump performance Dry Air (m /h) 000 000 000 0000 9000 00 7000 000 5000 0 000 000 500 000 900 0 700 00 500 00 8 7 5 4 00 0 0 00 00 00 0 000 Suction Pressure (mbar) Performance based upon dry air at 0 C and seal water temperature of 5 C, atmospheric pressure of 0 mbar A. Subject to a 0% tolerance. SHR 00 5 SHR 500 SHR SHR 850 SHR 750 7 SHR 500 4 SHR 950 8 SHR 500 Options s available Alternative materials of construction eg. aluminum bronze, stainless steel, duplex steel are available. PUMP SIZE G F DIMENSIONS A B C D E F G H J SHR 00 98 45 0 50 59 0 7 SHR 99 45 0 50 59 0 44 SHR 750 79 4 0 85 0 774 48 55 SHR 950 79 4 0 85 0 774 48 5 SHR 500 84 50 500 50 04 598 70 SHR 850 004 50 500 50 04 598 900 SHR 500 0 0 00 50 0 07 7 SHR 500 455 000 0 70 4 59 9 APPLICATIONS Vacuum filtration Condenser air evacuation Vacuum distillation Vacuum drying Central vacuum systems Evaporation Crystallizers Vacuum moulding Impregnation Deaeration A J E C B E H D 5 PROCESS SYSTEMS PRODUCT DESCRIPTION Contact BOC Edwards for information about ordering. For North American orders shop online: www.bocedwards.com or call: -0-848-90 ORDERING NUMBER
NEW STEAM EJECTOR VACUUM SYSTEMS BOC Edwards has over 90 years experience in the design and supply of steam ejector systems. BOC Edwards has been instrumental in the development of the steam ejector from the relatively crude single stage devices which evolved into today s highly efficient multi-stage systems. Process and mechanical design expertise is combined with project management skills for the supply of individual items of plant, or the execution of total projects including installation and commissioning. The company has an immense reputation in applications including the following: Refinery Vacuum Systems Vacuum Distillation Units Flash Evaporation for Seawater Desalination Turbine Condenser Air Extraction Edible Oil Processing Polymerization Crystallization Evaporative Cooling Features of the steam ejector solution Low Capital Cost No moving parts Low maintenance Wide choice of materials No close clearances No size limitation Ability to handle large vapor load Liquid slugs do not cause mechanical damage Not sensitive to suction temperature 7 8 Range Ejectors can be arranged as multi-stage systems with interstage condensers, which may be the direct contact type (jet condenser) or surface type (shell and tube). The multi-stage arrangements allows lower suction pressures to be achieved than could be produced by a single stage ejector. Interstage condensers economize on the use of motive steam since the operating steam from stages upstream of the condenser is condensed leaving only saturated incondensable gases to be handled by the succeeding stage or stages. Operating pressure Single Stage 50-0 mbar Two Stage 5-5 mbar Three Stage 0-7 mbar Four Stage mbar Five Stage 0. mbar As ejectors can be economically manufactured on an individual basis to suit specific customer needs they have a wide capacity range, which is limited only by the manufacturing techniques relevant to the material of construction, typically this range would be between 0 -.5 x 0 m h -. 5 4 Strainer 5 Diffuser Motive steam Suction Nozzle 7 Vapor Head 4 Discharge 8 Nozzle Holder For North American orders shop online: www.bocedwards.com or call: -0-848-90
Interstage jet condensers Jet or spray type condensers operate by condensing steam by direct contact with the cooling water. This type of condenser can be located at barometric height or at low level using a condensate extraction pump. Jet condensers tend to use less cooling water than surface types although as the ejected vapors are in contact with the cooling water the treatment of any resulting effluent must be considered. Interstage surface condensers Surface condensers of the shell and tube type perform the same function as jet types however the ejector steam and process vapors are condensed on the tube surfaces without contact with the cooling water, greatly reducing the potential effluent problem. Removable end covers on the condensers allow easy cleaning of the tubes. Ejector and ejector liquid ring pump combinations can be supplied using BOC Edwards designed liquid ring pumps. The depth of experience in both types of equipment allows optimization of the equipment both in performance and economy of utilities. Applications and design services BOC Edwards offers a comprehensive design service based on unrivalled process vacuum experience, application knowledge and design capabilities. In order to propose a solution the following information is required at the enquiry stage: Suction flow Composition and Molecular weight Discharge temperature System volume Evacuation time Discharge pressure Motive pressure and temperature, max-normal-min Cooling water temperature, max-normal-min Type of condenser direct or indirect Type of installation Barometric or low level Design codes applicable 7 PROCESS SYSTEMS Multistage ejector/liquid ring pump combinations BOC Edwards are able to offer combinations of steam ejectors and liquid ring pumps where the liquid ring pump replaces the final stage or stages of a steam ejector system. This enables large vapor/gas flows to be handled at the low pressures associated with multi-stage steam ejector sets whilst substantially reducing steam consumption and hence operating costs. For North American orders shop online: www.bocedwards.com or call: -0-848-90
8 DEAERATION EQUIPMENT BOC Edwards experience in water deaeration equipment spans more than 70 years, serving essentially two markets and applications: Seawater deaerators for water injection systems for secondary recovery of oil from offshore reservoirs Boiler feedwater and process deaeration for power generation plants, boilers and process use Seawater deaerators Secondary recovery by means of water injection is frequently an essential feature of crude oil production. It is often a crucial factor in achieving and sustaining economically viable production rates. The source of the water is dependant on the location of the production facility and could be from a subsurface source such as produced water or an aquifer, or from a surface source such as the sea or a river. The latter two sources, as with most surface waters, normally contain substantial levels of dissolved oxygen. In order to control corrosion rates in downstream plant and to inhibit bacterial growth this oxygen must be removed before the water is used for injection. BOC Edwards is able to provide extensively proven deaeration technology to facilitate the removal of this oxygen to levels such that the remaining residual may be economically removed by the addition of a chemical scavenger. The following options are available: Spray/pack deaerators Packed column deaerators Trace gas stripping deaerators Spray/pack deaerators Although conventional packed bed deaerators offer a satisfactory solution in many circumstances, the unique BOC Edwards spray packed deaerator technology offers significant advantages over conventional designs. It affords additional benefits for FPSO installations because the mass transfer efficiency of the spray section is unaffected by wave motion and by any foaming of the water as it enters the deaerator.. NEW 5 This patented design offers many benefits over conventional deaerators and compact deaerator designs including the following: Substantial height and weight reduction compared to conventional vacuum stripping columns May be used upstream of sulphate reduction membranes, since it can operate without the addition of anti-foam chemicals Unaffected by any motion of the installation, making it the preferred technology for FPSO applications There is no reliance on catalysts, which have a limited life span and may be poisoned There is no requirement for storage and/or production of hazardous combustible products such as methanol or hydrogen Extensively field-proven technology, with over 50 units utilizing the spray distributor supplied for water injection service Packed column deaerators This conventional design uses well-proven technology and remains the industry standard for both onshore and offshore applications worldwide. The design is suitable for both vacuum and gas stripping applications with corrosion resistant tower internals designed for foam retention, efficient liquid and gas phase distribution and redistribution, in order to maximize mass transfer efficiency. Trace gas stripping deaerators This patented system combines vacuum stripping and inert gas stripping to offer a unit that operates under vacuum with the mass transfer process being assisted by a small quantity of inert gas admitted into the deaerator column. This process allows highly compact deaerator columns to be used whilst the required vacuum pump capacity is substantially lower than would be associated with conventional vacuum stripping deaerators. Deaeration and the use of sulphate removal Systems BOC Edwards is able to offer field proven designs for water injection deaerators, which are required to operate upstream of sulphate removal systems. Such installations require that the deaerator must operate without antifoam agents since the use of such agents in incompatible with the membranes used in the sulphate removal system. 4 First stage vapor take-off 4 Recycle Oxygen scavenger 5 Second stage vapor take - off Water outlet Water inlet For North American orders shop online: www.bocedwards.com or call: -0-848-90
Breweries - deaerating water in the production of high gravity beer. NEW BOC Edwards has supplied units to replace conventional packed column deaerator designs supplied by other manufacturers that have proved to be incapable of operating at the required design conditions without the use of antifoam agents. Our ability to offer proven technologies, which provide enhanced mass transfer capability can enable existing deaerator vessels to be re-used in order to minimize the cost and downtime associated with the upgrade. Sulphate removal systems may be installed upstream of the deaerator in which case antifoam agents may be used, however this location upstream of the deaerator column has many serious disadvantages, which include: of the sulphate removal system must be suitable for service in contact with undeaerated seawater Presence of oxygen in the seawater will increase the risk of oxidation of the membranes and/or the possibility of aerobic bacteria or algae growth on the membranes Additional precautions to ensure the removal of any hydrocarbons present in the water may be necessary prior to the sulphate removal system to ensure that these do not contact the membranes Deaeration on floating production vessels BOC Edwards has considerable experience in the supply of deaeration packages for use on floating production vessels including installations on FPSO's, semi-submersibles and on tension leg platforms. These production facilities require that the deaeration package is insensitive to the motion of the installation and that the height and weight of the package together with the elevation of the center of gravity above grade level are minimized. Our deaeration technology includes designs that are ideally suited to such floating production facilities, with references available for these types of installations at locations around the world, in conditions ranging from offshore Canada to Equatorial Africa. 5 Vent 4 Deaerated water outlet Feed water inlet 5 Off-load Heating Steam Heating steam inlet High level pressure deaerators For modern industrial installations where heat economy is essential, and where even lower oxygen contents are demanded to avoid costly maintenance work, the pressure heater/deaerator system is used where inlet boiler feed water is heated to well above atmospheric boiling point. BOC Edwards has developed a system of sprays and trays such that the feed water enters the deaerator through an atomizing spray valve assembly into the upper volume of the deaerator vessel where primary deaeration takes place. The feed then falls over a series of trays to the base of the deaerator during the course of which secondary deaeration takes placed. Heating steam is admitted via a diffuser positioned below the tray assembly to ensure ultimate heating effect and optimum scrubbing action so as to produce residual oxygen contents down to 0.007 p.p.m. or less. This deaerating section is mounted on a storage compartment such that the whole system can be mounted at a suitable height to obtain the required suction head on the boiler feed pump advised by the manufacturer. 4 9 PROCESS SYSTEMS Boiler feedwater and process water deaerators The types of deaerator described have been developed over years of experience of the different types required for numerous industrial applications. Examples of some of the industries where deaeration is used are: Power stations - treating boiler feed water Oil refineries and chemical plants - treating boiler feed water and process deaeration. For North American orders shop online: www.bocedwards.com or call: -0-848-90
5 0 4 Vent 4 Discharge to storage vessel Feed water inlet 5 Balance pipe return Heating steam inlet Manway For North American orders shop online: www.bocedwards.com or call: -0-848-90
AIR BLOWERS AND COMPRESSORS The acquisition in 00 of the H organization comprising Hick Hargreaves (United Kingdom), Hibon (France) and Wilhelm Klein (Germany) has enabled BOC Edwards to offer to the market a world-class range of air blowers and compression equipment which are used to provide air/gas volumes at varying pressures above atmospheric, as well as for vacuum duties. The following information gives a brief overview of the ranges available. For more detailed information please contact your usual customer support division. POSITIVE DISPLACEMENT AIR BLOWERS PRODUCTS FLOW (m h - ) OPERATING PRESSURE Positive Displacement Air Blowers 0-5000 500 mbar abs - bar abs Multistage Centrifugal Blowers 5000-50000 500 mbar abs - bar abs High Vacuum Air Injection 00-9000 00 mbar abs Blowers (Pre-Inlet) Dry Bulk Truck Pressure Blowers (Truckstar) 00-700 500 mbar abs -. bar abs Process Blowers (Special Seals & Materials) 0-0000 500 mbar abs -.7 bar abs Oil Free Screw Compressor 00-8500 500 mbar abs - 4 bar abs APPLICATIONS Flows 0-5000 m h - Pressures to bar gauge and vacuum to 500 mbar abs Tri-lobe construction with built-in pulse control system to reduce pulsations and noise Five bearings standard with drive shaft suitable for v-belt and direct drives Oil splash lubricated bearings for long service Piston rings and labyrinth seals, lifetime guarantee Heavy duty casing and end plates with cast ribs for strength Heavy duty roller bearing at shaft end Helical gears located on the driver side for more input torque capability Better balancing to withstand fatigue Spark proof bronze impellers or gas tight mechanical seals available for special applications MARKETS NFORMATION ORDERING APPLICATIONS OEM Pneumatic Conveying X X X X Dust removal X X Vacuuandling systems X Env t Aeration X X X Biogas recovery X X Methane transfer X Sewer cleaning X Digestors X Cement Oxidation X X X Combustion air - gas X burners Homogenization X Food Fluidization X X Crystallization X Chemical Mechanical steam compression X Vacuum filtration X Gas burners X Gas transfer circulation X Vacuum swing absorption X Paper ind. Felt conditioning X Impregnation/ Dewatering X Navy Compressed air for ballasts X Radar interference X Power Flue gas desulfurization X X X Fly ash suction X AIR INJECTION TRUCKSTAR PROCESS Silent flow packages New ergonomic and compact design used with SN blower series Minimum footprint Acoustical type combined inlet filter/silencer Automatic belt tensioning system Motor lifting device for v-belt replacement Easy filter and oil changes Acoustic enclosure Developed to meet stringent noise levels Built in fan for efficient cooling Instrumentation for pressure and temperature wall mounted on the enclosure Suitable for outdoor installation PROCESS SYSTEMS For North American orders shop online: www.bocedwards.com or call: -0-848-90
MULTISTAGE CENTRIFUGAL BLOWERS Applications Mobile waste handling units, industrial, municipal, wet and dry Pneumatic conveying (fly ash, chemicals, pharmaceuticals, etc) Central vacuum systems (packaging, envelope manufacturing, vacuum cleaning, etc) DRY BULK TRUCK PRESSURE BLOWERS Flows 5000-50000 m h - Pressures to bar gauge. Vacuum to 500 mbar abs Vertically split cast iron casing Cast or riveted type impellers, statically and dynamically balanced Carbon ring seals to reduce air leakage and improve efficiency Cast aluminum bearing housing for better heat dissipation Oil splash lubricated bearings with constant level oiler to ensure long bearing life Balancing piston on larger models to counteract thrust load on bearings Optimized ratios of impellers vs diffuser diameters and large turning radius of interstage channel for higher efficiencies The Truckstar range has been developed specifically for dry bulk transfer applications on trucks for the cement, fly ash, lime, flour, powders, sugar, plastics pellets, sand grain industries... Flows 00-700 m h - Pressure to. bar gauge. Vacuum to 500 mbar abs Tri-lobe construction with pulsation control ports for smoother operation Oil splash lubricated bearings and large capacity sumps Double ring feeder and gear retainers for more input torque capability Heavy duty casting ribbed for rigidity and noise attenuation Built-in melting plugs for temperature protection PROCESS BLOWERS VACUUM AIR INJECTION BLOWERS Flows of 00-9000 m h - Vacuum to 00 mbar abs Tri-lobe construction to reduce pulsations, noise level and vibrations Five bearings standard designed for maximum speed and vacuum Helical gears located on the drive side for more input torque capability Oil lubrication and large oil sumps to improve bearing life Self cooling and runs cooler for long service No need for vacuum relief valve. Can operate even with blanked inlet High vacuum and efficient on wet and dry products Flows to 0000 m h - Pressure to.7 bar gauge. Vacuum to 500 mbar abs Tri-lobe construction with pulse control system to reduce pulsations and noise Five bearings standard designed for v-belt or direct drive Oil lubrication at both ends with large sumps Choice of shaft and main seals for gases Wide choice of construction material to meet process requirements 00% oil free gas guaranteed Complete packages including accessories and control system These units can be designed to handle a wide variety of gases. Various materials and sealing designs are available to meet most process requirements and international standards. For North American orders shop online: www.bocedwards.com or call: -0-848-90
OIL FREE SCREW COMPRESSORS Industrial gases/vacuum swing absorption Flows to 8500 m h - Pressures to bar gauge and vacuum to 500 mbar abs Single or multi-stage blower systems Air-end manufactured froigh grade cast iron directly connected to an integral gear box Forged steel rotors for constant performance Calculated tolerances between the rotors and the body to optimize efficiency Anti-friction bearings optimized for maximum reliability Mechanically driven oil pump from main shaft with integral oil tank and external oil/air heat exchanger Complete packages including accessories and control system Screw compressors are an optimum solution for applications requiring oilfree gases at higher operating pressures. Typical applications are: Dense phase pneumatic conveying of bulk material in chemical, food and cement industries Desulphurization of combustion gases Ballast pressurization Aeration in sewage treatment ENGINEERING CAPABILITIES Petro chemicals/nitrogen gas circulation Chemical industry/manufacture of hydrogen peroxide/ Stationary air PROCESS SYSTEMS Environment/Waste treatment/biogas recovery For North American orders shop online: www.bocedwards.com or call: -0-848-90
Environment/Waste water treatment/biological aeration 4 Chemical industry/manufacture of chemical products/gas compression on hydrogenation loop Please contact BOC Edwards for recommendation of a design to suit your applications that also ensures ease of maintenance and serviceability. For North American orders shop online: www.bocedwards.com or call: -0-848-90