Quality BF LEVER OPERTED GERBOX OPERTED FETURES Designed and manufactured to S79. Vulcanized liner resists deformation. Rated to 00kpa from 0mm up to 00mm and 000kpa from 700mm up to 00mm. Stainless steel fasteners. Bi-directional bubble-tight sealing, with no leakage under pressure. ISO top mounting flange for easy actuation. Gearbox fitted as standard on all sizes 00mm and above. OPTIONS Full stainless steel lever. Gearboxes available for valves 0mm and below. Pneumatic and electric actuation. Limit switches and positioners. Extension fixed and non-fixed. Wide selection of body & disc materials: Cast Iron Ductile Iron luminium Bronze Stainless Steel Duplex Stainless Steel Other specialty materials on request Wide selection of seal materials: EPDM NBR FPM (Viton) Drilling to suit a wide range of flanging standards: S9 T/E S087 C (S9 T/D) S087 C NSI 0 EN 09 CCORDING TO S79 PI09 MSS SP7 TECHNICL DT Size Range: Pressure Classes: Face to face: FCTORY CCREDITED: ISO 9000:008 IS O ISO7 EN09 PN0, PN, PN, PN ccording to S79 Top Flange: ccording to ISO Flange Drilling: Temperature Range: Leakage Tests: Coating: CE879 S087-0 C to +90 C (EPDM standard) ccording to S79 Fusion Bonded Epoxy (S00 approved) SYSTEM 90 0:000 CERTIFICTION ISO 9000:000 UKS QULITY MNGEMENT 00 ISO 9000:008 CE0879 page BF_V_0078.
BF Quality DESCRIPTION & MTERILS Figure. VFI s BF is a Double Flanged Seal on Body Butterfly Valve used extensively in the water and wastewater market. SS STEM CONFIGURTION Round with key, square, double D and square options. EPDM DOUBLE O-RING Prevents leakage from stem. TOP FLNGE Top flange as per ISO standard for simple fitting of lever, gearbox or actuator. PTFE BUSHING Stem bushing reduces valve torque and prevents stem corrosion. DISC Precision profile disc provides bubble-tight shut-off and assures minimum torque value and long seal life. (other materials available) page DOUBLE FLNGED Drilled to S087C (others on request). EPDM SET (LINER) Vulcanised liner. Other materials available on request. DUCTILE IRON (FUSION BONDED EPOXY COTED) BODY For superior strength. CONNECTION BETWEEN DISC & SHFT Pin, spline or square connection are all available. BF_V_0078.
Quality BF MTERIL SPECIFICTIONS & PRTS LIST NO. DESCRIPTION MTERIL Body Ductile Iron (fusion bonded epoxy coated) Disc SS Stem SS Bushing PTFE Seat EPDM O-Ring EPDM 7 Pin SS DIMENSIONL DRWINGS DN0 - DN80 DN00 - DN00 M M SECTION - 7 E E h h h n-ød page b b FxF BF DN0 - DN0 S087 C ISO TOP FLNGE DN FxF b b h h h E E n-ød FLNGE M Weight NO. (kg) 0 08 7 80 0 9 8. 9-8 F0/ F07 /90-8 0/70 x.9 7 80 9 88. 7-8 F0/ F07 /90-8 0/70 x 8. 80 7 9 9 8-8 F0/ F07 /90-8 0/70 x 0. 00 7 7 0 9 78 0-8 F07 90-0 70 x. 0 7.8 70 9 0 0 80 8-8 F07 90-0 70 x 7.8 0 0 9 9 80 9 8. 9.7 80 00 8-8 F07 90-0 70 x. Note: Flange dimensions may vary from S087. For lever handle dimensions, refer to pg. BF_V_0078.
BF Quality MTERIL SPECIFICTIONS & PRTS LIST NO. DESCRIPTION MTERIL Body Ductile Iron (fusion bonded epoxy coated) Disc SS Stem SS EPDM Bushing PTFE Seat EPDM O-Ring EPDM 7 Pin SS DIMENSIONL DRWINGS DN0 - DN00 DN0 DN00 - DN00 B ØW Key SECTION B - B W SECTION - B h page h n-ød 7 E E h b FxF b BF DN00 - DN00 S087 C ISO TOP FLNGE DN FxF b b h h h E E n-ød FLNGE Weight ØW W NO. (kg) 00 0 7 0.. 0 9 8-8 F0-0..7. 9 7. 0 0. 89.8 0 8- F0-0 8.. 8 8 8 8 00 78 7.8. 7 0 - F0-0.. 8 8 8 0 90 0 8 7 7. 70 - F0-0. 8.8 8 8 8 7 90 9 0. 8. 0. 0 9 0 - F 7-8 0..8 0 00 8 77. 7. 87. 70 70 - F 7-8 0..8 0 0 0 9. 0.. 09. 8. 0 8 0/8 - F 7-8 0 8 97.8 0 00 9. 0 8... 7/99 - F 7-8 0. 79 0 00 7 8 8 70. 9. 790 7 7/70-0 F 0-0.7 7.8 8 Note: Flange dimensions may vary from S087. For gearbox dimensions, refer to pg 7. BF_V_0078.
Quality BF MTERIL SPECIFICTIONS & PRTS LIST NO. DESCRIPTION MTERIL Body Ductile Iron (fusion bonded epoxy coated) Disc SS Stem SS Bushing PTFE Seat EPDM Note: Flange dimensions may vary from S087. For gearbox dimensions, refer to pg 7. O-Ring EPDM 7 Pin SS DIMENSIONL DRWINGS DN700 DN800 - DN00 DN700 DN800 - DN000 SECTION - h n-ød Lifting Lug 7 h page E h E b FxF b BF DN700 - DN00 S087 C ISO TOP FLNGE DN FxF b b h h h E E n-ød FLNGE Weight NO. (kg) 700 9 9. 0 0 99.9 7. 90 8 770 0-0 F 00 8-8 0 70 0 90 0. 7. 99 97 8 0- F 00 8-8 0 0 800 8 7 7. 7. 00 98 87 0- F 00 8-8 0 900 0. 7 70 8 79 7 09 97 - F 00 8-8 7 798 0 9 000 0 700 800 7. 89. 7 080 - F 00 8-8 8 7 9 00 70 8 8 90.7 0. 0. 90 0 70 - F0 0 8-98 0 9 0 8 0 00 0 900 000 0. 7 700 0 - F 8-0 0 80 00 70 9 00 0. 0 F 8-0 00 80 00 00 00 0 0 88 7 90 8 70 0-9 F0 8-0 00 80 800 70 0 0 87.. 0 09 90 - F0 7 8-0 0 0 00 0 0 000 70 0 0 87 07. 8 0 0 0-8 F0 7 8-0 0 0 900 0 0 BF_V_0078.
7 BF - LEVER LEVER HNDLE & NOTCH PLTE Quality DIMENSIONL DRWINGS Figure. Lever handle l H H l l Note: lso available in stainless steel. Figure. Notch plate DN0 - DN80 DN00 - DN0 DN00 - DN00 CLOSE 8 CLOSE 8 7 CLOSE 0 OPEN OPEN 0 OPEN H H H page LEVER HNDLE NOTCH PLTE DN H H l l l FLNGE NO. H 0-80 9. 9 7. F0 00-0 9 9 F07. 00-0 78 0 8 9 F0. 00 7 7 8 F0. BUF_V_0078.
Quality BF - GB GERBOX DIMENSIONL DRWINGS DN0 - DN80 DN00 - DN00 DN700 DN800 - DN00 M M GERBOX DN0 - DN0 DN0 GERBOX DN00 - DN00 DN700 SECTION B - B l L B ØW W l l Key l B l DN00 - DN00 l8 l7 l DN800 - DN00 H H H page 7 GERBOX DN0 - DN00 ISO TOP FLNGE MODEL DN H L l l l Max. GB Drive Ratio Turns Weight M ØW W Torque (N.m) (Kg) DE- 0 0 0 7 0 :. 9 0 / 70 x -8 / -0 DE- 0 0 7 0 :. 9 0 / 70 x -8 / -0 DE- 80 0 0 7 0 :. 9 0 / 70 x -8 / -0 DE- 00 0 0 7 0 :. 9 70 x -0 DE- 0 0 7 0 :. 9 70 x -0 DE- 0 0 0 7 0 :. 9 70 x -0 DE-0 00 9 9 70 00 : 8.8 87 0 7x7 -.7. 9 7. DE-0 0 9 9 70 00 : 8.8 87 0 x - 8 8 8 8 DE-0 00 7 9 90 80 00 0:..8 87 0 x - 8 8 8 DE-0 0 7 9 90 80 00 0:..8 87 0. - 8 8 8 DE-80 00 97 9 9 78 8 800 80: 0 0. 8 7 0. -8 0 DE-80 0 97 9 9 78 8 800 80: 0 0. 8 7 0 8-8 0 MODEL DN H H l l l l l Max. GB Drive Ratio Turns Weight M ØW W Torque (N.m) (Kg) D-0/0 00 7 07 8 07 00 00 0: 0 7 8 7 0. -8 0 D-0/00 00 0 9 0 000 0: 0 7 8 0 0.7-8 D-0/800 700 8 7 7 7 97 8000 70: 7 8 00 8-8 0 D-0/800 800 8 7 7 7 97 8000 70: 7 8 00 8-8 0 D-0/00 900 8 09 0 79 0 9 0 000 78: 87 0 00 7 8-8 0 9 D-0/00 000 8 09 0 79 0 9 0 000 78: 87 00 8 8-8 9 D-0/00 00 8 0 0 000 80:. 0 0 98 0 8-0 8 0 BUF_V_0078.
BF DN0 - DN00 Quality page 8 TORQUE VLUE T PRESSURE CONDITION VLVE SIZE (DN) CLOSE-OFF TORQUE mm inch PN0 PN 0. 7 80 8 00 9 0 78 0 80 9 00 8 9 0 0 0 8 00 0 7 7 00 8 8 0 8 989 8 00 0 7 08 00 7 700 8 000 00 70 0 00 800 00 900 08 9 000 0 988 7 00 Note: Sizes DN00 and above available on request. CV VLUES FOR B SERIES Note: ll torque value in left chart were derived from the actual test data using water at 0 C. For torque used in other media, please contact VFI directly. Torques shown do not include safety factor. For actuator selection, VFI recommends: For EPDM, NBR, VITON seat, these valves be multiplied by. to. for single valve applications. Kindly note under certain conditions, hydrodynamic torque can meet or exceed seating and unseating torques. FLOWRTE FLOWRTE (%) 90 80 70 0 0 0 0 0 0 0 0 0 0 0 0 0 0 VLVE OPENING (%) 70 80 90 00 VLVE SIZE (DN) CV VLUE mm inch 0% 0% 0% 0% 0% 0% 70% 80% 90% 0 / 0.0 7 70 7 0 0. 90 / 0. 8 0 7 98 0 0 80 0. 9 70 8 7 0 00 0. 7 78 9 0 00 0.8 9 7 9 0 90 0 0 9 0 0 98 7 79 00 8 89 88 08 77 0 90 8 0 0 0 9 7 07 0 89 0 00 9 07 9 00 707 80 0 8 7 9 7 8 70 08 97 00 8 98 0 797 8 99 9 88 0 8 0 8 08 80 8 97 70 00 0 79 7 8 098 9 9 7908 0 7 9 0 7887 0 0 098 08 00 87 0 9989 8 7 9 0 0 78 7 997 9 07 000 700 8 0 70 99 00 08 899 89 70 0 9 00 8 0 7 8 800 87 79 87 788 0 9 87 80 80 97 987 80 9 7 7 77 900 0 0 0 0 79 08 97 089 87 000 0 8 8 89 07 9 08 8 970 00 0 09 900 708 70 0 7000 0890 700 00 8 80 00 000 00 900 0000 000 Note: Sizes DN00 and above available on request. BUF_V_0078.