MULTI-ORIFICE VALVE Taylor Valve MD SERIES PRODUCTION CHOKES Gas Lift Water Injection Enhanced Oil Recovery Throttling Valve High DP Valve Motor Operated Valve Manual and Automated Applications JAN00-TVT-OKC
Taylor Valve SERIES MD MOV Choke Principle of Operation Taylor Valve Technology Multi Orifice Valve design principle provides precision control. The two adjacent internal discs each contain two precision orifices. Full Open Throttling Closed When the holes on both discs are aligned the valve is Full Open Position. When the front disc is rotated, changing the alignment and relationship to the fixed back disc, the flow area and orifice size are affected, the result either increase or decrease in flow. When the front disc o is rotated a full 0 (one quarter turn), the valve is in the full closed position. The discs are lapped to within two light bands of flatness (+/-.0000 ) to achieve positive shut off and maintain precise control. The fixed back disc is held perpendicular to the flow. The front disc floats against the back disc and seeks a mating surface promoting a positive seal. The differential pressure across the upstream disc and stabilizes the control surfaces. Vibration, noise or fatigues normally associated with loose or unsupported parts is eliminated.no control surfaces are introduced into the orifice, providing a clear center line for flow. The valves are rated for shut-off at ANSI Class III or IV depending on the style of valve and trim used. The orifices of the standard disc expose a small control surface profile to the fluid stream reducing wear. The multi-orifice design produces near linear flow characteristics. The low torque and quarter-turn design of Taylor Valve Technology s Multi-orifice Valves allows for a variety of actuation options; manual, pneumatic, hydraulic, or electric. page
SERIES MD MOV Choke Taylor Valve FEATURES Accurate control - 0 Degree rotation from Full Off to Full On Bolted Bonnet - Safety Bonnet is bolted into the body, it avoids the well-known risks of corrosion, cross threading, galling of threaded type connection in production environments. Safety Body Pressure Bleed Valve - The potential for buildup or trapped pressure is eliminated by the installation of a high pressure stainless steel bleed valve installed in accordance with the requirements of APIA. Extended Mean time between Service - Robust design and liberal application of hardened materials, efficien flow-geometry means the valves offer maximum production potential and minimum service requirements. Easy maintenance - Choke Valves are designed with special actuator mounting systems so the choke can be maintained. Optional features - Choke Valves can have trims and actuators custom designed for specific requirements, such as, special trims for noise reduction and sand control, reduced port and maximum orifice trims are available for very high pressure or minimum pressure loss for a declining field APPLICATIONS Well Site Automation Water Injection Control Valve CO Injection Control Valve Pump Bypass Pump Startup Applicatiob Picture Gas Lift Injection Control Blow Down and Dump Valve Remote Control for directional drilling page
Taylor Valve SERIES MDI Multi-Orifice Choke MDI Valve Design Features Optional Actuator MDI Positive Bean Choke Fully Guided Stem reduces imblance and vibration Mounting Bracket and adapter Redundant Bonnet Seals Bleed Valve to allow pressure to be released Protective cage Cross section of wear resistant material to extend service life Redundant Stem Seals with Backup rings Control Discs provide ASME Class III/IV Shut off Precision Orifices Manual MDI page
MODEL MDI MOV Choke Parts Diagram Taylor Valve Key Description Qty EXPLODED VIEW 0 0 Handle Lock Nut Turning Hub Calibration Label Bonnet Thrust Bearing Retainer Spring Backup Ring Turning Fork Dowel Pin Control Disc Dowel Pin Cage Wear Sleeve Bleed Valve Body Bonnet Bolts Data Plate Drive Screw 0 0 0 page
Taylor Valve MODEL MDIS MOV Steam Choke Available Sizes Inch Inch Inch Packing Gland Adjustment Graphite Bonnet Seal Tungsten Carbide Disc Crush Seal Stainless Steel Turning Fork Detachable Handle and Hub Cartridge Assembly Design Bolted Bonnet Studs and Nuts Varity of end Connection Wear Sleeve Inch Flanged MDIS page
MODEL MDIS MOV Steam Choke Parts Diagram Taylor Valve Key Description Qty 0 0 Handle Lock Nut Turning Hub Bonnet Bolts Packing Gland Nut Packing Bonnet Dowel Pin Retainer Spring Bonnet Gasket Thrust Bearing Turning Fork Dowel Pins Control Disc Dowel Pin Cage Bonnet Bolts Wear Sleeve Body Data Plate Drive Screws 0 EXPLODED VIEW Inch Inch Inch 0 page
Taylor Valve MODEL MDA MOV Production Choke Available Sizes Inch Inch Redundant Stem Seals with Backup rings Fully Guided Stem reduces imblance and vibration MDA Positive Bean Choke Redundant Bonnet Seals Bleed Valve to allow pressure to be released Control Discs provide ASME Class III/IV Shut off Protective cage Cross section of wear resistant material to extend service life Automated MDI page
MODEL MDA MOV Choke Parts Diagram Taylor Valve EXPLODED VIEW Inch Inch Inch Key Description Qty Key Description Qty 0 Handle Lock Nut Turning Hub Calibration Label Bonnet Thrust Bearing Retainer Spring Backup Ring Turning Fork Dowel Pin 0 Control Disc Dowel Pin Cage Wear Sleeve Bleed Valve Body Bonnet Bolts Data Plate Drive Screw 0 0 0 page
Taylor Valve MODEL MDAS MOV Steam Choke Available Sizes Inch Inch Packing Gland Adjustment Detachable Handle and Hub Studs and Nuts Fully Guided Stainless Steel Turning Fork reduces imbalance and vibration Graphite Bonnet Seal Graphite Packing Set Tungsten Carbide Discs provide ASME Class III/IV Shut off Crush Seal Protective cage Cross section of wear resistant material to extend service life Varity of end Connection Inch Flanged MDAS page 0 The assembly and disassembly of the MDAS is exactly the same as the MDIS and the part key numbers are the same to order parts refer to page for identifying numbers
MD Series MOV Choke Part Numbering System Taylor Valve MD - - - - - - - - Valve Type I Inline Body IS Inline Steam Body A Angle Body AS Angle Steam Body NOMINAL BORE Inch Inch Inch SERVICE 00 STANDARD 0 NACE 0 STEAM HIGH TEMP 0 WET CO- 0 LOW TEMP/SOUR 0 FULL SS 0 SALT WATER TYPE ACTUATOR 0 MANUAL HANDLE MANUAL GEAR ELECTRIC PNEUMATIC HYDRAULIC CS ACTUATOR BRACKET SS ACTUATOR BRACKET POSITIVE BEAN END CONNECTIONS 0 FNPT 0 FNPT 0 BUTT WELD SCH0 0 BUTT WELD SCH0 0 ANSI 00# RFF 0 ANSI 00# RTJ ANSI 00# RFF ANSI 00# RTJ ANSI 00# RFF ANSI 00# RTJ BUTT WELD XXH NATIONAL GROOVE ANSI 00# RFF ANSI 00# RTJ VICTAULIC ES ANSI 00# RTJ ANSI 00# RTJ NATIONAL GROOVE ANSI 00# RTJ FNPT ANSI 00# RFF ANSI 00# RFF ½ SOCKET WELD NOMINAL BORE SERVICE ACTUATOR END CONNECTIONS ANSI 00# RTJ ANSI 00# RTJ ANSI 00# RTJ ANSI 00# RFF ANSI 00# RFF ANSI 00# RFF ANSI 00# RFF SOCKET WELD ANSI 00# RFF VICTAULIC ES ANSI 00# RTJ BUTT WELD SCH0 0 SOCKET WELD ANSI 00# RTJ ANSI 00# RFF 0 SOCKET WELD BUTT WELD SCH0 BUTT WELD SCH0 VICTAULIC ES NOTE: For many other, and connections consult factory DISC SIZE DISC/WEAR SLEEVE MATERIAL BODY MATERIAL SEAL SEAL MATERIAL 00 SPECIAL 0 BUNA N / NBR 0 POLYURTHANE 0 EPT/ EPOM 0 FLUOROCARBON 0 METAL/FIBER 0 NEOPREME / CR 0 PEROXIDE CURED NBR 0 STEAM SEALS 0 PTFE BODY MATERIAL 0 CARBON STEEL 0 COATED STEEL 0 0 STAINLESS STEEL 0 DUPLEX STAINLESS DISC/SLEEVE 00 CERAMIC / - H00 SS 0 CARBIDE / - H00 SS 0 CARBIDE / STELLITE 0 CERAMIC / STELLITE 0 CARBIDE / CARBIDE CERAMIC / NO SLEEVE CARBIDE / NO SLEEVE POS BEAN / - H00 SS DISC SIZE 0 () / RND PORTS 0 () / RND PORTS 0 () / RND PORTS 0 () / RND PORTS 0 () / RND PORTS 0 () / PIE PORTS 0 () / RND PORTS 0 () / RND PORTS 0 ().0 PIE PORTS 0 () - / RND PORTS () - / RND PORTS NOTE: For positive bean sizes consult factory page
Taylor Valve ESTIMATOR FOR FLOW RATE NOMOGRAPH FOR WATER BEAN SIZE IN THS 00 PRESSURE DROP (DP) ACROSS CHOKE (PSI) 0000 000 000 000 000 000 000 000 00 00 00 00 00 00 00 0 0 0 0 0 0 0 DOUBLE ORIFICE CHOKE WATER FLOW IN BBL/DAY 0000 0000 0000 000 000 00 00 00 00 00 0 0 00000 0000 0000 0000 000 000 000 000 000 00 00 00 0 0 0 00 00 00 00 00 00 00 000 0 0 0 0 0 0 0 EXAMPLE PRESSURE DROP DP 00 PSI, WATER FLOW RATE 000 B/D FOR SINGLE ORIFICE CHOKE OR 0 B/D DOUBLE ORIFICE CHOKE READ BEAN SIZE 0 NOTE: P-P = DP WHEN P = UPSTREAM PRESSURE P = DOWNSTREAM PRESSURE DP = PRESSURE DROP ACROSS THE CHOKE SINGLE ORIFICE CHOKE 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 page
ESTIMATOR FOR FLOW RATE Taylor Valve NOMOGRAPH FOR GAS EXAMPLE UPSTREAM PRESSURE OF 0 PSI, BEAN SIZE 0, AND GAS FLOW RATE OF 00 MCF PER DAY NOTE: UPSTREAM PRESSURE MUST BE TWO TIMES DOWNSTREAM PRESSURE (KNOWN AS CRITICAL FLOW) UPSTREAM PRESSURE (PSI) 000 000 000 000 00 00 00 00 00 00 00 00 00 0 0 0 0 0 00 0 0 0 0 NATURAL GAS IN MSCFD 00000 0000 0000 0000 0000 000 000 000 0000 000 000 00 000 00 00 00 00 00 00 0 00 0 0 0 0 0 0 0 BEAN SIZE IN THS 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 page
Taylor Valve Sizing Information Flow Equations Liquid A. Non-Choked Turbulent Flow C = Q V S G P -P B. Choked Turbulent Flow A. Non-Choked Turbulent Flow C = V C = V Gas W.Y Q 0 P Y V xp S G T z x Mass Flow Rate Volumetric Flow Rate C = V Where: Q F L P = Inlet Pressure (psia) P = Outlet Pressure (psia) Q = Flow Rate (SCF/D) F L = Liquid Pressure Recovery Factor F = Liquid Critical Pressure Ratio Factor f P = F P VC f V 0.-0. S =Specific Gravity G S G P - P VC P = Pressure at Vena Contracta VC P =Liquid Vapor Pressure V P =Liquid Ctrical Pressure C P V P C ½ B. Choked Turbulent Flow Substitute x for x in the above Equations t Where: W = Flow Rate (lbs/hr) Y = Expansion Factor - Limits (.0>= Y <= 0.) x = ÄP/P ( Pressure Drop Ratio) Q = Flow Rate (SCFD) o T = Temperature ( R ) ÄP = P -P V = Specific Volume (ft /lb) P = Inlet Pressure (psia) P = Outlet Pressure (psia) x = Critical Pressure Drop Ratio t S G = Specific Gravity z = Compressibility Factor Sizing Data for Liquids P - Inlet Pressure (psia, psig, Bara, kpaa) P - Outlet Pressure ( psia, psig, Bara, kpaa) Q L - Flow (bbl/d, gal/min, lbs/hr, kg/hr, m/d ) SG - Specific Gravity of Liquid o o o o T - Temperature ( F, C, R, K ) Sizing Data For Gas Service P - Inlet Pressure (psia, psig, Bara, kpaa) P - Outlet Pressure ( psia, psig, Bara, kpaa) Q G - Flow ( scf/d, m /hr, kg/hr ) S G - Specific Gravity o o o o T - Temperature ( F, C, R, K ) Phase Flow P - Inlet Pressure (psia, psig, Bara, kpaa) P - Outlet Pressure ( psia, psig, Bara, kpaa) Q G - Flow (scf/d, m /hr, kg/hr ) Q L - Flow (bbl/d, gal/min, lbs/hr, kg/hr, m/d ) SG G - Specific Gravity of Gas SG L - Specific Gravity of Liquid o o o o T - Temperature ( F, C, R, K ) Co ( Gaseous ) P - Inlet Pressure (psia, psig, Bara, kpaa) P - Outlet Pressure ( psia, psig, Bara, kpaa) Q G - Flow ( scf/d, m /hr, kg/hr ) P V - Vapor Pressure (Function of Temperature) V - Specific Volume (Function of Temperature and P Pressure) SG G - Specific Gravity of Gas o o o o T - Temperature ( F, C, R, K ) page