Torque Tables - SVF Flow Controls, Inc.
Torque Tables - SVF Flow Controls, Inc.
Torque Tables - SVF Flow Controls, Inc.
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SV F <strong>Flow</strong> <strong>Controls</strong>I N C O R P O R A T E D<strong>Torque</strong><strong>Tables</strong>01.10.2012VALVE OPERATING TORQUE TABLESDefinition of Valve <strong>Torque</strong>The purpose of this manual is to provide a simple yet accurate procedure for sizing actuators to <strong>SVF</strong> ballvalves. By properly sizing an actuator to a valve for a specific application, performance is guaranteedand economics are gained.VALVE TORQUE – Before the actuator can be sized for any given valve application, the amount of torquerequired by the valve must be determined. The operating torque of the ball valve is influenced by anumber of factors, some are design and material related, others are application (service condition)related. Design related factors include the type and material of the valve seats. Application factorsinclude system pressure, media, and frequency of operation.The torque required to operate a ball valve comes from two different areas within the valve, in both casesresulting from friction between metal and relatively soft sealing materials. The two areas in the valve thatcreate torque are the stem and ball/seat.STEM TORQUE is primarily dependent upon the tightness of the stem nut. Proper adjustment of the stemnut is important to valve performance and life. If the nut is too loose, the valve exhibits stem leakage; ifthe nut is too tight, the total torque requirement can be increased to the point where the actuator maynot be powerful enough to cycle the valve. The design of <strong>SVF</strong> ball valves is such that the stem torque isconstant, i.e. it is not influenced by operation conditions.BALL/SEAT TORQUE is created by the friction between the ball and seat and is very sensitive to serviceconditions. The “floating ball” design concept allows the system pressure to force the ball into thedownstream seat. The higher the system pressure, the harder the ball is forced into the seat and, therefore,the higher the torque. Since different seat materials have different coefficients of friction, the ball/seattorque also becomes a function of the seat materials being used.Valve torque is also a function of the media flowing through the valves. Abrasive media have a tendencyto increase the amount of friction between ball and seats, whereas some light oils, which provide additionallubricity, can reduce the amount of torque required.TORQUEOPENING TORQUERUNNING TORQUECLOSING TORQUECLOSEDOPENThe torque required to operate a ball valve is maximumat the beginning of opening. This is due to change in theball surface that is in contact with seats. The ball surfacecontact with the seats is greatest when the valve isclosed.A typical ball valve torque characteristic is demonstratedin the graph shown on the left. Closing torque is about80% of the opening or breakaway torque for the softerresilient seats. For harder seats such as PEEK, the openingand closing curves are nearly identical. <strong>Torque</strong> curvesin this publication are based on opening curves.<strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • 13560 Larwin Circle • Santa Fe Springs, CA 90670 • Tel: 1.800.783.7836 • FAX: 562.802.3114Engineering@<strong>SVF</strong>.net • Visit our website: www.<strong>SVF</strong>.net • © <strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • Specifications subject to change without notice
SV F <strong>Flow</strong> <strong>Controls</strong>I N C O R P O R A T E DVALVE OPERATING TORQUE TABLES<strong>Torque</strong><strong>Tables</strong>01.10.20121R8SIZE1/4"3/8"1/2"3/4"1"1-1/4"1-1/2"2"2-1/2"3"TFM1600 Seat<strong>Torque</strong>in-lbf454545451001302803605601000Nm55551115324163113SupraLon TM Seat<strong>Torque</strong>in-lbf505050501501754506009251500Nm666617205168105170in-lbf5050506090300375675--Delrin ® Seat<strong>Torque</strong>Nm666710344276--Series 8UHMWPE Seat<strong>Torque</strong>in-lbf50505075100150175275--Nm666811172031--B8SIZE1/2"3/4"1"1-1/4"1-1/2"2"2-1/2"TFM1600 Seat<strong>Torque</strong>in-lbf451001302803605601000Nm51115324163113SupraLon TM Seat<strong>Torque</strong>in-lbf501501754506009251500Nm617205168105170in-lbf6090300375675--Delrin ® Seat<strong>Torque</strong>Nm710344276--UHMWPE Seat<strong>Torque</strong>in-lbf75100150175275--Nm811172031--L8SIZE1/4"3/8"1/2"3/4"1"1-1/4"1-1/2"2"2-1/2"3"TFM1600 Seat<strong>Torque</strong>in-lbf454545451001302803605601000Nm55551115324163113SupraLon TM Seat<strong>Torque</strong>in-lbf505050501501754506009251500Nm666617205168105170in-lbf5050506090300375675--Delrin ® Seat<strong>Torque</strong>Nm666710344276--UHMWPE Seat<strong>Torque</strong>in-lbf50505075100150175275--Nm666811172031--Document: <strong>SVF</strong>_<strong>Torque</strong>_<strong>Tables</strong><strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • 13560 Larwin Circle • Santa Fe Springs, CA 90670 • Tel: 1.800.783.7836 • FAX: 562.802.3114Engineering@<strong>SVF</strong>.net • Visit our website: www.<strong>SVF</strong>.net • © <strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • Specifications subject to change without notice 1
SV F <strong>Flow</strong> <strong>Controls</strong>I N C O R P O R A T E DVALVE OPERATING TORQUE TABLES<strong>Torque</strong><strong>Tables</strong>01.10.20123C8SIZE1/4"3/8"1/2"3/4"1"1-1/4"1-1/2"2"TFM1600 Seat<strong>Torque</strong>in-lbf45454545100130280360Nm555511153241F8SIZE1/2"3/4"1"1-1/4"1-1/2"2"TFM1600 Seat<strong>Torque</strong>in-lbf4545100130280360Nm5511153241FB8SIZE1/4"3/8"1/2"3/4"1"1-1/4"1-1/2"2"2-1/2"Series 8continuedTFM1600 Seat<strong>Torque</strong>in-lbf4545451001302803605601000Nm5551115324163113N8SIZE1/4"3/8"1/2"3/4"1"1-1/4"1-1/2"2"2-1/2"3"SupraLon TM Seat<strong>Torque</strong>in-lbf505050501501754506009251500Nm666617205168105170BN8SIZE1/2"3/4"1"1-1/4"1-1/2"2"2-1/2"SupraLon TM Seat<strong>Torque</strong>in-lbf501501754506009251500Nm617205168105170RJ8SIZE1/4"3/8"1/2"3/4"1"1-1/4"1-1/2"2"2-1/2"3"TFM1600 Seat<strong>Torque</strong>in-lbf454545451001302803605601000Nm55551115324163113SupraLon TM Seat<strong>Torque</strong>in-lbf505050501501754506009251500Nm666617205168105170Document: <strong>SVF</strong>_<strong>Torque</strong>_<strong>Tables</strong><strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • 13560 Larwin Circle • Santa Fe Springs, CA 90670 • Tel: 1.800.783.7836 • FAX: 562.802.3114Engineering@<strong>SVF</strong>.net • Visit our website: www.<strong>SVF</strong>.net • © <strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • Specifications subject to change without notice 3
SV F <strong>Flow</strong> <strong>Controls</strong>I N C O R P O R A T E DVALVE OPERATING TORQUE TABLES<strong>Torque</strong><strong>Tables</strong>01.10.20124SB7SIZE1/2"3/4"1"1-1/2"2"2-1/2"3"4"TFM1600 Seat<strong>Torque</strong>in-lbf606010020025045013001400Nm7711232851147158SBC7SIZE1/2"3/4"1"1-1/2"2"2-1/2"3"4"TFM1600 Seat<strong>Torque</strong>in-lbf10014021049052090014001500Nm1116245559102158170CleanFLOW TMSB7FSIZE1/2"3/4"1"1-1/2"2"TFM1600 Seat<strong>Torque</strong>in-lbf6060100200250Nm77112328SBC7FSIZE1/2"3/4"1"1-1/2"2"TFM1600 Seat<strong>Torque</strong>in-lbf100140210490520Nm1116245559SB9SIZE1/2"3/4"1"1-1/2"2"2-1/2"3"4"TFM1600 Seat<strong>Torque</strong>in-lbf4453931952834347171080Nm561122324981122SBC9SIZE1/2"3/4"1"1-1/2"2"2-1/2"3"4"TFM1600 Seat<strong>Torque</strong>in-lbf4453931952834347171080Nm561122324981122Document: <strong>SVF</strong>_<strong>Torque</strong>_<strong>Tables</strong><strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • 13560 Larwin Circle • Santa Fe Springs, CA 90670 • Tel: 1.800.783.7836 • FAX: 562.802.3114Engineering@<strong>SVF</strong>.net • Visit our website: www.<strong>SVF</strong>.net • © <strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • Specifications subject to change without notice 4
SV F <strong>Flow</strong> <strong>Controls</strong>I N C O R P O R A T E DVALVE OPERATING TORQUE TABLES<strong>Torque</strong><strong>Tables</strong>01.10.20125TSB7SIZE1/2"3/4"1"1-1/2"2"2-1/2"TFM1600 Seat<strong>Torque</strong>in-lbf6060100200250450Nm7711232851TSBC7SIZE1/2"3/4"1"1-1/2"2"2-1/2"TFM1600 Seat<strong>Torque</strong>in-lbf100140210490520900Nm1116245559102CleanFLOW TMcontinuedTSB7FSIZE1/2"3/4"1"1-1/2"2"TFM1600 Seat<strong>Torque</strong>in-lbf6060100200250Nm77112328TSBC7FSIZE1/2"3/4"1"1-1/2"2"TFM1600 Seat<strong>Torque</strong>in-lbf100140210490520Nm1116245559H7SIZE1/2"3/4"1"1-1/2"2"in-lbf602003005501100Delrin ® Seat<strong>Torque</strong>Nm7233462124PEEK Seat<strong>Torque</strong>in-lbf Nm66 8220 25330 37605 681210 137P4SIZE1/2"3/4"1"in-lbf55190290Delrin ® Seat<strong>Torque</strong>Nm62233in-lbf61209300PEEK Seat<strong>Torque</strong>Nm72434HBEVSIZE1/4"3/8"1/2"3/4"1"1-1/2"2"in-lbf1501501502003205751000Delrin ® Seat<strong>Torque</strong>Nm171717233665113in-lbf1601601602203356101150PEEK Seat<strong>Torque</strong>Nm181818253869130Document: <strong>SVF</strong>_<strong>Torque</strong>_<strong>Tables</strong><strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • 13560 Larwin Circle • Santa Fe Springs, CA 90670 • Tel: 1.800.783.7836 • FAX: 562.802.3114Engineering@<strong>SVF</strong>.net • Visit our website: www.<strong>SVF</strong>.net • © <strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • Specifications subject to change without notice 5
SV F <strong>Flow</strong> <strong>Controls</strong>I N C O R P O R A T E DVALVE OPERATING TORQUE TABLES<strong>Torque</strong><strong>Tables</strong>01.10.20126EZ9SIZE1/4"3/8"1/2"3/4"1"1-1/4"1-1/2"2"TFM1600 Seat<strong>Torque</strong>in-lbf3535355080120250300Nm44469142834FS7SIZE3"4"TFM1600 Seat<strong>Torque</strong>in-lbf9871009Nm112114BZ9SIZE1/2"3/4"1"1-1/2"2"PTFE Seat<strong>Torque</strong>in-lbf Nm31 466 7113 13240 27260 29Flanged41Rev3SIZE1-1/2"2"3"4"6”TFM1600 Seat<strong>Torque</strong>in-lbf2082995989881328Nm243468112150SupraLon TM Seat<strong>Torque</strong>in-lbf25436872812091532Nm294282137173B41Rev3SIZE1/2"3/4"1"1-1/2"2"2-1/2"3"4"6"8"TFM1600 Seat<strong>Torque</strong>in-lbf7281130299371598988150841606500Nm8915344268112171470735SupraLon TM Seat<strong>Torque</strong>in-lbf91981723684607281209184652008060Nm101119425282137209588911Document: <strong>SVF</strong>_<strong>Torque</strong>_<strong>Tables</strong><strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • 13560 Larwin Circle • Santa Fe Springs, CA 90670 • Tel: 1.800.783.7836 • FAX: 562.802.3114Engineering@<strong>SVF</strong>.net • Visit our website: www.<strong>SVF</strong>.net • © <strong>SVF</strong> <strong>Flow</strong> <strong>Controls</strong>, <strong>Inc</strong>. • Specifications subject to change without notice 6
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