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About Flanged Flow-Adjustment Valves
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Extended-Life Flanged Flow-Adjustment Valves
- Valve Type: Butterfly
- For Use With: Water, Air, Argon, Helium, Krypton, Neon, Steam, Xenon
- Specifications Met: API 609, ASME B16.34, ASME B16.5, MSS-SP-25, MSS-SP-61, MSS-SP-68
For a longer service life than other flanged flow-adjustment valves, these are designed to open and close with minimal wear on internal components. They bolt to flanges for adjusting and regulating flow in flanged pipelines. Fix the lockable lever handle in place using a padlock (not included) with a shackle diameter up to 5/16”. Valves are wafer style, so they must be sandwiched between two flanges; all have grooves to help align the valve between the flanges.
316 stainless steel valves are more corrosion resistant than carbon steel valves.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
| Pipe Size  | For Max. Shackle Dia. | Pressure Class | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Size | Bolts Included | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temp. Range, °F | End-to-End Lg. | Each | |
Carbon Steel Body—316 Stainless Steel Disc | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 5/16" | 150 | 7 1/2" | 6" | 4 | 3/4" | No | 228 | 285 psi @ 100° F | 50 psi @ 295° F | -20° to 500° | 1 15/16" | 0000000 | 000000000 |
316 Stainless Steel Body—316 Stainless Steel Disc | ||||||||||||||
| 3 | 5/16" | 150 | 7 1/2" | 6" | 4 | 3/4" | No | 228 | 285 psi @ 100° F | 50 psi @ 295° F | -100° to 500° | 1 15/16" | 0000000 | 00000000 |
| 4 | 5/16" | 150 | 9" | 7 1/2" | 8 | 3/4" | No | 451 | 285 psi @ 100° F | 50 psi @ 295° F | -100° to 500° | 2 1/8" | 0000000 | 00000000 |