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.
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.
For technical drawings and 3-D models, click on a part number.
| 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 |
Flanged Flow-Adjustment Valves for Steam
- Valve Type: Butterfly
- For Use With: Steam
- Seal Material: PTFE Plastic
- Specifications Met: ANSI/ASME B16.34A
Rated for steam pressures up to 100 psi @ 400° F, these valves have PTFE seats for excellent temperature resistance. They bolt to flanges for adjusting and regulating flow in flanged pipelines. These valves are lug style, so they can be sandwiched between two flanges or bolted directly to a single flange for servicing one end of the pipeline without depressurizing the other side. They have threaded flange holes with a hole pattern that matches ANSI flanges of the same pipe size.
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 | Pressure Class | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Size | Bolts Included | Flow Coefficient (Cv) | Max. Steam Pressure | Temp. Range, °F | End-to-End Lg. | Each | |
Powder-Coated Epoxy Carbon Steel Body | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Powder-Coated Epoxy CF8M Stainless Steel Disc | ||||||||||||
| 2 | 150 | 6" | 4 3/4" | 4 | 3/4" | No | 92 | 100 psi @ 400° F | -20° to 450° | 1 11/16" | 000000 | 000000000 |
| 3 | 150 | 7 1/2" | 6" | 4 | 3/4" | No | 260 | 100 psi @ 400° F | -20° to 450° | 1 7/8" | 000000 | 00000000 |