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DFARS Specialty Metals
Long-Life Flanged Flow-Adjustment Valves
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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 Body—316 stainless steel valves are more corrosion resistant than carbon steel valves.
Flow Coefficient (Cv)—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 @ Temp. | Max. Steam Pressure @ Temp. | Temp. Range, ° F | End-to-End Lg. | Valve Type | For Use With | Specs. Met | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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" | Butterfly | Water, Air, Argon, Helium, Krypton, Neon, Steam, Xenon | API Std 609, ASME B16.34, ASME B16.5, ANSI/MSS SP-25, MSS SP-61, MSS SP-68 | 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" | Butterfly | Water, Air, Argon, Helium, Krypton, Neon, Steam, Xenon | API Std 609, ASME B16.34, ASME B16.5, ANSI/MSS SP-25, MSS SP-61, MSS SP-68 | 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" | Butterfly | Water, Air, Argon, Helium, Krypton, Neon, Steam, Xenon | API Std 609, ASME B16.34, ASME B16.5, ANSI/MSS SP-25, MSS SP-61, MSS SP-68 | 0000000 | 00000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Flanged Flow-Adjustment Valves for Steam
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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)—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. | Temp. Range, ° F | End-to-End Lg. | Valve Type | For Use With | Seal Material | Specs. Met | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Powder-Coated Carbon Steel Body | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Powder-Coated 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" | Butterfly | Steam | PTFE | ASME B16.34 | 000000 | 000000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3 | 150 | 7 1/2" | 6" | 4 | 3/4" | No | 260 | 100 psi @ 400° F | -20 to 450 | 1 7/8" | Butterfly | Steam | PTFE | ASME B16.34 | 000000 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
