About Backflow-Prevention Valves
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About Flanged Flow-Adjustment Valves
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Flanged Flow-Adjustment Valves
Also known as butterfly valves, these bolt to flanges for adjusting and regulating flow in flanged pipelines.
Wafer valves must be sandwiched between two flanges; they have tabs or unthreaded holes to help align the valve between the flanges.
Lug valves 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.
Lockable lever handles can be fixed in place with a padlock (not included).
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.
- Valve Type: Butterfly
- For Use With:
Painted Ductile Iron Disc: Air
Ductile Iron Disc: Water - Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
Ductile Iron Disc: API 609, MSS-SP-67
| 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. Range, °F | End-to-End Lg. | Each | |
Ductile Iron Body—Painted Ductile Iron Disc | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 5/16" | 125, 150 | 10" | 8 1/2" | 4 | 3/4" | No | 1,022 | 200 psi @ 180° F | 10° to 180° | 2 1/4" | 00000000 | 0000000 |
| 5 | 5/16" | 125, 150 | 10" | 8 1/2" | 4 | 3/4" | No | 1,022 | 200 psi @ 275° F | -30° to 275° | 2 1/4" | 00000000 | 000000 |
Ductile Iron Body—Ductile Iron Disc | |||||||||||||
| 5 | 1/4" | 125, 150 | 10" | 8 1/2" | 8 | 3/4" | No | Not Rated | 250 psi @ 180° F | -20° to 180° | 2 5/16" | 0000000 | 000000 |
| 5 | 1/4" | 125, 150 | 10" | 8 1/2" | 8 | 3/4" | No | Not Rated | 250 psi @ 225° F | -20° to 225° | 2 5/16" | 00000000 | 000000 |
- Valve Type: Butterfly
- For Use With: See table
- Specifications Met: See table
| Pipe Size | For Max. Shackle Dia. | For Use With | Pressure Class | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Size | Bolts Included | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Specifications Met | Each | |
Ductile Iron Body—Painted Ductile Iron Disc | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 5/16" | Air | 125, 150 | 10" | 8 1/2" | 8 | 3/4" | No | 1,022 | 200 psi @ 180° F | 10° to 180° | 2 1/4" | MSS-SP-67 | 00000000 | 0000000 |
| 5 | 5/16" | Air | 125, 150 | 10" | 8 1/2" | 8 | 3/4" | No | 1,022 | 200 psi @ 275° F | -30° to 275° | 2 1/4" | MSS-SP-67 | 00000000 | 000000 |
Ductile Iron Body—Ductile Iron Disc | |||||||||||||||
| 5 | 1/4" | Water | 125, 150 | 10" | 8 1/2" | 8 | 3/4" | No | Not Rated | 250 psi @ 225° F | -20° to 225° | 2 5/16" | API 609, MSS-SP-67 | 00000000 | 000000 |
| 5 | 1/4" | Oil | 125, 150 | 10" | 8 1/2" | 8 | 3/4" | No | Not Rated | 250 psi @ 180° F | -20° to 180° | 2 5/16" | API 609, MSS-SP-67 | 0000000 | 000000 |
Flanged Flow-Adjustment Valves for Chemicals
With seats that can stand up to aggressive and corrosive solutions, these valves are often used in chemical-processing applications. They bolt to flanges for adjusting and regulating flow in flanged pipelines.
Wafer valves must be sandwiched between two flanges; they have tabs or unthreaded holes to help align the valve between the flanges.
Lug valves 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.
Lockable lever handles have 10 flow-adjustment positions. The handle can be fixed in place with a padlock (not included).
Wheel handles open and close with multiple turns, providing fully adjustable flow.
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.
- Valve Type: Butterfly
- For Use With:
Painted Ductile Iron Disc:
Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene
316 Stainless Steel Disc:
Carbon Dioxide, Gasoline, Liquid Carbon Dioxide, Phosphoric Acid - Seat Material: Fluoroelastomer Rubber
- Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
316 Stainless Steel Disc: API 609, MSS-SP-67
| 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. Range, °F | End-to-End Lg. | Each | |
Ductile Iron Body—Painted Ductile Iron Disc | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 5/16" | 150, 125 | 10" | 8 1/2" | 4 | 7/8" | No | 1,022 | 200 psi @ 275° F | 10° to 275° | 2 1/4" | 000000000 | 000000000 |
Ductile Iron Body—316 Stainless Steel Disc | |||||||||||||
| 5 | 1/4" | 150, 125 | 10" | 8 1/2" | 8 | 7/8" | No | Not Rated | 250 psi @ 210° F | -20° to 210° | 2 5/16" | 0000000 | 000000 |
- Valve Type: Butterfly
- For Use With: See table
- Seat Material:
Ductile Iron Body: Fluoroelastomer Rubber
Cast Iron Body: PTFE-Lined Buna-N Rubber - Specifications Met:
Painted Ductile Iron Disc: MSS-SP-67
Ductile Iron Body—316 Stainless Steel Disc: API 609, MSS-SP-67
| Pipe Size | For Use With | 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. Range, °F | End-to-End Lg. | Each | |
Ductile Iron Body—Painted Ductile Iron Disc | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | Air, Carbon Dioxide, Diesel Fuel, Isopropyl Alcohol, Methyl Ethyl Ketone, Nitrogen, Oxygen, Toluene | 5/16" | 150, 125 | 10" | 8 1/2" | 8 | 7/8" | No | 1,022 | 200 psi @ 275° F | 10° to 275° | 2 1/4" | 000000000 | 000000000 |
Ductile Iron Body—316 Stainless Steel Disc | ||||||||||||||
| 5 | Carbon Dioxide, Gasoline, Liquid Carbon Dioxide, Phosphoric Acid | 1/4" | 150, 125 | 10" | 8 1/2" | 8 | 7/8" | No | Not Rated | 250 psi @ 210° F | -20° to 210° | 2 5/16" | 0000000 | 00000000 |
Flange-Mount Check Valves
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Disc Material: Bronze
- Seal Material: Buna-N Rubber
Sandwich these valves between two ANSI flanges for backflow prevention at a fraction of the weight of flanged check valves and a reduced pipeline footprint. ANSI flanges are sold separately. All valves open to allow flow in one direction and close when flow stops or reverses.
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 | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | For Flange Class | Each | |
Cast Iron Body | ||||||||
|---|---|---|---|---|---|---|---|---|
Flanged × Flanged | ||||||||
| 5 | 520 | 200 psi @ 70° F | 1.25 | -20° to 250° | 2 3/4" | 125 | 0000000 | 0000000 |
Flanged Check Valves
- For Use With: Air, Steam, Water
- Disc Material:
Pipe Size 4 and smaller: Bronze
Pipe Size 5 and larger: Iron - Seal Material: Bronze
Bolt these valves to ANSI flanges. They open to allow flow in one direction and close when flow stops or reverses. All have a removable cap that provides easy access to internal components for maintenance.
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 | Flow Coefficient (Cv) | Pressure Class | Max. Pressure | Max. Steam Pressure | Min. Opening Pressure | Temperature Range, °F | End-to-End Lg. | Flange OD | No. of Bolt Holes | Bolt Hole Size | Bolt Circle Dia. | Bolts Included | Includes | Each | |
Cast Iron Body | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Flanged × Flanged | |||||||||||||||
| 5 | 735 | 125 | 200 psi @ 70° F | 125 psi @ 353° F | 1 psi | -20° to 405° | 13" | 10" | 8 | 3/4" | 8 1/2" | No | Removable Cap | 0000000 | 000000000 |
Flange-Mount Check Valves for Drinking Water
- For Use With: Drinking Water
- Disc Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: EPDM Rubber
Sandwich these valves between ANSI flanges in drinking water pipelines. ANSI flanges are sold separately. Valves meet NSF/ANSI Standard 61, which designates them as safe to use with drinking water. All open to allow flow in one direction and close when flow stops or reverses.
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 | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | For Flange Class | Each | |
Iron Body | ||||||||
|---|---|---|---|---|---|---|---|---|
Flanged × Flanged | ||||||||
| 5 | 590 | 200 psi @ 300° F | 2 | 0° to 200° | 2 3/4" | 125, 150 | 000000 | 0000000 |