About Gradual On/Off Valves
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About On/Off Valves
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Flanged On/Off Valves
Bolt these valves to ANSI flanges. Their lockable lever handle can be fixed in place using a padlock (not included). All have four mounting holes to install an actuator, so you can convert them from manual to automatic valves.
Steel valves stand up to corrosion better than cast iron valves. 316 stainless steel valves are more corrosion resistant than cast iron and steel valves.
Full-port valves do not restrict flow. Standard-port valves slightly restrict flow.
Pressure class 150 valves are standard and work for most low-pressure applications.
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.
- Valve Type: Ball
- For Use With: Air, Oil, Steam, Water
- Seal Material: PTFE Plastic
- Specifications Met: ANSI/ASME B16.10, ANSI/ASME B16.5, MSS-SP-72
Bolts | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Pressure Class | Flange OD | Circle Dia. | No. of Holes | Hole Size | Included | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temp. Range, °F | End-to-End Lg. | Each | |
Flanged × Flanged with Full Port | |||||||||||||
| 1/2 | 125 | 3 1/2" | 2 3/8" | 4 | 0.62" | No | 26 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 4 1/4" | 0000000 | 0000000 |
| 3/4 | 125 | 3 7/8" | 2 3/4" | 4 | 0.62" | No | 50 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 4 5/8" | 0000000 | 000000 |
| 1 | 125 | 4 1/4" | 3 1/8" | 4 | 0.62" | No | 100 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 5" | 0000000 | 000000 |
| 1 1/2 | 125 | 5" | 3 7/8" | 4 | 0.62" | No | 260 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 6 1/2" | 00000000 | 000000 |
| 2 | 125 | 6" | 4 3/4" | 4 | 0.75" | No | 500 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 7" | 0000000 | 000000 |
| 2 1/2 | 125 | 7" | 5 1/2" | 4 | 0.75" | No | 750 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 7 1/2" | 0000000 | 000000 |
| 3 | 125 | 7 1/2" | 6" | 4 | 0.75" | No | 1,245 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 8" | 0000000 | 000000 |
| 4 | 125 | 9" | 7 1/2" | 8 | 0.75" | No | 2,500 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 9" | 0000000 | 000000 |
| 6 | 125 | 11" | 9 1/2" | 8 | 0.88" | No | 5,470 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 10 1/2" | 0000000 | 00000000 |
| 8 | 125 | 13 1/2" | 11 3/4" | 8 | 0.88" | No | 4,150 | 200 psi @ 150° F | 125 psi @ 215° F | -20° to 350° | 11 1/2" | 00000000 | 00000000 |
- Valve Type: Ball
- For Use With: Air, Oil, Steam, Water
- Seal Material: PTFE Plastic
- Specifications Met: ANSI/ASME B16.10, ANSI/ASME B16.5
Bolts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pressure Class | Flange OD | Circle Dia. | No. of Holes | Hole Size | Included | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temp. Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | |
Flanged × Flanged with Full Port | ||||||||||||||
| 1/2 | 150 | 3 1/2" | 2 3/8" | 4 | 0.62" | No | 26 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 4 1/4" | 000000000 | 0000000 |
| 3/4 | 150 | 3 7/8" | 2 3/4" | 4 | 0.62" | No | 50 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 4 5/8" | 000000000 | 000000 |
| 1 | 150 | 4 1/4" | 3 1/8" | 4 | 0.62" | No | 94 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 5" | 00000000 | 000000 |
| 1 1/2 | 150 | 5" | 3 7/8" | 4 | 0.62" | No | 260 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 6 1/2" | 00000000 | 000000 |
| 2 | 150 | 6" | 4 3/4" | 4 | 0.75" | No | 480 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 7" | 00000000 | 000000 |
| 2 1/2 | 150 | 7" | 5 1/2" | 4 | 0.75" | No | 750 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 7 1/2" | 00000000 | 000000 |
| 3 | 150 | 7 1/2" | 6" | 4 | 0.75" | No | 1,150 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 8" | 00000000 | 000000 |
| 4 | 150 | 9" | 7 1/2" | 8 | 0.75" | No | 2,110 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 9" | 00000000 | 000000 |
| 6 | 150 | 11" | 9 1/2" | 8 | 0.88" | No | 5,070 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 15 1/2" | 000000000 | 00000000 |
| 8 | 150 | 13 5/8" | 11 3/4" | 8 | 0.88" | No | 9,330 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 18" | 000000000 | 00000000 |
- Valve Type: Ball
- For Use With: Air, Oil, Steam, Water
- Seal Material: PTFE Plastic
- Specifications Met: ANSI/ASME B16.10, ANSI/ASME B16.34, ANSI/ASME B16.5
Bolts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pressure Class | Flange OD | Circle Dia. | No. of Holes | Hole Size | Included | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temp. Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Each | |
Flanged × Flanged with Full Port | ||||||||||||||
| 1/2 | 150 | 3 1/2" | 2 3/8" | 4 | 0.62" | No | 26 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 4 1/4" | 00000000 | 0000000 |
| 3/4 | 150 | 3 7/8" | 2 3/4" | 4 | 0.75" | No | 50 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 4 5/8" | 00000000 | 000000 |
| 1 | 150 | 4 1/4" | 3 1/8" | 4 | 0.62" | No | 94 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 5" | 00000000 | 000000 |
| 1 | 300 | 4 3/8" | 3 1/8" | 4 | 0.62" | No | 94 | 720 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 5" | 000000000 | 000000 |
| 1 1/2 | 150 | 5" | 3 7/8" | 4 | 0.62" | No | 260 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 6 1/2" | 00000000 | 000000 |
| 2 | 150 | 6" | 4 3/4" | 4 | 0.75" | No | 480 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 7" | 00000000 | 000000 |
| 2 | 300 | 6" | 4 3/4" | 4 | 0.75" | No | 480 | 720 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 7" | 000000000 | 000000 |
| 2 1/2 | 150 | 7" | 5 1/2" | 4 | 0.75" | No | 750 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 7 1/2" | 00000000 | 00000000 |
| 3 | 150 | 7 1/2" | 6" | 4 | 0.75" | No | 1,150 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 8" | 00000000 | 00000000 |
| 4 | 150 | 9" | 7 1/2" | 8 | 0.75" | No | 2,110 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 9" | 00000000 | 00000000 |
| 6 | 150 | 11" | 9 1/2" | 8 | 0.88" | No | 5,070 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 15 1/2" | 000000000 | 00000000 |
| 8 | 150 | 13 5/8" | 11 3/4" | 8 | 0.88" | No | 9,330 | 275 psi @ 100° F | 100 psi @ 365° F | 0° to 500° | 28 | 18" | 000000000 | 00000000 |
Flanged × Flanged with Standard Port | ||||||||||||||
| 1 | 150 | 4 3/8" | 3 1/8" | 4 | 0.62" | No | 30 | 275 psi @ 100° F | 200 psi @ 365° F | 0° to 450° | 28 | 5" | 000000000 | 000000 |
| 2 | 150 | 6" | 4 3/4" | 4 | 0.75" | No | 120 | 275 psi @ 100° F | 200 psi @ 365° F | 0° to 450° | 28 | 7" | 000000000 | 000000 |
| 6 | 150 | 11" | 9 1/2" | 8 | 0.88" | No | 1,020 | 275 psi @ 100° F | 200 psi @ 365° F | 0° to 450° | 28 | 10 1/2" | 00000000 | 00000000 |
| 8 | 150 | 13 1/2" | 11 3/4" | 8 | 0.88" | No | 1,800 | 275 psi @ 100° F | 200 psi @ 365° F | 0° to 450° | 28 | 11 1/2" | 00000000 | 00000000 |
Compact Flanged On/Off Valves
- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
- Seal Material: PTFE Plastic
- Specifications Met: ASME B16.34, ASME B16.5, ASME B31.1
Also known as wafer ball valves, these combine the slim body of a butterfly valve with the high flow rates of a flanged ball valve. Bolt these valves to ANSI flanges—they meet ASME standards for dimensions, material, and pressure-temperature rating. They are full port, so they do not restrict flow.
316 stainless steel valves are more corrosion resistant than 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.
For technical drawings and 3-D models, click on a part number.
Bolts | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pressure Class | Flange OD | Circle Dia. | No. of Holes | Hole Thread Size | Included | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Actuator Mounting Hole Thread Size | Each | |
Steel Body | |||||||||||||||
Flanged × Flanged | |||||||||||||||
| 1 | 150 | 4 1/4" | 3 1/8" | 4 | 1/2"-13 | No | 74.6 | 285 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 1 13/16" | M5 | 00000000 | 0000000 |
| 1 1/2 | 150 | 5" | 3 7/8" | 4 | 1/2"-13 | No | 201.3 | 285 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 2 1/2" | M6 | 00000000 | 000000 |
| 2 | 150 | 6" | 4 3/4" | 4 | 5/8"-11 | No | 348.6 | 285 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 3 1/4" | M6 | 00000000 | 000000 |
| 2 1/2 | 150 | 7" | 5 1/2" | 4 | 5/8"-11 | No | 631.4 | 285 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 4 1/16" | M8 | 00000000 | 000000 |
| 3 | 150 | 7 1/2" | 6" | 4 | 5/8"-11 | No | 1,009.5 | 285 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 4 13/16" | M8 | 00000000 | 000000 |
| 4 | 150 | 9" | 7 1/2" | 8 | 5/8"-11 | No | 1,577.3 | 285 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 6" | M10 | 00000000 | 000000 |
| 6 | 150 | 11" | 9 1/2" | 8 | 3/4"-10 | No | 4,247.5 | 285 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 9 1/8" | M12 | 00000000 | 00000000 |
316 Stainless Steel Body | |||||||||||||||
Flanged × Flanged | |||||||||||||||
| 1/2 | 150 | 3 1/2" | 2 3/8" | 4 | 1/2"-13 | No | 22.2 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 1 3/8" | M5 | 00000000 | 000000 |
| 3/4 | 150 | 3 7/8" | 2 3/4" | 4 | 1/2"-13 | No | 40.5 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 1 9/16" | M5 | 00000000 | 000000 |
| 1 | 150 | 4 5/16" | 3 1/8" | 4 | 1/2"-13 | No | 74.6 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 1 13/16" | M5 | 0000000 | 000000 |
| 1 1/4 | 150 | 4 5/8" | 3 1/2" | 4 | 1/2"-13 | No | 120.1 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 2 1/8" | M5 | 00000000 | 000000 |
| 1 1/2 | 150 | 5 1/8" | 3 7/8" | 4 | 1/2"-13 | No | 201.3 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 2 1/2" | M6 | 0000000 | 000000 |
| 2 | 150 | 6" | 4 3/4" | 4 | 5/8"-11 | No | 348.6 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 3 1/4" | M6 | 0000000 | 000000 |
| 2 1/2 | 150 | 7 5/16" | 5 1/2" | 4 | 5/8"-11 | No | 631.4 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 4 1/16" | M8 | 0000000 | 000000 |
| 3 | 150 | 7 1/2" | 6" | 4 | 5/8"-11 | No | 1,009.5 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 4 13/16" | M8 | 0000000 | 00000000 |
| 4 | 150 | 9" | 7 1/2" | 8 | 5/8"-11 | No | 1,577.3 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 6" | M10 | 0000000 | 00000000 |
| 6 | 150 | 11" | 9 1/2" | 8 | 3/4"-10 | No | 4,247.5 | 275 psi @ 100° F | 50 psi @ 295° F | 0° to 365° | 28 | 9 1/8" | M12 | 00000000 | 00000000 |
Threaded Gradual On/Off Valves for Boiler Blow-Off
Prevent boiler scale deposits and sediment buildup with these valves that meet ASME standards for boiler drainage applications. Also known as gate valves, they gradually open and close to prevent system damage from suddenly starting or stopping flow.
Valves with a wheel handle open and close with multiple turns, providing more controlled, shock-resistant flow than valves with a lever handle. Valves with a lever handle open and close faster than valves with a wheel handle.
Valves with a nonrising stem fit well in low-clearance places since the handle doesn’t move up when the valve opens.
Cast iron valves absorb vibration, reducing noise from your industrial boiler. Steel valves resist corroding from the dirt and particles that come out of industrial boilers better than cast iron valves.
Use repair kits to replace worn-out seals.
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: Gate
- For Use With: Water
- Packing Material: EPDM Rubber
- Specifications Met: ASME B16.34, ASME B16.5, ASME B31.1, ASME BPVC.I
Valves | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
O'all | Repair Kits | |||||||||
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | Each | ||
NPT Female | ||||||||||
| 1 1/4 | 60 | 250 psi @ 350° F | 35° to 350° | 3 5/8" | 13" | 9" | 0000000 | 000000000 | 00000000 | 0000000 |
| 1 1/2 | 108 | 250 psi @ 350° F | 35° to 350° | 4 1/2" | 13" | 9 1/2" | 0000000 | 00000000 | 00000000 | 000000 |
| 2 | 132 | 250 psi @ 350° F | 35° to 350° | 4 5/8" | 14" | 9 11/16" | 0000000 | 00000000 | 00000000 | 000000 |
- Valve Type: Gate
- For Use With: Water
- Packing Material: EPDM Rubber
- Specifications Met: ASME B16.34, ASME B16.5, ASME B31.1, ASME BPVC.I
Valves | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
O'all | Repair Kits | |||||||||
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | Each | ||
NPT Female | ||||||||||
| 1 | 40 | 250 psi @ 350° F | 35° to 350° | 3 5/8" | 14 1/4" | 4 7/16" | 0000000 | 0000000 | 00000000 | 0000000 |
| 1 1/4 | 60 | 250 psi @ 350° F | 35° to 350° | 3 5/8" | 13 1/16" | 4 3/4" | 0000000 | 000000 | 00000000 | 000000 |
| 1 1/2 | 108 | 250 psi @ 350° F | 35° to 350° | 4 1/2" | 20 3/8" | 5 13/16" | 0000000 | 000000 | 00000000 | 000000 |
| 2 | 132 | 250 psi @ 350° F | 35° to 350° | 4 5/8" | 21 5/16" | 6 1/16" | 0000000 | 00000000 | 00000000 | 000000 |
- Valve Type: Gate
- For Use With: Water
- Packing Material: Graphite/TFE Plastic Blend
- Specifications Met: ASME B16.34, ASME B16.5, ASME B31.1, ASME BPVC.I
Valves | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
O'all | Repair Kits | |||||||||
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | Each | ||
NPT Female | ||||||||||
| 1 1/4 | 60 | 490 psi @ 750° F | 35° to 750° | 5 1/4" | 13 1/8" | 5 1/4" | 00000000 | 000000000 | 00000000 | 0000000 |
| 1 1/2 | 108 | 490 psi @ 750° F | 35° to 750° | 6" | 17 11/16" | 6" | 00000000 | 00000000 | 00000000 | 000000 |
| 2 | 132 | 490 psi @ 750° F | 35° to 750° | 6 1/4" | 23 9/16" | 6 1/4" | 00000000 | 00000000 | 00000000 | 000000 |