Connection Style Connection Style |
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Body Material Body Material |
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Valve Type Valve Type |
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Gate Material Gate Material |
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End-to-End Length End-to-End Length |
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Maximum Pressure Maximum Pressure |
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Maximum Temperature Maximum Temperature |
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Overall Length Overall Length |
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Overall Height Overall Height |
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Shape Shape |
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Fitting Type Fitting Type |
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Connection Type Connection Type |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Gradual On/Off Valves
More
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. They gradually open and close to prevent system damage from suddenly starting or stopping flow.
Wheel handles open and close with multiple turns, providing more controlled, shock-resistant flow than lever handles. They have a nonrising stem that stays in the same position whether the valve is open or closed.
Lever handles open and close faster than wheel handles.
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
O'all | ||||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | |
NPT Female | ||||||||
| 1 | 40 | 250 psi @ 350° F | 35° to 350° | 3 5/8" | 13" | 9" | 0000000 | 000000000 |
| 1 1/4 | 60 | 250 psi @ 350° F | 35° to 350° | 3 5/8" | 13" | 9" | 0000000 | 00000000 |
| 1 1/2 | 108 | 250 psi @ 350° F | 35° to 350° | 4 1/2" | 13" | 9 1/2" | 0000000 | 00000000 |
| 2 | 132 | 250 psi @ 350° F | 35° to 350° | 4 5/8" | 14" | 9 11/16" | 0000000 | 00000000 |
- 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
O'all | ||||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | |
NPT Female | ||||||||
| 1 | 40 | 250 psi @ 350° F | 35° to 350° | 3 5/8" | 14 1/4" | 4 7/16" | 0000000 | 0000000 |
| 1 1/4 | 60 | 250 psi @ 350° F | 35° to 350° | 3 5/8" | 13 1/16" | 4 3/4" | 0000000 | 000000 |
| 1 1/2 | 108 | 250 psi @ 350° F | 35° to 350° | 4 1/2" | 20 3/8" | 5 13/16" | 0000000 | 000000 |
| 2 | 132 | 250 psi @ 350° F | 35° to 350° | 4 5/8" | 21 5/16" | 6 1/16" | 0000000 | 00000000 |
Flanged Gradual On/Off Valves
Handle, Nonrising
Stem, and Four Bolt Holes
Handle, Nonrising
Stem, and Eight Bolt Holes
Rising Stem, and
Four Bolt Holes
Rising Stem, and
Eight Bolt Holes
Bolt these valves to flanges. They gradually open and close to prevent system damage from suddenly starting and stopping flow.
Epoxy-coated cast iron valves are more corrosion resistant than plain cast iron or steel valves.
316 stainless steel valves have the best corrosion resistance.
Wheel handles open and close with multiple turns, providing more controlled, shock-resistant flow than pull handles.
Nonrising stems stay in the same position whether the valve is open or closed. Valves with nonrising stems are often used underground and in other low-clearance locations.
Rising stems lift as the valve opens and lower as the valve closes to provide a visual indication of whether flow is on or off. The stem is isolated from the process media for a longer service life than valves with a nonrising stem.
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: Gate
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam
O'all | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pressure Class | Bolt Hole Dia. | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Max. Pressure | Max. Steam Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | |
| 2 | 125 | 3/4" | 6" | 4 3/4" | 4 | 200 psi @ 150° F | 125 psi @ 350° F | -20° to 450° | 7" | 14" | 7" | 00000000 | 0000000 |
| 2 1/2 | 125 | 3/4" | 7" | 5 1/2" | 4 | 200 psi @ 150° F | 125 psi @ 350° F | -20° to 450° | 7 1/2" | 16" | 7 1/2" | 00000000 | 000000 |
| 3 | 125 | 3/4" | 7 1/2" | 6" | 4 | 200 psi @ 150° F | 125 psi @ 350° F | -20° to 450° | 8" | 17 1/4" | 8" | 00000000 | 000000 |
| 4 | 125 | 3/4" | 9" | 7 1/2" | 8 | 200 psi @ 150° F | 125 psi @ 350° F | -20° to 450° | 9" | 20 1/4" | 9" | 00000000 | 000000 |
| 6 | 125 | 7/8" | 11" | 9 1/2" | 8 | 200 psi @ 150° F | 125 psi @ 350° F | -20° to 450° | 10 1/2" | 26 1/2" | 10 1/2" | 00000000 | 00000000 |
- Valve Type: Gate
- For Use With: Water, Air
- Specifications Met: ASME B16.10, ASTM A126 Class B, AWWA C509, MSS-SP-70
O'all | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pressure Class | Bolt Hole Dia. | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | |
| 3 | 125 | 3/4" | 7 1/2" | 6" | 4 | 200 psi @ 140° F | 35° to 140° | 8" | 14" | 8" | 00000000 | 0000000 |
| 4 | 125 | 3/4" | 9" | 7 1/2" | 8 | 200 psi @ 140° F | 35° to 140° | 9" | 17" | 9" | 00000000 | 000000 |
| 6 | 125 | 7/8" | 11" | 9 1/2" | 8 | 200 psi @ 140° F | 35° to 140° | 10 1/2" | 22 5/16" | 10 1/2" | 00000000 | 00000000 |
- Valve Type: Gate
- For Use With: Water, Air
- Specifications Met: ASME B16.10, ASTM A126 Class B, AWWA C509, FM Approved, MSS-SP-70, UL Listed
O'all | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pressure Class | Bolt Hole Dia. | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | |
| 2 1/2 | 125 | 3/4" | 7" | 5 1/2" | 4 | 200 psi @ 140° F | 35° to 140° | 7 1/2" | 17 3/8" | 7 1/2" | 00000000 | 0000000 |
| 3 | 125 | 3/4" | 7 1/2" | 6" | 4 | 200 psi @ 140° F | 35° to 140° | 8" | 19 3/8" | 8" | 00000000 | 000000 |
| 4 | 125 | 3/4" | 9" | 7 1/2" | 8 | 200 psi @ 140° F | 35° to 140° | 9" | 22 3/4" | 9" | 00000000 | 00000000 |
| 6 | 125 | 7/8" | 11" | 9 1/2" | 8 | 200 psi @ 140° F | 35° to 140° | 10 1/2" | 29 1/4" | 10 1/2" | 00000000 | 00000000 |
| 8 | 125 | 7/8" | 13 1/2" | 11 3/4" | 8 | 200 psi @ 140° F | 35° to 140° | 11 1/2" | 36" | 11 1/2" | 00000000 | 00000000 |
- Valve Type: Gate
- For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam
- Packing Material: PTFE Plastic
- Specifications Met: American Petroleum Institute Standard 603, ASME B16.34
O'all | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pressure Class | Bolt Hole Dia. | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Each | |
| 1 | 150 | 1/2" | 4 1/4" | 3 1/8" | 4 | 80 | 275 psi @ 100° F | 150 psi @ 365° F | 0° to 375° | 5" | 11 5/16" | 4 3/4" | 00000000 | 0000000 |
| 1 1/2 | 150 | 1/2" | 5" | 3 7/8" | 4 | 300 | 275 psi @ 100° F | 150 psi @ 365° F | 0° to 375° | 6 1/2" | 14 5/16" | 7 7/8" | 00000000 | 000000 |
| 2 | 150 | 3/4" | 6" | 4 3/4" | 4 | 360 | 275 psi @ 100° F | 150 psi @ 365° F | 0° to 375° | 7" | 16" | 7 7/8" | 00000000 | 000000 |
| 3 | 150 | 3/4" | 7 1/2" | 6" | 4 | 1,150 | 275 psi @ 100° F | 150 psi @ 365° F | 0° to 375° | 8" | 22 1/4" | 9 13/16" | 00000000 | 00000000 |
| 4 | 150 | 3/4" | 9" | 7 1/2" | 8 | 2,150 | 275 psi @ 100° F | 150 psi @ 365° F | 0° to 375° | 9" | 25 15/16" | 9 13/16" | 00000000 | 00000000 |
Threaded Gradual On/Off Valves for Drinking Water
- Valve Type: Gate
- For Use With: Drinking Water
- Seal Material: See Table
- Specifications Met: NSF/ANSI 61
Rated for use in drinking water systems, these valves meet NSF/ANSI 61. They gradually open and close with multiple turns of the wheel handle to prevent system damage from suddenly starting and stopping flow. All have a nonrising stem that stays in the same position whether the valve is open or closed.
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.
O'all | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Max. Pressure | Temp. Range, °F | Seal Material | End-to-End Lg. | Ht. | Lg. | Stem Type | Choose a Color | Each | |
NPT Female | ||||||||||
PVC Plastic Body and Gate | ||||||||||
| 1/2 | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 2 5/16" | 4 9/16" | 2 5/16" | Nonrising | 0000000 | 000000 | |
| 3/4 | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 2 7/16" | 4 13/16" | 2 7/16" | Nonrising | 0000000 | 00000 | |
| 1 | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 2 13/16" | 5 5/16" | 2 13/16" | Nonrising | 0000000 | 00000 | |
| 1 1/4 | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 3 1/16" | 7 7/16" | 3" | Nonrising | 0000000 | 00000 | |
| 1 1/2 | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 3 1/4" | 7 1/2" | 3 1/4" | Nonrising | 0000000 | 00000 | |
| 2 | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 4 3/16" | 8 3/4" | 4 1/4" | Nonrising | White | 0000000 | 00000 |
PVC Plastic Body and Polypropylene Plastic Gate | ||||||||||
| 1/2 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 2 13/16" | 5 1/8" | 2 13/16" | Nonrising | Dark Gray | 0000000 | 00000 |
| 3/4 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 2 13/16" | 5 1/8" | 2 13/16" | Nonrising | Dark Gray | 0000000 | 00000 |
| 1 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 3 5/16" | 5 7/16" | 3 5/16" | Nonrising | Dark Gray | 0000000 | 00000 |
| 1 1/2 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 3 3/4" | 8 1/16" | 3 3/4" | Nonrising | Dark Gray | 0000000 | 00000 |
| 2 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 3 15/16" | 8 9/16" | 3 15/16" | Nonrising | Dark Gray | 0000000 | 000000 |
Socket-Connect Gradual On/Off Valves for Drinking Water
- Valve Type: Gate
- For Use With: Drinking Water
- Seal Material: See Table
- Specifications Met: NSF/ANSI 61
Insert unthreaded pipe into the socket ends and bond with PVC primer and cement to create a permanent, leak-tight connection. These valves meet NSF/ANSI 61, which means they’re safe to use with drinking water systems. They gradually open and close with multiple turns of the wheel handle to prevent system damage from suddenly starting and stopping flow. All have a nonrising stem that stays in the same position whether the valve is open or closed.
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.
O'all | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | Seal Material | End-to-End Lg. | Ht. | Lg. | Stem Type | Choose a Color | Each | |
Socket Connect Female | |||||||||||
PVC Plastic Body and Gate | |||||||||||
| 1/2 | Not Rated | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 2 5/16" | 4 9/16" | 2 5/16" | Nonrising | White | 0000000 | 000000 |
| 3/4 | Not Rated | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 2 7/16" | 4 13/16" | 2 7/16" | Nonrising | 0000000 | 00000 | |
| 1 | Not Rated | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 2 13/16" | 5 5/16" | 2 13/16" | Nonrising | 0000000 | 00000 | |
| 1 1/4 | Not Rated | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 3 1/16" | 7 7/16" | 3" | Nonrising | 0000000 | 00000 | |
| 1 1/2 | Not Rated | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 3 1/4" | 7 1/2" | 3 1/4" | Nonrising | 0000000 | 00000 | |
| 2 | Not Rated | 150 psi @ 70° F | 35° to 140° | EPDM Rubber | 4 3/16" | 8 3/4" | 4 1/4" | Nonrising | 0000000 | 00000 | |
PVC Plastic Body—Polypropylene Plastic Gate | |||||||||||
| 1/2 | 19 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 2 13/16" | 5 1/8" | 2 13/16" | Nonrising | Dark Gray | 0000000 | 00000 |
| 3/4 | 37 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 2 13/16" | 5 1/8" | 2 13/16" | Nonrising | Dark Gray | 0000000 | 00000 |
| 1 | 44 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 3 5/16" | 5 7/16" | 3 5/16" | Nonrising | Dark Gray | 0000000 | 00000 |
| 1 1/2 | 144 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 3 3/4" | 8 1/16" | 3 3/4" | Nonrising | Dark Gray | 0000000 | 00000 |
| 2 | 333 | 200 psi @ 70° F | 40° to 140° | Buna-N Rubber | 3 15/16" | 8 9/16" | 3 15/16" | Nonrising | Dark Gray | 0000000 | 000000 |