About Gradual On/Off Valves
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Socket-Connect Gradual On/Off Valves for Chemicals
- Valve Type: Gate
- For Use With: Water, Carbon Dioxide, Citric Acid, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Phosphoric Acid, Propane, Salt Water
- Seal Material: Fluoroelastomer Rubber
For a permanent, leak-tight seal, insert unthreaded pipe into the socket ends on these valves and bond with primer and cement. To withstand aggressive and corrosive solutions in chemical-processing applications, they have a fluoroelastomer seal and a plastic body. All gradually open and close with multiple turns of the wheel handle to prevent system damage from suddenly starting and stopping flow. Valves have a nonrising stem that stays in the same position whether the valve is open or closed.
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.
Valves | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
O'all | Repair Kits | ||||||||||
| Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Stem Type | Each | Each | ||
Socket Connect Female | |||||||||||
Light Gray CPVC Plastic Body and Gate | |||||||||||
| 1/2 | 19 | 200 psi @ 70° F | 40° to 200° | 2 13/16" | 5 1/8" | 2 13/16" | Nonrising | 4931K71 | 0000000 | 8436N107 | 000000 |
| 1 | 44 | 200 psi @ 70° F | 40° to 200° | 3 5/16" | 5 7/16" | 3 5/16" | Nonrising | 4931K73 | 000000 | 8436N108 | 00000 |
| 2 | 333 | 200 psi @ 70° F | 40° to 200° | 3 15/16" | 8 9/16" | 3 15/16" | Nonrising | 4931K76 | 000000 | 8436N106 | 00000 |
Threaded Gradual On/Off Valves for Chemicals
- Valve Type: Gate
- For Use With: Water, Carbon Dioxide, Citric Acid, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Phosphoric Acid, Propane, Salt Water
- Seal Material: Fluoroelastomer Rubber
The fluoroelastomer seal and plastic body can stand up to aggressive and corrosive solutions, so these valves are often used in chemical-processing applications. 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.
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.
Valves | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
O'all | Repair Kits | |||||||||||
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Stem Type | Color | Each | Each | ||
NPT Female | ||||||||||||
CPVC Plastic Body and Gate | ||||||||||||
| 1/2 | 19 | 200 psi @ 70° F | 40° to 200° | 2 13/16" | 5 1/8" | 2 13/16" | Nonrising | Light Gray | 4931K51 | 0000000 | 8436N107 | 000000 |
| 1 | 44 | 200 psi @ 70° F | 40° to 200° | 3 5/16" | 5 7/16" | 3 5/16" | Nonrising | Light Gray | 4931K53 | 000000 | 8436N108 | 00000 |
| 2 | 333 | 200 psi @ 70° F | 40° to 200° | 3 15/16" | 8 9/16" | 3 15/16" | Nonrising | Light Gray | 4931K56 | 000000 | 8436N106 | 00000 |
Plastic 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
A lightweight alternative to metal valves, these plastic valves have NPT connections for use with threaded pipe. All meet NSF/ANSI 61 for use in drinking water systems. Also known as gate valves, they gradually open and close with multiple turns of the wheel handle to prevent system damage from suddenly starting and stopping flow. Since the handle sits on a nonrising stem, it stays at the same height whether these valves are open or closed. This helps them fit in underground lines and other low-clearance spots. When seals wear out, replace them using repair kits (sold separately).
CPVC valves resist heat up to 200° F, making them a better choice for hot water than PVC 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.
Valves | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
O'all | Repair Kits | ||||||||||||
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | Seal Material | End-to-End Lg. | Ht. | Lg. | Stem Type | Color | Each | Each | ||
NPT Female | |||||||||||||
CPVC Plastic Body and Polypropylene Plastic Gate | |||||||||||||
| 1/2 | 19 | 200 psi @ 70° F | 32° to 200° | EPDM Rubber | 2 13/16" | 5 1/8" | 2 13/16" | Nonrising | Dark Gray | 4974K103 | 0000000 | 8436N116 | 000000 |
| 3/4 | 37 | 200 psi @ 70° F | 32° to 200° | EPDM Rubber | 2 13/16" | 5 1/8" | 2 13/16" | Nonrising | Dark Gray | 4974K104 | 000000 | 8436N117 | 00000 |
| 1 | 44 | 200 psi @ 70° F | 32° to 200° | EPDM Rubber | 3 1/4" | 5 7/8" | 3 1/4" | Nonrising | Dark Gray | 4974K105 | 000000 | 8436N118 | 00000 |
| 1 1/2 | 144 | 200 psi @ 70° F | 32° to 200° | EPDM Rubber | 3 3/4" | 8 1/16" | 3 15/16" | Nonrising | Dark Gray | 4974K106 | 000000 | 8436N119 | 00000 |
| 2 | 333 | 200 psi @ 70° F | 32° to 200° | EPDM Rubber | 3 15/16" | 8 9/16" | 4 7/16" | Nonrising | Dark Gray | 4974K107 | 000000 | 8436N121 | 00000 |
Plastic 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
Bond these valves to plastic pipe with PVC primer and cement (not included) to create a permanent, leak-tight connection in drinking water lines. Also known as gate valves, they open and close gradually to prevent damage to your system from sudden changes in flow. Turn the handle multiple times to start or stop flow. Safe for use in drinking water systems, these valves meet NSF/ANSI 61. They’re plastic, so they’re lighter in weight than metal valves.
All have a nonrising stem, which means that the handle won’t move up as the valve opens. This makes them good for underground and other low-clearance applications.
CPVC valves handle temperatures up to 200° F, so you can use them in hot drinking water applications.
Use repair kits to replace worn 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.
Valves | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
O'all | Repair Kits | ||||||||||||
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | Seal Material | End-to-End Lg. | Ht. | Lg. | Stem Type | Color | Each | Each | ||
Socket Connect Female | |||||||||||||
CPVC Plastic Body—Polypropylene Plastic Gate | |||||||||||||
| 1 | 44 | 200 psi @ 70° F | 32° to 200° | EPDM Rubber | 3 1/4" | 5 13/32" | 3 1/4" | Nonrising | Dark Gray | 4974K101 | 0000000 | 8436N118 | 000000 |
| 2 | 333 | 200 psi @ 70° F | 32° to 200° | EPDM Rubber | 3 15/16" | 8 9/16" | 4 7/16" | Nonrising | Dark Gray | 4974K102 | 000000 | 8436N121 | 00000 |