About Backflow-Prevention Valves
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About On/Off Valves
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Threaded On/Off Valves for Refrigerant
- Valve Type: Ball
- For Use With: Refrigerant
- Seal Material: PTFE Plastic
- Specifications Met: NACE (National Association of Corrosion Engineers) MR0103, NACE (National Association of Corrosion Engineers) MR0175
Often used in HVAC or refrigeration systems, these valves are designed to control the flow of ammonia, nitrogen, and other harsh chemicals. To prevent accidental spills, a spring on the handle will automatically close the valve if you lose your grip. It’s also known as a deadman’s handle. The ball has a vent to relieve gas buildup when the valve is closed. Made from 316 stainless steel, these valves have excellent corrosion resistance.
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  | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | For Refrigerant Number | Features | Each | |
316 Stainless Steel Body | |||||||||
|---|---|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | |||||||||
| 1/4 | 8.4 | 2,000 psi @ 100° F | -20° to 500° | 29 | 2 1/16" | R-134A, R-717, R-728, R-744 | Vented Ball | 0000000 | 0000000 |
| 3/8 | 7.2 | 2,000 psi @ 100° F | -20° to 500° | 29 | 2 1/16" | R-134A, R-717, R-728, R-744 | Vented Ball | 0000000 | 000000 |
| 1/2 | 15 | 2,000 psi @ 100° F | -20° to 500° | 29 | 2 1/4" | R-134A, R-717, R-728, R-744 | Vented Ball | 0000000 | 000000 |
| 3/4 | 30 | 2,000 psi @ 100° F | -20° to 500° | 29 | 3" | R-134A, R-717, R-728, R-744 | Vented Ball | 0000000 | 000000 |
| 1 | 43 | 2,000 psi @ 100° F | -20° to 500° | 29 | 3 3/8" | R-134A, R-717, R-728, R-744 | Vented Ball | 0000000 | 000000 |
On/Off Valves with Solder-Connect Fittings for Refrigerant
- Valve Type: Ball
- For Use With: Refrigerant
- Seal Material: PTFE Plastic
- Specifications Met: UL Listed, C-UL Listed, CE Marked
Install these valves in HVAC and refrigeration systems to control CO₂. They are operated with a wrench to give you the leverage needed to manage the flow of highly pressurized gases common in refrigeration systems. Because they require a wrench, these valves can’t be opened accidentally when bumped or snagged. Solder them to metal tubing for a permanent, leak-tight connection. To monitor pressure or fluid flow, attach a gauge to the port. The port can also be used to drain and divert liquid. These valves are full port, so they do not restrict 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.
Gauge Ports | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Copper Tube Size | For Tube OD | No. of | Thread Size | Gender | Thread Type | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Drive Style | Drive Size | For Refrigerant No. | Each | |
Wrench-Operated Brass Body | ||||||||||||||
Solder Connect × Solder Connect | ||||||||||||||
| 1/8 | 1/4" | 1 | 7/16"-20 | Male | UNF | 1 | 2,030 psi @ 300° F | -40° to 300° | 5" | External Hex | 13/16" | R-744 | 0000000 | 0000000 |
| 1/4 | 3/8" | 1 | 7/16"-20 | Male | UNF | 4.3 | 2,030 psi @ 300° F | -40° to 300° | 5 1/4" | External Hex | 13/16" | R-744 | 0000000 | 000000 |
| 3/8 | 1/2" | 1 | 7/16"-20 | Male | UNF | 6.2 | 2,030 psi @ 300° F | -40° to 300° | 5 1/2" | External Hex | 13/16" | R-744 | 0000000 | 000000 |
| 1/2 | 5/8" | 1 | 7/16"-20 | Male | UNF | 12.1 | 2,030 psi @ 300° F | -40° to 300° | 5 7/8" | External Hex | 13/16" | R-744 | 0000000 | 000000 |
| 5/8 | 3/4" | 1 | 7/16"-20 | Male | UNF | 19 | 2,030 psi @ 300° F | -40° to 300° | 5 7/8" | External Hex | 15/16" | R-744 | 0000000 | 000000 |
| 3/4 | 7/8" | 1 | 7/16"-20 | Male | UNF | 27.5 | 2,030 psi @ 300° F | -40° to 300° | 7 5/16" | External Hex | 15/16" | R-744 | 0000000 | 000000 |
| 1 | 1 1/8" | 1 | 7/16"-20 | Male | UNF | 48 | 2,030 psi @ 300° F | -40° to 300° | 7 5/16" | External Hex | 1 1/8" | R-744 | 0000000 | 000000 |
| 1 1/4 | 1 3/8" | 1 | 7/16"-20 | Male | UNF | 77 | 2,030 psi @ 300° F | -40° to 300° | 8 1/8" | External Hex | 1 1/8" | R-744 | 0000000 | 000000 |
| 1 1/2 | 1 5/8" | 1 | 7/16"-20 | Male | UNF | 96 | 2,030 psi @ 300° F | -40° to 300° | 9 1/2" | External Hex | 1 1/8" | R-744 | 0000000 | 000000 |
| 2 | 2 1/8" | 1 | 7/16"-20 | Male | UNF | 198 | 2,030 psi @ 300° F | -40° to 300° | 10 7/8" | External Hex | 1 5/8" | R-744 | 0000000 | 000000 |
Check Valves for Refrigerant
- Spring Material: Stainless Steel
- Seal Material: Neoprene Rubber
- Ball Material: Stainless Steel
- For Use With: Refrigerant
Use these valves in refrigeration and air-conditioning systems. All open to allow flow in one direction and close when flow stops or reverses. They solder to copper tubing for a permanent, leak-tight connection.
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 Copper Tube Size | For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Each | |
Copper Body | ||||||||
|---|---|---|---|---|---|---|---|---|
Solder Connect × Solder Connect | ||||||||
| 1/4 | 3/8" | 1.2 | 755 psi @ 300° F | 1 | -40° to 300° | 3 3/4" | 0000000 | 000000 |
| 3/8 | 1/2" | 2.2 | 755 psi @ 300° F | 1 | -40° to 300° | 3 3/4" | 0000000 | 00000 |
| 3/4 | 7/8" | 7.5 | 755 psi @ 300° F | 1 | -40° to 300° | 4 1/2" | 0000000 | 00000 |
| 1 | 1 1/8" | 12.4 | 755 psi @ 300° F | 1 | -40° to 300° | 5" | 0000000 | 000000 |