For Use With For Use With |
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Maximum Pressure Maximum Pressure |
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Valve Type Valve Type |
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Valve Function Valve Function |
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Activation Activation |
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Mounting Orientation Mounting Orientation |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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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Specifications Met Specifications Met |
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About Actuated On/Off Valves
More
Air-Release Valves for Water and Coolant


and Female
Outlet

These valves are often used to remove air pockets in cooling and heating systems to maintain consistent flow and prevent water surges that can damage equipment. All have a vented relief port to exhaust discharge directly.
Valves with female/male inlets have an inlet with both male and female threads, so they can be connected to both male and female adapters and equipment ports.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||
---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Pipe Size | Location | Relief Port Location | Max. Pressure, psi | Temperature Range, °F | Overall Ht. | Each | |
Brass Body—Vertical Mount | |||||||||
1/8 | Bottom | 1/8 | Side | Top | 75 | 33° to 240° | 4 3/8" | 000000 | 000000 |
Inlet | |||||||
---|---|---|---|---|---|---|---|
Pipe Size | Location | Relief Port Location | Max. Pressure, psi | Temperature Range, °F | Overall Ht. | Each | |
Brass Body—Vertical Mount | |||||||
1/8 | Bottom | Top | 50 | 33° to 240° | 2 5/8" | 0000000 | 000000 |
1/8 | Bottom | Top | 50 | 33° to 240° | 3 3/4" | 0000000 | 00000 |
1/8 | Bottom | Top | 75 | 33° to 240° | 4 3/8" | 000000 | 00000 |
1/4 | Bottom | Top | 50 | 33° to 240° | 4" | 0000000 | 00000 |
1/4 | Bottom | Top | 150 | 33° to 240° | 4 3/4" | 000000 | 00000 |
1/2 | Bottom | Top | 150 | 33° to 240° | 3 1/8" | 0000000 | 00000 |
3/4 | Bottom | Top | 150 | 33° to 240° | 3 1/8" | 0000000 | 00000 |
1 | Bottom | Top | 150 | 33° to 240° | 3 1/2" | 0000000 | 00000 |
Key-Operated Air-Release Valves for Water

- Max. Pressure: 150 psi
- Temperature Range: 33° to 200° F
Turn the key to manually release air from radiators, heaters, and other hot water equipment. These valves have a vented relief port that exhausts discharge directly. Body is nickel-plated brass for good corrosion resistance.
Motor-Driven On/Off Valves with Solder-Connect Fittings

- Valve Type: Ball
- For Use With: Water, Steam
- Seal Material : Buna-N Rubber
- Specifications Met: C-UL Listed, UL Listed
Slide copper pipe into the solder-connect fittings on these valves and weld for a strong, permanent connection. They’re often used for remote on/off control in heating and cooling systems. All operate on electricity to automatically start and stop flow. Valves do not require a minimum pressure drop between the inlet and the outlet for operation. They are normally closed unless actuated. All are standard port, so they slightly restrict flow.
The actuator is directly mounted to the valve body to minimize movement and reduce wear. The manual override allows you to operate the valve during power outages.
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.
Overall | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | For Copper Tube Size | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Pressure Drop | Actuation Time, sec. | Temp. Range, °F | Valve Lg. | Lg. | Ht. | Each | |
Brass Body with Wire Leads | ||||||||||||
24V AC | ||||||||||||
5/8" | 1/2 | 4 | 300 psi @ 250° F | 15 psi @ 250° F | Zero Pressure Drop | 9 | 35° to 250° | 3 1/2" | 3 11/16" | 4 1/4" | 00000000 | 0000000 |
7/8" | 3/4 | 4 | 300 psi @ 250° F | 15 psi @ 250° F | Zero Pressure Drop | 9 | 35° to 250° | 3 1/2" | 3 11/16" | 4 1/4" | 00000000 | 000000 |
1 1/8" | 1 | 4 | 300 psi @ 250° F | 15 psi @ 250° F | Zero Pressure Drop | 9 | 35° to 250° | 3 1/2" | 3 11/16" | 4 1/4" | 00000000 | 000000 |
120V AC | ||||||||||||
5/8" | 1/2 | 3 | 300 psi @ 250° F | 15 psi @ 250° F | Zero Pressure Drop | 9 | 35° to 250° | 3 1/2" | 3 11/16" | 4 1/4" | 00000000 | 000000 |
7/8" | 3/4 | 3 | 300 psi @ 250° F | 15 psi @ 250° F | Zero Pressure Drop | 9 | 35° to 250° | 3 1/2" | 3 11/16" | 4 1/4" | 00000000 | 000000 |
1 1/8" | 1 | 3 | 300 psi @ 250° F | 15 psi @ 250° F | Zero Pressure Drop | 9 | 35° to 250° | 3 1/2" | 3 11/16" | 4 1/4" | 00000000 | 000000 |