Air-Release Valves | McMaster-Carr

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Inlet Pipe Size

For Use With

Aluminum Chloride

Ethylene Glycol

Hydraulic Fluid

Body Material

Stainless Steel

Pipe Size

Maximum Pressure

Less than 1,000 psi

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

3,000 psi to 3,999 psi

4,000 psi or greater

Inlet Gender

Inlet Thread Type

Relief Port Pipe Size

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 449° F

450° F or greater

Valve Type

Actuation

Thread Type

UN/UNF (SAE Straight)

Material

Stainless Steel

Shape

Set Pressure

0 psi to 14 psi

0 psi to 50 psi

0 psi to 150 psi

0 psi to 300 psi

0 psi to 700 psi

0 psi to 1,000 psi

0 psi to 1,200 psi

3 psi to 10 psi

4 psi to 15 psi

5 psi to 75 psi

Relief Port

Fitting Connection

Push to Connect

Gender

Valve Function

Flow Adjustment

Pressure Control

Pressure Relief

Inlet Location

RoHS

Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Inlet Connection

Push to Connect

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361 Products

Air Vent Valves

Air-Release Valves for Water and Coolant

Air-Release Valves for Water and Coolant

Maintain consistent flow and prevent water surges in HVAC systems

Remote-Discharge Air-Release Valves for Water

Remote-Discharge Air-Release Valves for Water

A threaded relief port directs discharge away from your work environment

Corrosion-Resistant Remote-Discharge Air-Release Valves for Water

Corrosion-Resistant Remote-Discharge Air-Release Valves for Water

Made of PVC to withstand wet conditions and harsh environments

Air-Release Valves for Drinking Water

Air-Release Valves for Drinking Water

Meet NSF/ANSI 61 for safe use with drinking water

Air-Release Valves for Oil and Fuel

Air-Release Valves for Oil and Fuel

Stainless steel for use with oil, diesel fuel, gasoline, and kerosene

Corrosion-Resistant Air-Release Valves for Water and Coolant

Corrosion-Resistant Air-Release Valves for Water and Coolant

Nylon body and rubber seal withstand wet conditions and harsh environments

Inline Air-Release Valves for Water

Inline Air-Release Valves for Water

Trap and discharge air bubbles while allowing inline flow

Air-Release Valves for Steam

Air-Release Valves for Steam

Seal shut when steam enters to prevent system contents from escaping

Key-Operated Air-Release Valves for Water

Key-Operated Air-Release Valves for Water

Turn the key to manually vent radiators and heaters

Other Products

Pressure-Relief Valves

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

Air-Exhaust Valves

Air-Exhaust Valves

Vent or divert exhaust to speed up the operation of air cylinders, actuators, and other equipment

Air Admittance Valves

Air Admittance Valves

Allow air into drain, waste, and vent systems so you don't have to vent plumbing to the outdoors

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)