Hydronic Valves | McMaster-Carr

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For Use With

Ethylene Glycol

Pipe Size

Body Material

304 Stainless Steel

Inlet Pipe Size

Thread Type

Gender

Material

Stainless Steel

Actuation

Fitting Connection

Solder-Socket Union

Maximum Pressure

Inlet Gender

Maximum Temperature

Less than 200° F

200° F to 224° F

225° F to 249° F

250° F to 399° F

400° F or greater

Valve Type

Zero Pressure Drop

Shape

Handle Style

Relief Port Pipe Size

Valve Function

Pressure Relief

RoHS

Compliant with Exemptions

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

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Relief Port

Connects To

How can we improve?

81 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 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

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

Key-Operated Air-Release Valves for Water

Key-Operated Air-Release Valves for Water

Turn the key to manually vent radiators and heaters

Air-Release Valves for Drinking Water

Air-Release Valves for Drinking Water

Meet NSF/ANSI 61 for safe use with drinking water

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 Steam

Air-Release Valves for Steam

Seal shut when steam enters to prevent system contents from escaping

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