Hydronic Valves | McMaster-Carr

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For Use With

Ethylene Glycol

Inlet Pipe Size

Body Material

304 Stainless Steel

Pipe Size

Inlet Gender

Maximum Pressure

Actuation

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

Fitting Connection

Solder-Socket Union

Material

Stainless Steel

Gender

Thread Type

Shape

Valve Type

Zero Pressure Drop

Relief Port

Relief Port Pipe Size

Valve Function

Pressure Relief

Mounting Position

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

Handle Style

Minimum Temperature

Relief Port Location

How can we improve?

81 Products

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A threaded relief port directs discharge away from your work environment

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

Key-Operated Air-Release Valves for Water

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Turn the key to manually vent radiators and heaters

Air-Release Valves for Drinking Water

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Meet NSF/ANSI 61 for safe use with drinking water

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

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

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Seal shut when steam enters to prevent system contents from escaping

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