Pressure Relief Vents | McMaster-Carr

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For Use With

System of Measurement

Inlet Pipe Size

Set Pressure

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

Body Material

Pipe Size

Inlet Thread Type

Maximum Inlet Pressure

Shape

Thread Type

Fitting Connection

Valve Type

Material

Valve Function

Set Pressure Configuration

Inlet Connection

Maximum Temperature

Gender

Actuation

Overall Height

Airflow Capacity

Burst Pressure

REACH

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

336 Products

Fluid Handling

Pressure-Relief Valves

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

66 products

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

155 products

Pressure-Relief Discs

Rupture at a set pressure or temperature to vent fluid and gas and protect machinery; one-time use

13 products

Air Vent Valves

Eliminate air pockets from fluid lines to maintain consistent flow and prevent surges

39 products

Vacuum Breakers

When pressure drops, vents open to prevent suction from drawing liquid back upstream

34 products

Containers, Storage, and Furniture

Drum Vents

Prevent drum failure by releasing pressure and vacuum buildup

7 products

Electrical

Electrical Enclosure Vents

Attach to sealed enclosures so air can flow to equalize temperature and pressure

10 products

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

6 products

Electrical Enclosure Drains

Release moisture to keep components dry

4 products

Facility and Grounds Maintenance

Air Admittance Valves

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

2 products