Pressure-Relief Fittings | McMaster-Carr

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Stainless Steel

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$255 or greater

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Less than 1 psi

1 psi to 4.9 psi

5 psi to 9.9 psi

10 psi to 49.9 psi

50 psi or greater

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200° F to 249° F

250° F to 299° F

300° F to 499° F

500° F or greater

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Resin-Filled Graphite

Stainless Steel

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181 Products

Fluid Handling

Pressure-Relief Valves

Pressure-Relief Valves

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

Breather Vents

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

Pressure-Relief Discs

Pressure-Relief Discs

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

Lubricating

Grease Fittings

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

Electrical

Electrical Enclosure Drain Vents

Electrical Enclosure Drain Vents

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

Facility and Grounds Maintenance

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.)