Pressure Reliefs | McMaster-Carr

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For Use With

Argon/Carbon Dioxide Blend

System of Measurement

Inlet Pipe Size

Maximum Inlet Pressure

Less than 500 psi

500 psi to 999 psi

1,000 psi to 1,999 psi

2,000 psi to 3,999 psi

Outlet Pressure

Set Pressure

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

Body Material

Inlet Thread Type

Valve Function

Back-Pressure Regulation

Pressure Regulation

Pressure Relief

Vacuum Regulation

Set Pressure Configuration

Adjustable

Fixed

Valve Type

Air Admittance

Back-Pressure Regulator

Shape

Relief Port Pipe Size

Inlet Connection

Seal Material

Airflow Capacity

Pipe Size

Actuation

Maximum Temperature

Inlet Gender

Inlet Connection Port

Relief Port

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Exempt

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798 Products

Fluid Handling

Pressure-Relief Valves

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

236 products

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

289 products

Breather Vents

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

147 products

Airlocks

Vent gases out of flasks, carboys, and other containers without letting dust and oxygen in

1 product

Pressure-Relief Discs

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

39 products

Vacuum-Regulating Valves

Control the amount of air that a vacuum pump draws from your system to maintain vacuum levels

14 products

Vacuum Breakers

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

35 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