Blowoff Valves | McMaster-Carr

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Inlet Pipe Size

For Use With

Aluminum Chloride

Chlorinated Water

Ethylene Glycol

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

4,000 psi or greater

Set Pressure

Less than 500 psi

500 psi to 999 psi

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

3,000 psi or greater

Inlet Thread Type

Outlet Pressure

0 psi to 15 psi

0 psi to 20 psi

0 psi to 25 psi

0 psi to 50 psi

0 psi to 100 psi

0 psi to 125 psi

0 psi to 250 psi

0 psi to 500 psi

0 psi to 800 psi

2 psi to 15 psi

2 psi to 20 psi

2 psi to 25 psi

2 psi to 30 psi

10 psi to 30 psi

Body Material

Stainless Steel

Valve Function

Backflow Prevention

Pressure Regulation

Pressure Relief

Vacuum Regulation

Set Pressure Configuration

Airflow Capacity

Shape

Relief Port Pipe Size

Valve Type

Pressure Regulator

Reduced Pressure Zone

Vacuum Regulator

Inlet Connection

Push to Connect

Seal Material

Stainless Steel

Actuation

Inlet Gender

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 449° F

450° F or greater

Inlet Connection Port

Relief Port

Overall Height

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Relief Port Location

How can we improve?

406 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

Pressure-Regulating Valves

Pressure-Regulating Valves

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

Vacuum-Regulating Valves

Vacuum-Regulating Valves

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

On-Off Valves

Start and stop flow through a line

Vacuum Breakers

Vacuum Breakers

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

Backflow-Prevention Valves

Backflow-Prevention Valves

Dual checks stop flow from reversing and contaminating your system

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.)