ASME Pop-Safety Valves | McMaster-Carr

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1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

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EAR99

DFARS Specialty Metals

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114 Products

About Pressure-Relief Valves

ASME-Code Fast-Acting Pressure-Relief
Valves for Air and Inert Gas

Body is brass or nickel-plated brass. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.

Corrosion-Resistant ASME-Code Fast-Acting
Pressure-Relief Valves for Air and Inert Gas

For corrosion resistance in wet conditions and harsh environments, these valves have a 303 stainless steel body. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.

Remote-Discharge ASME-Code Fast-Acting
Pressure-Relief Valves for Air and Inert Gas

These valves have a bronze body for durability and a long service life. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.

Corrosion-Resistant
Remote-Discharge ASME-Code Fast-Acting
Pressure-Relief Valves for Air and Inert Gas

With a 316 stainless steel body for exceptional corrosion resistance, these valves are often used in wet conditions and harsh environments. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.

Large-Diameter Remote-Discharge
ASME-Code Fast-Acting
Pressure-Relief Valves for Air and Inert Gas

Commonly used with high-volume blowers, compressors, and air-powered conveyors, these valves quickly relieve a large amount of air in systems with a pipe size of 2 or greater. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.

Large-Diameter Remote-Discharge Fast-Acting
Pressure-Relief Valves for Air and Inert Gas

Commonly used with high-volume blowers, compressors, and air-powered conveyors, these valves quickly relieve a large amount of air in systems with a pipe size of 2 or greater.

ASME-Code Fast-Acting
Pressure-Relief Valves for Water

These valves meet ASME Code Section VIII for use with water pressure vessels.

ASME-Code Fast-Acting
Pressure-Relief Valves for Hot Water

Protect your water-heating system with these valves that meet ASME Code Section IV for hot water heaters and boilers.

Fast-Acting Temperature- and
Pressure-Relief Valves for Hot Water

Also known as T & P valves, these open when water temperature reaches 210° F or at the set pressure.

ASME-Code Fast-Acting
Pressure-Relief Valves for Steam

These valves meet ASME Code Section I for use with steam power boilers requiring pressure relief above 15 psi.

Fast-Acting Pressure-Relief Valves
for Ultra-Low-Pressure Steam

Choose these valves for small steam-heating boilers requiring pressure relief between 5 psi and 12 psi.

ASME-Code Fast-Acting Pressure-Relief
Valves for Low-Pressure Steam

For use with low-pressure steam-heating boilers requiring pressure relief at 15 psi, these valves meet ASME Code Section IV.

ASME-Code Fast-Acting Pressure-Relief
Valves for Cryogenic Fluids

Our only valves that meet ASME Code Section VIII for use with cryogenic pressure vessels. They are for use with argon, carbon dioxide, helium, hydrogen, methane, nitrogen, and oxygen.

About Pressure-Relief Valves

Fast-Acting Pressure-Relief Valves

ASME-Code Fast-Acting Pressure-ReliefValves for Air and Inert Gas

Corrosion-Resistant ASME-Code Fast-ActingPressure-Relief Valves for Air and Inert Gas

Remote-Discharge ASME-Code Fast-ActingPressure-Relief Valves for Air and Inert Gas

Corrosion-ResistantRemote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas

Large-Diameter Remote-DischargeASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas

Large-Diameter Remote-Discharge Fast-ActingPressure-Relief Valves for Air and Inert Gas

ASME-Code Fast-ActingPressure-Relief Valves for Water

ASME-Code Fast-ActingPressure-Relief Valves for Hot Water

Fast-Acting Temperature- andPressure-Relief Valves for Hot Water

ASME-Code Fast-ActingPressure-Relief Valves for Steam

Fast-Acting Pressure-Relief Valvesfor Ultra-Low-Pressure Steam

ASME-Code Fast-Acting Pressure-ReliefValves for Low-Pressure Steam

ASME-Code Fast-Acting Pressure-ReliefValves for Cryogenic Fluids