Bronze Relief Valves | McMaster-Carr

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	Body Material Body Material	Show

Bronze

	Body Material Body Material	Hide

Aluminum

Brass

Brass/Stainless Steel

	Inlet Pipe Size Inlet Pipe Size

	For Use With For Use With

Liquid Carbon Dioxide

	Relief Port Pipe Size Relief Port Pipe Size

	Valve Function Valve Function

Pressure Relief

Pressure Regulation

Back-Pressure Regulation

Vacuum Regulation

	Maximum Inlet Pressure Maximum Inlet Pressure

Less than 500 psi

500 to 999 psi

1,000 to 1,999 psi

	Inlet Thread Type Inlet Thread Type

NPT

	Seal Material Seal Material

	Inlet Gender Inlet Gender

Male

Female

	Maximum Temperature Maximum Temperature

Less than 250° F

250° to 299° F

400° to 499° F

	Specifications Met Specifications Met

	Valve Type Valve Type

Pop Safety

Relief

Pressure Regulator

Back-Pressure Regulator

Vacuum Regulator

	Set Pressure Configuration Set Pressure Configuration

Nonadjustable

Adjustable

	Shape Shape


90° Elbow	Straight

	Relief Port Thread Type Relief Port Thread Type

NPT

	Relief Port Connection Type Relief Port Connection Type

Pipe

Vent

	Inlet Connection Style Inlet Connection Style

Threaded

	Activation Activation

Pressure Driven

Vacuum Driven

	Relief Port Gender Relief Port Gender

Female

	Inlet Location Inlet Location

Bottom

Side

	Inlet Connection Type Inlet Connection Type

	Pipe

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant with
Exemptions

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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141 Products

About Pressure-Relief Valves

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.

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.

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.

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.

Precision-Adjustment Pressure-Relief Valves for Water

Change set pressure without guesswork—the adjustment screw is marked in 25 psi increments for making pressure adjustments without a gauge.

Precision-Adjustment Pressure-Relief Valves for Fuel

A finely threaded adjustment screw lets you make precise set pressure adjustments.

Pressure-Relief Valves for Oil

These valves are often used in hydraulic and lubrication systems.

Pressure-Regulating Valves

Extended-Life Pressure-Regulating
Valves for Water, Oil, Air, and Inert Gas

For a longer service life than brass and cast iron valves, these have a durable bronze body.

Heavy Duty Pressure-Regulating
Valves for Water and Air

Thicker walls and a 304 stainless steel seal make these valves tougher than brass pressure-regulating valves.

Quick-Set Pressure-Regulating Valves for Water

Change outlet pressure without using a gauge—turn the dial to adjust the outlet pressure in 5 or 10 psi increments.

Extended-Life Pressure-Regulating
Valves for Cryogenic Liquids

For a longer service life than standard valves for cryogenic liquids, these have a durable bronze body. They’re for use with liquid argon, liquid carbon dioxide, liquid nitrogen, and liquid oxygen.

Extended-Life Pressure-Regulating Valves for Steam

For a longer service life than cast iron valves, these have a durable bronze body.

Pressure-Regulating Valves for Drinking Water

These valves meet NSF/ANSI 61 for use in drinking water systems.

Extended-Life Back-Pressure-Regulating
Valves for Water and Oil

For a longer service than cast iron valves, these have a durable bronze body and a 303 stainless steel seal.

Extended-Life Vacuum-Regulating Valves for Air and Inert Gas

Extended-Life Vacuum-Regulating
Valves for Air and Inert Gas

For a longer service life than brass vacuum-regulating valves, these are made of bronze for strength and durability.

About Pressure-Relief Valves

Pressure-Relief Valves

Remote-Discharge ASME-Code 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

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

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

Precision-Adjustment Pressure-Relief Valves for Water

Precision-Adjustment Pressure-Relief Valves for Fuel

Pressure-Relief Valves for Oil

Pressure-Regulating Valves

Extended-Life Pressure-RegulatingValves for Water, Oil, Air, and Inert Gas

Heavy Duty Pressure-RegulatingValves for Water and Air

Quick-Set Pressure-Regulating Valves for Water

Extended-Life Pressure-RegulatingValves for Cryogenic Liquids

Extended-Life Pressure-Regulating Valves for Steam

Pressure-Regulating Valves for Drinking Water

Extended-Life Back-Pressure-RegulatingValves for Water and Oil

Extended-Life Vacuum-Regulating Valves for Air and Inert Gas

Extended-Life Vacuum-RegulatingValves for Air and Inert Gas

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

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

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

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

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

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

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

Extended-Life Pressure-Regulating
Valves for Water, Oil, Air, and Inert Gas

Heavy Duty Pressure-Regulating
Valves for Water and Air

Extended-Life Pressure-Regulating
Valves for Cryogenic Liquids

Extended-Life Back-Pressure-Regulating
Valves for Water and Oil

Extended-Life Vacuum-Regulating
Valves for Air and Inert Gas