Quick-Exhaust Valves | McMaster-Carr

	Inlet Pipe Size Inlet Pipe Size

	Inlet Thread Type Inlet Thread Type

	Outlet Pipe Size Outlet Pipe Size

	Valve Function Valve Function

	Shape Shape

	90° Elbow
	Straight
	Tee

	For Use With For Use With

	Exhaust Pipe Size Exhaust Pipe Size

	Valve Type Valve Type

	Actuation Actuation


Pressure	Air

Electric (Solenoid)

	Body Material Body Material

	Inlet Connection Type Inlet Connection Type


Pipe	Tube

	Outlet Connection Type Outlet Connection Type


Pipe	Tube

	Overall Length Overall Length

	Overall Height Overall Height

	For Outlet Tube OD For Outlet Tube OD

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Inlet Gender Inlet Gender

Female

Male

	Number of Flow Ports Number of Flow Ports

	Outlet Gender Outlet Gender

Female

Male

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

Forward

How can we improve?

184 Products

About Pressure-Relief Valves

Elbow Air-Exhaust Control Valves

Quickly vent exhaust air to the atmosphere or divert it to another place in your system to speed up the movement of equipment. The 90° elbow shape allows you to install them in tight spaces. Also known as quick exhaust valves.

Elbow Air-Exhaust Control Valves with Flow Control

Control the flow of exhaust air while also regulating the exhaust air speed. These valves dump exhaust air to the atmosphere without routing it back through a directional control valve. The 90° elbow shape allows you to install them in tight spaces. Also known as quick exhaust valves.

Air-Exhaust Control Valves

Quickly dump exhaust air to the atmosphere without routing it back through a directional control valve to speed up the movement of equipment. Also known as quick exhaust valves.

Quiet Air-Exhaust Control Valves

A muffler reduces exhaust noise. Valves allow airflow into your equipment and then quickly dump exhaust air to the atmosphere without routing it back through a directional control valve to speed up the movement of equipment. Also known as quick exhaust valves.

Made-to-Order Air-Operated Air-Exhaust Control Valves

Choose the pressure range you need. When these valves receive an air signal, they quickly dump exhaust air to the atmosphere without routing it back through a directional control valve to speed up the movement of equipment. They're often used with air compressors that require continuous operation. Also known as quick exhaust valves.

Air-Exhaust Flow Control Valves

Install these valves in the exhaust ports of air directional control valves to control exhaust air speed without needing access to your cylinder.

Slow-Start Actuated Air-Exhaust Valves

Slow-Start Air-Exhaust Valves for Wilkerson Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Also known as Monday-morning valves, these valves slowly introduce pressure to reduce surge damage during start-up.

Slow-Start Air-Exhaust Valves for Festo Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Also known as Monday-morning valves, these valves slowly introduce pressure to reduce surge damage during start-up.

Slow-Start Air-Exhaust Valves for Norgren Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Also known as Monday-morning valves, these valves slowly introduce pressure to reduce surge damage during start-up.

Slow-Start Air-Exhaust Valves for SMC Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Also known as Monday-morning valves, these valves slowly introduce pressure to reduce surge damage during start-up.

Fast-Acting Pressure-Relief Valves

Adjustable Fast-Acting Pressure-Relief
Valves for Air and Inert Gas

Change set pressure to suit your application—this valve includes four interchangeable color-coded springs with different set pressure ranges.

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.

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

The most basic option for air and inert gas applications.

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.

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.

Fast-Acting Pressure-Relief
Valves for Air with Gauge Port

Attach a pressure gauge to the 1/4 NPT female port on these valves.

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 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 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.

Pressure-Relief Valves for Air and Inert Gas

Pressure-Relief Valves with
Push-to-Connect Fittings for Air

For a low-pressure seal around plastic and soft metal tubing, these valves have push-to-connect fittings.

Compact Pressure-Relief Valves

Less than a quarter of the height of standard pressure-relief valves, these are often installed on tanks in low-clearance areas.

About Pressure-Relief Valves

Air-Exhaust Control Valves

Elbow Air-Exhaust Control Valves

Elbow Air-Exhaust Control Valves with Flow Control

Air-Exhaust Control Valves

Quiet Air-Exhaust Control Valves

Made-to-Order Air-Operated Air-Exhaust Control Valves

Air-Exhaust Flow Control Valves

Slow-Start Actuated Air-Exhaust Valves

Slow-Start Air-Exhaust Valves for Wilkerson ModularCompressed Air Filter/Regulator/Lubricators (FRLs)

Slow-Start Air-Exhaust Valves for Festo ModularCompressed Air Filter/Regulator/Lubricators (FRLs)

Slow-Start Air-Exhaust Valves for Norgren ModularCompressed Air Filter/Regulator/Lubricators (FRLs)

Slow-Start Air-Exhaust Valves for SMC ModularCompressed Air Filter/Regulator/Lubricators (FRLs)

Fast-Acting Pressure-Relief Valves

Adjustable Fast-Acting Pressure-ReliefValves for Air and Inert Gas

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

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

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

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

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

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

Fast-Acting Pressure-ReliefValves for Air with Gauge Port

ASME-Code Fast-ActingPressure-Relief Valves for Steam

ASME-Code Fast-ActingPressure-Relief Valves for Water

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

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

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

Pressure-Relief Valves for Air and Inert Gas

Pressure-Relief Valves withPush-to-Connect Fittings for Air

Compact Pressure-Relief Valves

Slow-Start Air-Exhaust Valves for Wilkerson Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Slow-Start Air-Exhaust Valves for Festo Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Slow-Start Air-Exhaust Valves for Norgren Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Slow-Start Air-Exhaust Valves for SMC Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Adjustable Fast-Acting Pressure-Relief
Valves for Air and Inert Gas

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

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

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

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

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

Fast-Acting Pressure-Relief
Valves for Air with Gauge Port

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

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

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

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

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

Pressure-Relief Valves with
Push-to-Connect Fittings for Air