Oil Check Valves | McMaster-Carr

Filter by

System of Measurement

Pipe Size

For Use With

Body Material

Thread Type

Fitting Connection

Material

Gender

Maximum Pressure @ Temperature

Minimum Opening Pressure

Mounting Position

Connects To

Check Valve Type

Seal Material

Valve Type

Shape

Maximum Temperature

Fitting Type

Tube OD

Actuation

End-to-End Length

RoHS

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

Exempt

Forward

How can we improve?

Help me decide (beta)

202 Products

...

Check Valves

Check Valves for Oil and Fuel

Threaded Check Valves for Oil and Fuel

Open to allow flow in one direction and close when flow stops or reverses

18 products

High-Pressure Threaded Check Valves for Oil and Fuel

Rated for at least four times the pressure of standard check valves for oil and fuel

12 products

High-Temperature Threaded Check Valves for Oil and Fuel

A fluoroelastomer seal withstands temperatures up to 500° F

6 products

Flange-Mount Check Valves for Oil and Fuel

Install between ANSI flanges

6 products

Socket-Connect Check Valves for Oil and Fuel

Insert unthreaded pipe into the socket ends and weld to create a permanent, leak-tight connection

3 products

Plastic Threaded Check Valves for Oil and Fuel

Plastic provides a lightweight alternative to metal

13 products

Check Valves

High-Temperature Threaded Check Valves

The rubber seal withstands temperatures up to 500° F

16 products

Threaded Check Valves

Open to allow flow in one direction and close when flow stops or reverses

37 products

Check Valves with Push-to-Connect Fittings

Insert tubing into the fitting without needing heat, solder, or flux

5 products

Check Valves for Harsh Chemicals

Threaded Check Valves for Harsh Chemicals

Open to allow flow in one direction and close when flow stops or reverses

8 products

Check Valves with Barbed Fittings for Harsh Chemicals

Barbs grip onto tubing, providing a secure hold

7 products

Flanged Check Valves for Harsh Chemicals

Bolt to ANSI flanges

2 products

Ultra-Chemical-Resistant Threaded Check Valves

A PFA body withstands methyl ethyl ketone, sodium hypochlorite, and other harsh chemicals

5 products

Easy-Install Threaded Check Valves for Harsh Chemicals

Reduce installation time and allow for maintenance without detaching pipe connections

11 products

Socket-Connect Check Valves for Harsh Chemicals

Insert unthreaded pipe into the socket ends and weld to create a permanent, leak-tight connection

11 products

Check Valves with Push-to-Connect Fittings for Harsh Chemicals

Insert tubing into the fitting without needing heat, solder, or flux

1 product

Other Products

Oil Fittings

Install in engine blocks and other machinery to pour in oil while keeping dust out

6 products

Coolant Hose and Fittings

Build a custom system to deliver coolant, cutting oil, water, or air in any direction

25 products

Vacuum Breakers

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

10 products