Oil Check Valves | McMaster-Carr

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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

Threaded Check Valves

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

37 products

High-Temperature Threaded Check Valves

The rubber seal withstands temperatures up to 500° F

16 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 Push-to-Connect Fittings for Harsh Chemicals

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

1 product

Check Valves with Barbed Fittings for Harsh Chemicals

Barbs grip onto tubing, providing a secure hold

7 products

Ultra-Chemical-Resistant Threaded Check Valves

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

5 products

Flanged Check Valves for Harsh Chemicals

Bolt to ANSI flanges

2 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

Other Products

Oil Fittings

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

6 products

Vacuum Breakers

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

10 products

Coolant Hose and Fittings

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

25 products