1/4 Check Valves | McMaster-Carr

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System of Measurement

Pipe Size

Body Material

Stainless Steel

Thread Type

For Use With

Deionized Water

Ethylene Glycol

Fitting Connection

Push to Connect

Minimum Opening Pressure

Maximum Pressure @ Temperature

25 psi @ 70° F

125 psi @ 70° F

150 psi @ 70° F

200 psi @ 70° F

220 psi @ 70° F

300 psi @ 70° F

400 psi @ 70° F

500 psi @ 70° F

1,000 psi @ 70° F

2,000 psi @ 70° F

3,000 psi @ 70° F

125 psi @ 150° F

200 psi @ 150° F

300 psi @ 150° F

400 psi @ 150° F

600 psi @ 150° F

25 psi @ 176° F

400 psi @ 180° F

Gender

Connects To

Actuation

Piston Material

316 Stainless Steel

Fluoroelastomer

Shape

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 499° F

500° F or greater

Seal Material

304 Stainless Steel

Spring Material

Stainless Steel

Check Valve Type

Spring-Loaded Ball

Spring-Loaded Piston

Mounting Position

Valve Type

Tube OD

Tube ID

Flow Coefficient (Cv)

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

How can we improve?

127 Products

Fluid Handling

Check Valves

Permit flow in only one direction by closing when flow stops or reverses

Vacuum Breakers

Vacuum Breakers

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

Flame Arresters

Flame Arresters

Absorb heat from a fire in your gas pipeline to stop it from traveling back to the gas source

Power Transmission

Hydraulic Check Valves

Hydraulic Check Valves

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

Air Flow Check Valves

Air Flow Check Valves

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

Fastening and Joining

Welding Gas Flashback Arresters

Welding Gas Flashback Arresters

Attach to your gas welder to extinguish flames and stop reverse gas flow

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)