1 1/2 Check Valves | McMaster-Carr

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Pipe Size

Body Material

Stainless Steel

Fitting Connection

For Use With

Ethylene Glycol

Hydrochloric Acid

Isopropyl Alcohol

Liquid Carbon Dioxide

Methanol (Methyl Alcohol)

Thread Type

Mounting Position

Gender

Disc Material

316 Stainless Steel

Valve Type

Reduced Pressure Zone

Check Valve Type

Spring-Loaded Ball

Spring-Loaded Piston

Pressure Class

Material

Stainless Steel

Minimum Opening Pressure

Actuation

Pipe Schedule

Connects To

Fitting Type

Color

End-to-End Length

Maximum Pressure @ Temperature

25 psi @ 70° F

125 psi @ 70° F

150 psi @ 70° F

200 psi @ 70° F

400 psi @ 70° F

600 psi @ 70° F

1,000 psi @ 70° F

1,500 psi @ 70° F

100 psi @ 75° F

720 psi @ 100° F

1,500 psi @ 100° F

1,975 psi @ 100° F

60 psi @ 140° F

175 psi @ 140° F

200 psi @ 150° F

300 psi @ 150° F

400 psi @ 150° F

600 psi @ 150° F

Maximum Temperature

Less than 250° F

300° F to 399° F

400° F to 499° F

500° F or greater

RoHS

Compliant with Exemptions

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

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

49 Products

Fluid Handling

Check Valves

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

Sump Pump Backflow-Prevention Valves

Sump Pump Backflow-Prevention Valves

Block dirty water from returning to your sump pump

Backflow-Prevention Valves

Backflow-Prevention Valves

Dual checks stop flow from reversing and contaminating your system

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

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