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Nickel-plated brass check valve with female and male NPT threads

VIAIR

VIAIR 92833 Check Valve .375 Female to .375 Male NPT Nickel Plated fitting

SKU CH-RFB9-C382W

A .375 NPT nickel-plated check valve that lets air flow one way between tank and compressor

  • TypeConduit Fittings
  • Prevents backflow into compressor with one-way check valve design
  • Nickel-plated finish resists corrosion in harsh environments
  • 375 NPT female to 375 NPT male threads for direct fit
  • Trusted by OEMs for 12 and 24 volt mobile pneumatic systems
  • Built by VIAIR, industry standard for air suspension components

VIAIR 92833 Check Valve for Air Systems

The VIAIR 92833 is a nickel-plated check valve designed for mobile pneumatic applications. It allows air to flow in one direction only, typically installed between an air tank and compressor to prevent backflow. The fitting features a .375 female to .375 male NPT thread configuration. It suits 12- and 24-volt automotive air systems used on-road and off-road.

Verify Thread Size and Flow Direction Before Fitting

Confirm that your existing air tank and compressor ports match the .375 NPT thread specification on both ends. Ensure the valve orientation matches the required flow direction from compressor to tank. The valve is a conduit fitting type intended for air lines; check compatibility with your specific plumbing layout and component port sizes.

Nickel-Plated Brass Resists Corrosion in Harsh

The nickel-plated construction protects against corrosion in extreme environments from arctic cold to desert heat. As a passive mechanical valve, it draws no electrical power and generates no operational noise or heat. It maintains a seal under normal system pressures to keep the air supply ready for suspension or accessory use.

Highlights

  • Prevents backflow into compressor with one-way check valve design
  • Nickel-plated finish resists corrosion in harsh environments
  • 375 NPT female to 375 NPT male threads for direct fit
  • Trusted by OEMs for 12 and 24 volt mobile pneumatic systems
  • Built by VIAIR, industry standard for air suspension components

Specifications

TypeConduit Fittings

Questions about this item

Does the VIAIR 92833 check valve include any thread sealant or mounting hardware, or must I buy those separately?

The valve ships as a single nickel-plated fitting with .375 Female to .375 Male NPT threads; thread sealant and any mounting brackets are not included and must be purchased separately.

Should I choose a different thread size or is the .375 NPT version correct for standard VIAIR compressor-to-tank connections?

The .375 NPT size matches the common port on many VIAIR compressors and tanks; select this version when both components use 3/8-inch NPT threads.

How does the one-way flow design affect pressure retention between a 12- or 24-volt compressor and the air tank?

The internal check mechanism allows air to enter the tank but blocks reverse flow, so tank pressure cannot leak back through the compressor head when the unit cycles off.

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