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Small brass safety valve with 1/4-inch NPT threads

VIAIR

VIAIR 92155 Safety Valve 155 PSI

SKU CH-FKJH-2BPQW

A 155 PSI hi-temp rated safety valve with 1/4-inch male NPT threads for air compressor systems

  • Selling UnitSet
  • 155 PSI relief pressure protects air systems from over-pressurisation
  • Hi-Temp rating maintains reliable operation in extreme heat
  • 1/4 NPT male thread fits standard compressor ports
  • VIAIR OEM heritage trusted across 12- and 24-volt applications worldwide
  • Supplied as a set for convenient installation

Safety Valve 155 PSI

The VIAIR 92155 is a 155 PSI Hi-Temp rated safety valve designed for 12- and 24-volt mobile pneumatic systems. It serves as a pressure relief component for air compressors and accessories in automotive applications. The valve features a 1/4-inch male NPT connection for standard fittings.

Installation Notes

Thread the valve into a 1/4-inch female NPT port using appropriate sealant to prevent leaks. Over-tightening can damage the brass body or strip the threads, so hand-tighten plus a slight turn is sufficient. Ensure the valve orientation allows the pressure release vent to point away from wiring or heat sources.

Suitable Applications

This valve suits builders assembling or servicing on-board air systems for 4x4 suspension, air horns, or tyre inflation kits. It is not intended for buyers needing a higher pressure rating or a different thread size such as 1/8-inch or 3/8-inch NPT. Systems requiring an integrated pressure switch or gauge port will need additional components.

Highlights

  • 155 PSI relief pressure protects air systems from over-pressurisation
  • Hi-Temp rating maintains reliable operation in extreme heat
  • 1/4 NPT male thread fits standard compressor ports
  • VIAIR OEM heritage trusted across 12- and 24-volt applications worldwide
  • Supplied as a set for convenient installation

Specifications

Selling UnitSet

Questions about this item

How can I confirm the 155 PSI safety valve is operating correctly after installation?

Pressurise the system and observe the valve venting at the rated 155 PSI setting; it should release pressure cleanly and reseat without leakage once pressure drops.

What comes in the set and is any additional fitting required for the 1/4 NPT male thread?

The set includes the 155 PSI safety valve with 1/4-inch male NPT thread; you may need a matching female NPT port or adapter depending on your air tank or compressor manifold.

Should I choose this 155 PSI model or a different pressure rating for a 12- or 24-volt VIAIR compressor system?

Select the 155 PSI valve when your system’s maximum working pressure is 155 PSI; match the valve rating to the compressor’s cut-out pressure for proper over-pressure protection.

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