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Four brass pressure relief valves with 1/4 inch NPT threads, gold finish

4 Pcs 1/4" Male 125 PSI NPT Brass Pressure Relief Valve

SKU CH-44ZB-MDG7V

Four brass safety valves release air, water or oil at 125 PSI with 49 SCFM flow

  • Brass construction resists corrosion for long service life
  • 125 PSI relief pressure protects air compressor systems
  • 49 SCFM flow capacity handles high-volume discharge
  • Operates from 32 to 176 °F for wide temperature range
  • Four-piece pack supplies spares for multiple installations

Brass pressure relief valve set

The pack contains four 1/4 inch NPT threaded valves made of brass for corrosion resistance and high temperature ductility. They are designed to discharge air water or oil from an air compressor system. Each valve opens when pressure exceeds the preset level and closes again when pressure drops to the reset limit. The set provides enough units for daily use and replacement.

Upgrade from worn or missing safety valves

These valves replace components that no longer open at the correct pressure or that leak due to corrosion or debris. The jump is worth it when the existing valve fails to relieve at 125 PSI or when the thread seal has deteriorated. They suit systems that require a reliable mechanical pressure release without electronic controls.

Sustained operation up to 176 degrees Fahrenheit

The valves operate continuously in a temperature range from 32 to 176 degrees Fahrenheit and tolerate brief exposure up to 250 degrees Fahrenheit. Brass construction maintains sealing integrity under repeated thermal cycles. Flow capacity is rated at 49 scfm at the working pressure of 125 PSI. Dimensions are 0.53 by 0.51 by 1.3 inches for compact installation.

Highlights

  • Brass construction resists corrosion for long service life
  • 125 PSI relief pressure protects air compressor systems
  • 49 SCFM flow capacity handles high-volume discharge
  • Operates from 32 to 176 °F for wide temperature range
  • Four-piece pack supplies spares for multiple installations

Specifications

BrandBonuci

Questions about this item

What thread size and pressure rating must my compressor port match for these 1/4" NPT brass valves?

Each valve has a 1/4 inch NPT male thread and a 125 PSI working pressure relief setting, so the mating port must accept 1/4 NPT and the system must not exceed 125 PSI.

How do I install these valves correctly, and what common step should I avoid skipping?

Apply thread sealant or tape to the 1/4 NPT threads, tighten to the specified torque, and never omit the seal — the included thread locks only help after the threads are properly sealed.

At what temperature should I plan to inspect or replace these brass relief valves?

The valves operate from 32 °F to 176 °F continuously and tolerate up to 250 °F intermittently; inspect them if the system regularly approaches the upper limit and replace any that leak or fail to reseat.

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