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Two brass pressure relief valves with 1/4 inch NPT male threads

2 Pcs 1/4" NPT Male 200 PSI Brass Pressure Relief Valve

SKU CH-C8D1-SWKSN

A pair of brass safety valves that automatically vent air, water or oil at 200 PSI to protect compressor tanks

  • Protects equipment from overpressure with automatic 200 PSI relief
  • Brass construction resists corrosion and handles high temperatures
  • Preset 200 PSI relief with 76 scfm flow capacity
  • 1/4" NPT male thread enables quick compressor installation
  • Two valves included for immediate use and spare convenience

Brass safety valve set

This pack contains two 1/4" NPT male brass pressure relief valves preset to 200 PSI with a 76 scfm flow rate. They protect air compressor tanks by venting excess pressure automatically. The valves suit compressed air, water and oil systems. Each unit measures 35 mm long and 14 mm wide.

Replaces worn or missing tank pop-offs

Install these when an original relief valve leaks, seizes or has been removed during service. The preset 200 PSI setting matches many common compressor tanks, so the swap is direct when the thread and pressure rating align. The pair gives a spare for the next service interval.

Sustained operation under load

Brass construction resists corrosion and handles high-temperature ductility during repeated venting cycles. The valve opens at the preset pressure, discharges at 76 scfm, then reseats when system pressure falls. This cycle repeats without manual reset, maintaining protection during continuous compressor runs.

Highlights

  • Protects equipment from overpressure with automatic 200 PSI relief
  • Brass construction resists corrosion and handles high temperatures
  • Preset 200 PSI relief with 76 scfm flow capacity
  • 1/4" NPT male thread enables quick compressor installation
  • Two valves included for immediate use and spare convenience

Specifications

BrandHONSNKS

Questions about this item

Will the 1/4" NPT male thread and 35 mm length fit my compressor tank port?

The valve has a 1/4" NPT male thread and an overall length of 35 mm (1.38 in), so it fits any tank port with matching 1/4" NPT female threads and enough clearance for the 35 mm body.

What is the correct way to thread it in without damaging the brass body?

Apply PTFE tape or pipe sealant to the 1/4" NPT male threads, then hand-tighten and finish with a wrench on the 14 mm (0.55 in) hex flats — do not clamp the valve body itself.

How often should I test or replace these 200 PSI relief valves?

Pull the test ring monthly to verify it opens at 200 PSI and reseats cleanly; replace any valve that leaks, fails to open, or shows corrosion on the brass body.

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