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Two brass NPT valves with copper finish, 1.3 by .51 inches

2 Pcs 1/4 Inch NPT 175 PSI Brass Pressure Relief Safety Valve

SKU CH-TW11-2KZYC

Two brass 1/4-inch NPT valves relieve pressure at 175 PSI and handle -65 °F to 250 °F

  • Two-valve set covers replacement and spare needs
  • Brass construction resists corrosion in air, water and oil systems
  • 175 PSI relief pressure protects equipment from overpressure
  • Automatic reset after activation restores normal operation
  • Rated from -65 °F to 250 °F for high-temperature reliability

Two-Piece Brass Valve Set

This set includes two 1/4 inch NPT brass pressure relief valves rated for 175 PSI. They suit air compressor systems, water lines and oil circuits in workshop or automotive maintenance tasks.

Sealing Thread Locks Included

Each valve arrives with integrated sealing thread locks so no separate tape or compound is required during installation. The PTFE component aids leak-free engagement on NPT threads straight from the package.

Brass Construction With Wide Temperature Range

Brass bodies resist corrosion while handling continuous temperatures from -65°F to +250°F. Automatic opening at the preset pressure protects downstream equipment and reseats once pressure normalises.

Highlights

  • Two-valve set covers replacement and spare needs
  • Brass construction resists corrosion in air, water and oil systems
  • 175 PSI relief pressure protects equipment from overpressure
  • Automatic reset after activation restores normal operation
  • Rated from -65 °F to 250 °F for high-temperature reliability

Specifications

BrandPsyqtsuary

Questions about this item

How often should the brass relief valve be inspected or replaced in normal service?

Brass construction resists corrosion and handles temperatures up to 250 °F, so the valve typically lasts years; inspect annually for seat wear or leakage and replace if it no longer reseats at 175 PSI.

What limits continuous operation before the valve opens repeatedly?

The 175 PSI set pressure is the first limit reached under sustained use; once system pressure hits that point the valve vents automatically until pressure drops below the reset threshold.

Does the valve generate noticeable noise or heat when it cycles all day?

Venting at 175 PSI produces a sharp hiss each cycle, but the brass body dissipates heat quickly and the PTFE seal remains stable across the -65 °F to 250 °F range.

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