New One Quarter Inch NPT Air Compressor Relief Valve 165 PSI 64 SCFM Tank Pop Off Brass Construction With Stainless Steel Spring And Silicone O Ring For Leak Proof Seal And Precise Pressure Relief

Leak-Proof 165 PSI 1/4-In NPT Air Relief Valve, single unit
✔️ Brass body, 165 psi relief, 1/4 in NPT inlet, 64 SCFM

This compact relief valve is designed for air compressors and pressurized tanks. It vents excess pressure at 165 psi and reseals to prevent leaks, making it ideal for home shops and small workshops.

✅ Brass body with stainless steel spring for corrosion resistance.
✅ 165 psi preset relief with +/-3% accuracy.
✅ Silicone O-ring provides leak-proof seal within +/-10% of relief pressure.
✅ 1/4 in NPT male inlet (6.35 mm) with approx 13.7 mm OD
✅ 64 SCFM flow, max temp 250°F (121°C), ASME UV/NB safety marks

💡 What is an air compressor relief valve used for and how does it work in pressure vessels?

This handy device protects air systems from overpressure and helps maintain safe operating pressure by venting excess pressure and reseating at the set point. - Protects air tanks, hoses, and piping from dangerous pressure buildup
- Automatically vents at the designated relief pressure and reseats when pressure drops
- Helps meet safety codes (ASME UV/NB) in home and workshop setups