H5604/300 - Hansen - P NH3 Pressure Relief Valve 1-1/4 x 1-1/2, Set@300 PSIG, POP-EYE

The Hansen H5604/300-P is a standard capacity NH₃ (ammonia) pressure relief valve designed for industrial refrigeration systems. It features Hansen’s POP-EYE™ self-alarming technology and Anti-Corrosion Technology (ACT) coating.

🔧 Technical Specifications

• Model: H5604/300-P
• Inlet/Outlet Size: 1-1/4" FPT (inlet) x 1-1/2" FPT (outlet)
• Set Pressure: 300 PSIG
• Pressure Range: 150 to 400 PSIG (10.4 to 28 bar)
• Safe Working Pressure: 400 PSIG (28 bar)
• Weight: ~8 lbs
• Dimensions: 4" W x 4" H x 7" D

🌟 Key Features

• POP-EYE™ Indicator:

  • Bright LED flashes when valve lifts.
  • 360° visibility.
  • Battery-powered (7+ year life).
  • Blinks for 2+ weeks post-activation.
  • No wiring, setup, or calibration required.
  • Not retrofittable to older valves.

• ACT Coating:

  • Multi-layer corrosion protection.
  • Standard on all new Hansen valves.
  • Reduces maintenance and extends service life.

• Construction:

  • Stainless steel insert, piston, and spring.
  • Premium virgin Teflon® seat disc.
  • Neoprene O-ring for moisture sealing.