3/4"x1"FPT 300# Relief Valve

Henry Technologies 5602-300 Relief Valve – 3/4" x 1" FPT, 300 PSI

The Henry Technologies 5602-300 Relief Valve is a high-quality, durable pressure relief valve designed to protect refrigeration and industrial systems from excess pressure. Constructed with brass and iron components, this valve is factory set and sealed to ensure reliable and consistent operation at the designated pressure setting of 300 PSI. Ideal for use with various refrigerants including R12, R22, R134a, and industrial fluids, this valve meets stringent ASME and National Board certifications.

Key Features:

• Connection Size: 3/4" x 1" Female Pipe Thread (FPT)

• Pressure Setting: 300 PSI (standard, other settings available)

• Material: Brass body with steel cap, stainless steel internals, Teflon or Neoprene seats

• Temperature Rating: -40°F (-40°C) to +225°F (+107°C)

• Designed with “Center Leading Pivot” for secure reseating and minimal leakage

• Certified ASME-UV and National Board for safety and reliability

• Suitable for ammonia, HFC, CFC refrigerants, and non-corrosive industrial fluids

• Positive pressure relief with factory set and sealed calibration

• Protective lacquer finish for enhanced corrosion resistance

• Unique serialization for easy tagging and compliance

Applications:

• Refrigeration safety relief to prevent overpressure damage

• Industrial fluid pressure management

• Compliance with ANSI/ASHRAE 15 and local refrigeration safety codes

• Country of Origin: USA

Important Notes:

• Orders must specify pressure setting and refrigerant/fluid type

• Standard settings include 235, 300, 350, 400, 425, and 450 PSI

• Compliance with Proposition 65 (California residents)

Protect your systems with the reliable and precision-engineered Henry Technologies 5602-300 Relief Valve — trusted by HVAC and refrigeration professionals nationwide.

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