EZB/300 - Hansen - EZ-Relief Valve Cartridge Relief Valve, Bare

The Hansen EZB/300 is a cartridge-style pressure relief valve from the EZ-SRV™ series, designed to protect refrigeration systems from overpressure. Here's a detailed summary:

🔧 Product Overview

• Model: EZB/300
• Type: Cartridge Relief Valve (Bare)
• Pressure Setting: 300 psig
• Safe Working Pressure: 600 psig (41 bar)
• Refrigerant Compatibility: Suitable for ammonia (NH₃) and other industrial refrigerants

⚙️ Construction Details

• Body: ASME SA105 steel
• Cartridge: ASME SA395 ductile iron
• Piston: Stainless steel
• Spring: Stainless steel
• Certifications:
  • ASME Code Symbol (UV)
  • CE Mark
  • National Board Rated (NB)
• Standards: Conforms to ASME Boiler and Pressure Vessel Code and ISO 4126 for safety devices 

📦 Physical Specs

• Weight: 3 lbs.
• Condition: New
• Mounting: Typically installed in a compatible EZ fitting or manifold