Mueller AR18540 SafetyMaster Relief Valve 3/4 NPTF x 7/8-14 UNF PRV 340PSI

Features:
  • Temperature Range: -40°F/300°F, -40°C/149°C
  • Designed primarily for use on liquid receiver applications above the liquid refrigerant level (it is recommended that the factory be consulted before the valves are used on other applications)
  • Satisfy ASHRAE Standard 15 code requirements for a refrigerant vessel safety device (Application information can also be found in ASHRAE Guide and Data Book)
  • Comply with ASME code for unfired pressure vessels Discharge rates are certified by National Board of Boiler & Pressure Vessel Inspectors
  • Designed for maximum discharge capacities
  • Conforms to Pressure Equipment Directive 2014/68/EU, CRN, Compatible with all CFC, HCFC and HFC refrigerants and oils
  • CRN 0G0314.9C