Master Craft Industrial Equipment
Mueller Streamline Co. Headquarters
150 Schilling Blvd
Suite 201
Collierville, Tennessee 38017
United States
Phone: 901 753 3200
Mueller Streamline Co. International
525 Okeechobee Blvd
Suite 860
West Palm Beach, FL 33401
United States
Phone: 561 273 8300
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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
    • SAFETYMASTER® Pressure Relief Valves
    SAFETYMASTER® Pressure Relief Valves - Dimensions
    Unit of Measure
    Items SAFETYMASTER® Pressure Relief Valves
    B 34444
    SAFETYMASTER® Pressure Relief Valves - Straight Thru - Straight Thread Inlet to NPTFI Outlet     		SAFETYMASTER® Pressure Relief Valves
    B 34519
    SAFETYMASTER® Pressure Relief Valves - Straight Thru - Straight Thread Inlet to NPTFI Outlet     		SAFETYMASTER® Pressure Relief Valves
    B 34580
    SAFETYMASTER® Pressure Relief Valves - Straight Thru - Straight Thread Inlet to NPTFI Outlet     		SAFETYMASTER® Pressure Relief Valves
    A 18540
    SAFETYMASTER® Pressure Relief Valves - Straight Thru - Straight Thread Inlet to NPTFI Outlet
    Connection Size (in) N/A 7/8 ‐ 14UNF ‐ 2A N/A 1 5/16 ‐ 12UNF ‐ 2S N/A 1 5/8 ‐ 12UNF ‐ 2A N/A 7/8 ‐ 14UNF ‐ 2A
    Second Connection Size N/A 3/4 in N/A 1 in N/A 1 1/4 in N/A 3/4 in
    Second End Type N/A NPTFI
    Operating Pressure [Min] N/A 150 psi
    Operating Pressure [Max] N/A 450 psi
    Weight N/A 0.69 kg1.52 lb N/A 0.62 kg1.37 lb N/A 0.91 kg2.00 lb N/A 0.44 kg0.96 lb
    Operating Temperature [Min] N/A -40 ºC-40 ºF
    Operating Temperature [Max] N/A 149 ºC300 ºF
    A (in) N/A 7/8 ‐ 14UNF ‐ 2A N/A 1 5/16 ‐ 12UNF ‐ 2S N/A 1 5/8 ‐ 12UNF ‐ 2A N/A 7/8 ‐ 14UNF ‐ 2A
    B N/A 0.75 in N/A 1.00 in N/A 1.25 in N/A 0.75 in
    C N/A 5 in127 mm N/A 4.38 in111 mm N/A 5 in127 mm N/A 3.99 in101 mm