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Features:
  • Design Pressure (DP) / Maximum abnormal pressure (MAP): 700 psig, 48 bar
  • Continuous operating temperature (COT): -40°F/300°F, -40°C/149°C
  • Contact factory or visit website for compatibility with CFC, HCFC, HFC and HFO refrigerants and oils
  • UL/cUL Recognized, Conforms to Pressure Equipment Directive 2014/68/EU
  • 100% tested
  • Design features easy removal and reassembly of internal components
  • Forged brass body exceeds the most stringent quality standards in the industry
  • Horizontal or vertical installation (not to be installed with bonnet facing down)
  • "Y" type design provides minimal pressure drop and increased flow capacity
  • Non-asbestos gasket material ensures seal integrity, while a heatstabilized PTFE seat provides seal across wide temperature ranges.
  • Back pressure shutoff at low pressure differentials
  • CHECKMASTER® Check Valves - Four-Bolt
    CHECKMASTER® Check Valves - Four-Bolt - Dimensions
    Unit of Measure
    1 

    Item #

    Connection Size

    Pressure to Open

    Rec Bolt Torques

    Weight

    B 34235 N/A 7/8 in N/A < 1 bar< 0.07 psi N/A 8 to 15 ft·lb11 to 20 N·m N/A 1.08 kg2.39 lb
    B 34236 N/A 1 1/8 in N/A < 1 bar< 0.07 psi N/A 8 to 15 ft·lb11 to 20 N·m N/A 1.04 kg2.29 lb
    B 34237 N/A 1 3/8 in N/A < 1 bar< 0.07 psi N/A 10 to 20 ft·lb14 to 27 N·m N/A 2.33 kg5.14 lb
    B 34238 N/A 1 5/8 in N/A < 1 bar< 0.07 psi N/A 10 to 20 ft·lb14 to 27 N·m N/A 2.36 kg5.20 lb
    B 34239 N/A 2 1/8 in N/A < 1 bar< 0.07 psi N/A 10 to 20 ft·lb14 to 27 N·m N/A 5.55 kg12.23 lb
    B 34240 N/A 2 5/8 in N/A < 1 bar< 0.07 psi N/A 15 to 25 ft·lb20 to 34 N·m N/A 12.55 kg27.67 lb
    B 34241 N/A 3 1/8 in N/A < 1 bar< 0.07 psi N/A 15 to 25 ft·lb20 to 34 N·m N/A 12.16 kg26.80 lb
    Unit of Measure
    1