Technical Specifications Category Specification Type Pilot-Operated Back Pressure Regulator / Relief Valve Models Type 1808: Globe Body Type 1808A: Angle Body Service Gas or Liquid Body Size & Connection 2 Inch NPT (National Pipe Thread) Maximum Inlet Pressure 150 psig (10.3 bar) Pressure Setting Range 3 to 125 psig (0.21 to 8.6 bar). Typically achieved with different pilot spring ranges. Temperature Range -20° to 180°F (-29° to 82°C) Pilot Connection 1/4 Inch NPT Approximate Weight Type 1808: 22 lb (10 kg) Type 1808A: 25 lb (11 kg) Pilot Types Available for standard relief, differential, vacuum relief, and temperature actuation.