Bronze safety valves for air, steam, and non-hazardous grips. The valve housing is a heavy duty casting. The valve body has a wide hexagon shape to form an easy-to-install gap. The seat is precisely ground to achieve optical flatness. The double adjustment ring can make the adjustment convenient, achieve precise opening, fully reduce the pre-opening or front leakage, and the opening and closing differential pressure control is accurate. A ball bearing pivot is installed between the valve disc and the spring to correct the misalignment and compensate the lateral thrust of the spring. Grooved piston-type discs reduce sliding area and friction with lift rods.
 
Application range
●Steam boilers and generators
●Air/Gas Compressor-Reciprocating or Rotary-Portable or Fixed Intercooler and Aftercooler
● Pressure Vessel - Contains steam, air or no hazardous gases. Includes tanks, receivers, sterilizers and pressure cookers
● After the pressure reducing valve, protect the low side of the system
●6933, 6934 and 6935 are certified according to ASME Part IV
● O-ring disc, optional BUNA-N, EPR and Viton® material
 
Technical data
Size range:
1/2″ to 2 1/2″ [15 to 65mm]
Pressure Limit:
300 psig [20.7 barg]
Temperature Limit:
425°F[219°C]
Standard:
ASME VIII, ASMEI