Safety Valve （Pressure Relief Valve）With Jacket
Size: 2”-12”, DN50-DN300
Inlet Flange Pressure: 150Lb-2500LB
Available Material WCB, WC6, WC9, C12A
ISO 4126-1 : Safety Devices for Protection Against Excessive Pressure Part 1: Safety Valves
API STD 526 : Flanged Steel Pressure Relief Valves
API STD 527: Seat Tightness of Pressure Relief Valves
ASME, Boiler and Pressure Vessel Code,Section VⅢ Division 1,Rules for Construction of Pressure Vessels
It’s serviced in the circumstance where the heat preservation of fluid is needed, such as the equipment of polyester,ethylene,urea,etc.
Body including inlet and outlet flanges is heat preserved,so the effect is very well.
The function of vapor flushing and blowing can be added ,if needed.
Balanced bellows construction protects set pressure from being affected by variable back pressure,and the parts in bonnet, such as spring,from being corroded.
The surface of both the disc and the nozzle seat are deposited with Stellite.Excellent flatness and surface finish of the seating surfaces by precision machining and lapping assure pressure relief valve to have high degree of seat tightness and long using life.
Urea level 316L mod,urea level duplex stainless steel internal parts and Ti bellows can be provided as required
Applied to ASME VⅢ standard,discharge capacity has been proved by NBBI.