Size：1" D 2"～ 20" × 24"
Pressure：（150～2500） lb
Temperature：（-196～+427）°C

Features：
(1) The shape of the disc holder has been designed to enhance the effect of the fluid thrust for an instant lift of the disc;
(2) Blowdown control is provided with adjustable nozzle ring only;
(3) The adequate materials and clearance between disc holder and guide, spindle and adjusting screw assures disc to lift successfully;
(4) The surface of both the disc and the nozzle seat is deposited with Stellite. Excellent flatness and surface finish of the seating surfaces by precision machining and lapping assure safety valve to have high degree of seat tightness and long using life
(5) The bellows of balanced bellows safety valves not only can avoid and effect of variable back pressure in the system, but also can protect spring and other trim components from corrosive media;
(6) The choice of materials is careful. The manufacture of the spring and the bellows has strict technological process. Each of them is tested and checked strictly.

Customer Reference
Daqing Petrochemical Plant, Jilin Chemical Corp., Panjin Ethylene Company, Urumqi Fertilizer Plant, Lanzhou Petrochemical Corp., Beijing No.2 Chemical Plant, Yanshan Petrochemical Corp., Qilu Petrochemical Corp., Yangzi Petrochemical Corp., shanghai Petrochemical Corp., Jinling Petrochemical Corp., Guangzhou Petrochemical Plant, Maoming Petrochemical Corp., Etc.