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Certification:ISO9001, API6D
API Pressure Safety Valves , Ordinery / Bellows Safety Valve For Steam Equipment
Quick Detail:
Pressure Rating: Inlet Class 150~2500, Outlet Class 150 - 300Base Material: ASTM A216 WCB, WC6, ASTM A351-
CF8, CF8M, CF3M,MONEL, SPECIAL STEEL
Performance
Overpressure: ≤±10% of the set pressure
Blowdown: ≤±15% of the set pressure
Tightness: The valves have good seat tightness, conforms to API Std 527
Features
1. The solid nozzle screws into the body, it’s maintenance is easy.
2.The shape of the disc holder has been designed to enhance the effect of the fluid thrust for an
instant lift of the disc.
3.Blowdown control is provided with adjustable nozzle ring only.
4. The adequate materials and clearance between disc holder and guide, spindle and adjusting
screw assures disc to lift successfully.
5.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.
6.The bellows of balance 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.
7.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.
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