Large Orifice Safety Relief Valves

Salient features of Large Orifice Safety Relief Valves:
a c The solid nozzle screws into the body, which makes maintenance convenient.
a c The elaborate design for the figuration and dimension of the disc holder and ring makes the valve suddenly surge to 100% lift at low overpressure.
a c Blowdown can be easily adjusted by revolving the ring only.
a c Appropriate materials of relative parts and adequate clearance between disc holder and guide make disc lift flexibly.
a c Sealing and pressed faces of the disc and nozzle are deposited with Satellite. Low leakage and long service life can be acquired by polishing the deposited faces carefully.
a c Bellows can not only avoid the effect of variable back pressure, but also protect spring and other components from corrosive media.
a c Unique process method of spring and bellows are tested and checked strictly.

Codes and Standardsi API527i API 526i ASME a

Performance
HTO-conventional i HTB- Bellows
Size i 1" D 2"- 8" T 10"
Flange class i 150 lb -2500 lb
Temperature i -196-+ 538 A C