Cast Steel Bellow Globe Valve is suitable for medium pressure PN1.6 ~ 16MPa, working temperature -29 ~ 350 °C flammable, explosive, highly toxic, toxic fluid, high temperature heat transfer oil, liquid ammonia and other media.
Widely used in: petrochemical, chemical fiber textile, plastic paper, electric steel, printing and dyeing rubber, natural gas and other gas systems, the performance is safe and reliable, widely used in industrial fluids such as ethylene glycol. The driving methods are manual, gear transmission, electric, pneumatic and so on.
Application：Hot oil system, steam system, hot and cold water system etc.
Medium:Steam, gases, hot water, thermal oil, ammonia etc.
Materials : GG25(EN-GJL-250),GGG40,1.0619+N(GS-C25),1.4308(CF8), 1.4408(CF8M)
Materials of bellows: SS304, SS316, SS316L,SS 310S ,Hastelly C
Size range : DN15-DN400
Pressure : PN16-PN40
Temperature : ≤600 ℃
1.Bellow seal element. The key part of bellow sealed globe valves is metal bellow. It is the connection between cover and stem with automatic roll welding. The metal bellow can keep the stem part no leakage.
2.Benefit from the con and streamline shape design, the disc has a reliable seal and longer service life.
3.Double seal design(bellows+packing). Bellow and packing can protect against leakage and provide a excellent seal.
4.Grease nipple. It can direct lubricate the stem, nut and sleeve.
5.Ergonomic hand wheel. It provide longer service life and easier operation.
Design standard: DIN 3356
Face to face dimension: DIN 3202
Flange ends: DIN 2543-2545
Test & inspection: DIN 3230
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