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DIN bellows globe Valve

date:[2015-11-28]    Click: DIN bellows globe Valve

DIN Bellows seal globe valve

Bellows Seald Globe Valves are zero emission and maintenance free. An uninterrupted metallic barrier is positioned between the piping and the environment. The components that during valve operation are subject to relative movements are welded onto the extremities of a metallic bellows that absorbs and compensates the shifting. Hence these valves are suitable for any fluid and are recommended when zero emission characteristics are required to protect the environment and the health of the workers from pollutive leaks, to prevent expensive wastes due to loss of energy and fluid, and to eliminate the not negligible cost of replacement of the packing. In conclusion, the valves are particularly suitable for dangerous, inflammable,lethal and explosive media.

Application:Industry, powerstations, flue gas purification plant, processing technology, gas supply, vapour facilities, recycling facilities, vacuum facilities, hot water, thermal oil applications, general plant manufacturing, 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 :≤425 ℃

Fig No. :WJ25141

Technical specification

●Design Standard: DIN 3356 / EN 13709

●Face To Face: DIN3202 / EN 558-1

●Flange ends: DIN2543-2545 / EN 1092-1

●Test & Inspection: DIN 3230 / EN 12266

Features of bellows seal valves:

●Double wall bellows seal as standard.

●Plug with marginal seat

●Bellows seal welded to bonnet

●Welded seat

● Bellows seal 10,000 load cycles

● External stem thread

●Secondary sealing: gland packing(with bridge)

● Stem back seal

● Yoke gasket, double chambered

● Stem with roll hardened thread