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ETM DIN Standard Long Life & Bonnet Bellows Seald Stop 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.
ETM FIG.L.961/962/963
ETM DIN Standard Long Life & Bonnet Bellows Seald Stop Valves
Bellow Globe Valve / Feature:
Double wall bellows seal as standard
Heat dissipating bonnet design
Circlip fixing device
Storage of oil device
Bellows seal welded to stem
Stem back seal
FIGURE. L series products bellows are completed with triple wall made of SS316L material. 
Bellows seal 8,000 load cycles
Yoke gasket,double chambered
Plug with marginal seat Welded seat in stellite or Cr-steel
External stem thread
Actuator retrofitting Secondary sealing: gland packing
Stem with roll hardened thread
DIN PN:PN16,PN25,PN40,PN63
DIN DN:DN250-DN400
Temperature Rating:-40°C up to +420°C
Body forms:Straight pattern body, Y-pattern body, Angle pattern body Basic shell material:Low temperature carbon steel, Carbon steel, High temperature carbon steel, Stainless steel, High temperature stainless steel, High chromium stainless steel, Hastelloy, Inconel, Pure nickel, Titanium, Other special alloys.
Connections:Flanged ends, Butt welding ends, Socket welding ends, Threaded ends, Other requirements
Operation:Handwheel, Lever, Chainwheel, Gear operator, Pneumatic piston actuator, Pneumatic diaphragm actuator, Electric actuator
Bellows Globe Valve / Applications: Industry, power stations , flue gas purification plant, processing technology, gas supply, vapour facilities, recycling facilities, vacuum facilities, hot water, heating technology, district heating, thermal oil applications, general plant manufacturing, etc.
Bellows Globe Valve / Mediums: Steam, gases, hot water, thermal oil, process water, vacuum facilities, ammonia etc.
Standard material : GP240GH (1.0619/GS-C25),G-X6CrNi18.9(1.4308),G-X6CrNiMo18.10 (1.4408)
Design&manufacture standard conforms to EN 13709
Face to face standard conforms to EN 558-1
Flange standard conforms to EN 1092-1
Test conforms to EN 12266