Applicationt:
Universal
Production Description:
Spiral wound gasket(gasket)
1.Gasket tape:PTFE
2.Metal spiral:standard grades1.4541,1.4571.
other materials on request
Spiral wound gasket
Special features
1.Permanent elasticity in hot-cold cycles.
2.To some degree usable in worn-out, damaged,and deformed flanges.
3.Usable under rough conditions.
4.Approximately 10% spring-back of thickness in the installed state.
Can be manufactured to order in nuclear grade according to the Burgmann quality assurance manual and verified with certificates.
Materials
1.Gasketing tape:graphite,PTFE
2.Metal spiral:standard grades 1.4541(AISI 321), 1.4571(AISI 316Ti).
other materials on request
3.Inner ring: corresponds to material of the metal spiral
4.Outer ring:generally galvanized steel, coating steel.
Operating limits
Temperature:-200~500oC(Higher temperatures in an inert environment dependent on
steel grade---please enquire)
Pressure:up to 400bar(Class 2500) for flanges according to DIN and ASME.
(higher pressure on request)
Helium tightness to 1.7*10-9mbar.l/s.
Resistant to almost all(aggressive) media(pH 0-14).