SPIRAL WOUND GASKET
Non-metal sealing filler(expanded graphite, PTFE ,asbestos , non-asbestos)withcertain width continiously spirals with steel strip ,and be spot weldedin both ofends will be a complete spiral wound gasket.According to flange's type,can be addedinner ring, outer ring or both of them, then,the gaskets will be SWGwith inner ring,or SWG with outer ring.
This gasket is good in stress compensation and sealing effect, suitable for valves with high temperature and pressure or frequently changing of temperature. Spiral wound gasket with the filler of PTFE is suggested to in application with strong acid, alkali and high demand of cleanness.
Application:
1) Temperature: -200℃ — +650 ℃
2)Pressure:42 mpa
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