Gasket type and material in natural gas piping systems
Gasket type and material in natural gas piping systems
(OP)
In a natural gas medium pressure aboveground piping system, what type and material of gaskets have others used between a 125# cast iron valve flange and 150# steel pipe flange with the raised portion machined down?
Has anyone successfully used a spiral wound metal gasket?
Has anyone successfully used a spiral wound metal gasket?





RE: Gasket type and material in natural gas piping systems
I would not try to use a spiral wound gasket in your situation.
Do you think there is some need for the spiral wound, ie fire?
RE: Gasket type and material in natural gas piping systems
RE: Gasket type and material in natural gas piping systems
Thanks for your response.
Have you ever used the Flexitallic type CG when connecting the 150# steel pipe flange to the 125# cast iron valve flange?
If you have did you have any problem with stressing the cast iron?
RE: Gasket type and material in natural gas piping systems
RE: Gasket type and material in natural gas piping systems
RE: Gasket type and material in natural gas piping systems