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Topog-E Door Joint Life

Topog-E:
When used on steam pressure vessels, Topog-E Gaskets are typically used at operating pressures of up to 180 psi (12.4 bar) and 380°F. (193°C.) for an average service life of up to one year.

Topog-E Gaskets may be used at pressures above 200 psi (14 bar), but their useful life is reduced under these severe conditions.

When used in other applications (e.g. condensate, water, and air vessels) where operating conditions are less severe, (e.g. below 250°F./121°C), Topog-E Gaskets can provide very long service lives.

Expected service life in a steam boiler application.

Topog-E gaskets are made of a rubber compound. This fact tends to make many people assume that they will have a very short service life, but this is not necessarily the case.

The following table is a general guide for estimating the approximate service life for properly installed Topog-E gaskets in steam pressure vessels:

Continuous Operating  Approxlmate Maximum
Steam pressure in psi (bar) Service life in Months
Below 25 (2)  18 - 24
25 - 100 (2 - 7)  12 - 18
100 - 180 (7 - 12)  12 - 15
180 - 200 (12 - 14)  10 - 12
200 - 225 (14 - 16)  8 - 10
225 - 250 (16 - 17)  6 - 8