The grooved stainless steel core [1.4571, pitch 1,0 mm] is covered on
both sides with soft material layers made from PTFE [unsintered].
Grooved gaskets require low minimum sealing surface pressure, but can
also resist very high loads.
Grooved gaskets impress by a high
pressure application limit, low leakage rate and are therefore suitable
for extreme operation conditions.
Grooved gaskets can be
manufactured in small thicknesses so that they can be used also in
tongue and groove connections in the range of common groove depths.