5 Mounting
2310014218/00 EN
Figure3: Flanges
▪ Pipe flange sealing surfaces
– Clean and undamaged
– Without any damage along the radial surface such as scratches, dents
or points of impact
– The surface quality of the sealing surface must be suitable for the gas-
ket being used
▪ Installation material (screws, nuts, washers)
– Clean and undamaged, particularly the threads and contact surfaces
5.2 Gasket requirements
When selecting the gaskets, observe the following notices:
▪ Ensure that the design of the gasket and sealing groove are state-of-the-
art.
▪ Use new and clean gaskets.
▪ Use O-rings or flat gaskets in accordance with the following mounting de-
scription.
▪ Never use paper seals.
▪ Gasket material:
– The material must be chemically resistant to the insulating fluid used to
prevent later leaks due to chemical degradation.
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