INSTALLATION, OPERATION and MAINTENANCE MANUAL | 77
APPENDIX 16.1 – Multi-piece Gaskets
Flow Gaskets
Flow gaskets, used on the flow plate and seal plate, are typically
manufactured as single piece gaskets. There are occasions where
multi-piece flow gaskets are required where the multi-piece
configuration is typically used with welded plate pairs. The fluid on the
welded side is typically more aggressive than the fluid on the gasketed
side of a welded plate pair. The multi-piece flow gasket is comprised of
three pieces which are the main section and two corner sections
(Figure 58). The main section will contain the less aggressive fluid on
the gasketed side and the corner sections contain the more aggressive
fluid on the welded side.
End Gaskets
End gaskets can be single piece or multi-piece. The typical reasons for
using multi-piece end gaskets are:
Cost – the main section of the gasket can be a less costly material
for the less aggressive fluid and the corner sections are more
costly material for the more aggressive fluid
Plate models available in various lengths, e.g.C063, C110, C134,
C158 and C205
The number of pieces for the multi-piece end gasket is dependent on
the plate model and / or gasket material being used. Viton and Parator
end gaskets are typically five-piece sections comprised of the main
section (Figure 59) and four corner sections (Figure 60).
The end gaskets for plate models with various lengths are typically
created by one of two methods. The first method is a two-piece end
gasket where two flow gaskets are cut in half vertically. The right hand
half and the left hand half create the end gasket (Figure 61). In the
second method one of the plate models will only be available in a single
piece end gasket. The other plate lengths will use the single piece end
gaskets and cut accordingly to create the multi-piece end gasket
(Figure 62). The end gasket will be a two-piece end gasket for plate
lengths shorter than the single-piece end gasket. The end gasket will be
a four-piece end gasket for plate lengths longer than the single-piece
end gasket. The four-piece end gasket will be comprised of the two end
sections and two side extension pieces.
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