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Chose Material for
the mechanical seals |
This
chapter describes the materials commonly used in the construction
of mechanical seals and the factors influencing selection for
different applications. a mechanical seal can be split into
four main groups of components:
Flexible member( O ring, gaskets, Rubber
bellow)：NBR / HNBR / VITON / EPDM
Face (Primary Ring): Carbon / Ceramic
/ SIC / TC
Seat (Stationary Ring): Carbon / Ceramic
/ SIC / TC
Metal Parts ( Spring , Sleev, Spring hold
) : SUS304 / SUS316 / MONEL / STELLITE |
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individual seal designs vary, in almost all cases these components
can be readily distinguished. Selection of the materials used
in mechanical seals is based on experience, backed up where
necessary by laboratory testing. In normal circumstances material
selection is the responsibility of the seal manufacturer and
it is thus essential that he is provided with full details of
the fluid coming into contact with the seal. These should include
minor chemical constituents and off design conditions that can
occur in service. For instance, pumps operating in the food
or pharmaceutical industries may be subject periodically to
special sterilization procedures which can involve flushing
with different chemical fluids from those normally handled.
Detailed information : Carbon;
Tungsten;
Silicon carbide;
Flexible Member;
Elasticity Member;Other
Material
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2007 上海天示机械零部件制造有限公司 版权所有 Http://www.trisunltd.com |
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