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Weiss
Instruments Diaphragm Seals
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Watts Regulator
Diaphragm
Seals
The Weiss Series DS Diaphragm Seals are
utilized to protect pressure indicators from harmful
process fluids. Diaphragm seals isolate pressure gauges
and prevent the medium being measured from entering the
internals of the pressure gauge.
Some instances which require utilization of a
diaphragm seal are:
Process fluid is corrosive to pressure
gauge Internees.
Process fluid is viscous and would clog
gauge internals.
Process fluid would solidify within the
pressure gauge.
The Weiss line of diaphragm seals, in conjunction with
Weiss pressure indicators, offers instrumentation that's
rugged and carefully calibrated to withstand the most
severe industrial, process or OEM service. Weiss
diaphragm seals are available in a variety of metal
housing materials and process connection sizes to fit
most requirements.
OPERATION
The pressure gauge and the instrument side
(top housing) of the diaphragm seal are solid liquid
filled. When pressure is applied, displacement of the
liquid fill in the pressure element, through movement of
the diaphragm, transmits process pressure changes
directly to the gauge.
FILLING
Fill fluids must be compatible with process
medium being measured. Common fill fluids are glycerine
and silicone. Consult factory for specific applications
and other fills.
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