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The Opposed Piston Type
Differential Pressure
Switch
Application Information
Basic models with standard wetted parts are
normally suitable for air, oil, water and
noncorrosive process fluids. See the Quick
Selection Guide on page 4.
Corrosive service and particular user
requirements may require optional
components. See How to Order on page 3.
Operating performance of the opposed piston
type is optimized when system pressure is
relatively constant. Process or fluid power
applications that have high and varying static
pressures, high over-range, proof, shock
pressures or cycle rates may require a model
from the 102/103 series.
Design and specifications are subject to change
without notice.
Form 386
Opposed Piston
Differential
Pressure Switches
18RB
Weathertight
18S
is essentially two Static “O” Ring
type pressure sensors connected at opposite
ends of a common piston shaft. Housings are
weathertight or explosion proof. Switching
elements are SPDT or DPDT.