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Our Products
Differential Pressure Gages and Switch/Gages
All Dwyer dial-type differential pressure gages employ the
Magnehelic magnetic linkage principle to measure differential
pressures from 0.25˝ Water Column (w.c.) to 30 psig in total
pressure environments up to 500 psig. This family of gages
provides a direct indication of differential pressure on easy-to-
read 4˝ dials (Magnehelic®, Capsuhelic®, Photohelic®, and
Capsu-Photohelic®gages) and 2-1/2˝ dials (Minihelic®,Mini-
Photohelic® gages) utilizing a reliable, shockproof, diaphragm
actuated mechanism that provides a low-costgage with high
performance. While primarily applied in the measurement of
low differential pressure in air and gases, Dwyer Capsuhelic®
differential pressure gages are suitable for use with compa-
tible liquids. Standard Capsuhelic® differential pressure gages
and Capsu-Photohelic® switch/gages have aluminum bodies;
brass bodiesare available and are required for water service.
New Mini-Photohelic® differential pressure switch/gage
combines the time proven Minihelic® II differential pressure
gage with two SPDT switching setpoints.
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