Alberta Location

6556 – 28 Avenue NW
Edmonton, Alberta
T6L 6N3

(780) 232-9553

Ontario Location

8171 Yonge Street
Thornhill, Ontario
L3T 2C6


SOR Temperature Switch


SOR temperature switch utilizes a vapor pressure thermal system. Fluid vapor pressure changes predictably according to the influence of temperature on the sensing bulb. Process temperature changes cause proportional vapor pressure in the temperature sensing bulb that act on the diaphragm/piston assembly to actuate and deactuate a  snap-action electrical switching element at discrete process temperatures. The instrument’s behavior is determined by the vapor pressure principle.

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