DIFFERENTIAL PRES CONTROL; SPST CLOSE ON INCREASE IN DIFF PRESS 8/70# ADJ; AMMONIA
Series P74 measures the pressure difference
between two sources: supply lines and return
lines. A change in differential pressure will
reposition the switching mechanism to cause
corrective action of the supplementary control
equipment.
Features
- Field-proven Pennswitch with a completely
enclosed contact mechanism
- Pressure differential setting is easily
changed without removing the cover