Pressure Switch

Honeywell DPS400 Series Differential Pressure Switches are mostly used for monitoring filter, fan, fire damper, or air flow status of air handling systems. Switching-point easily adjustable with scale in Pascal, Direction of M20x1.5 conduit entry can be rotated in steps of 120°. Only one screw needed for housing cover.

Potter PS10-EX Pressure Actuated Switch is designed for the detection of a waterflow condition in automatic fire sprinkler systems located in hazardous locations classified as shown above. Typical applications are: Wet pipe systems with alarm check valves, dry pipe, preaction, or deluge valves.

Potter PS25 Series Supervisory Pressure Actuated Switches are designed primarily to detect an increase and/or decrease from normal system pressure in automatic fire sprinkler systems. Typical applications are air/nitrogen supervision in the dry pipe and pre-action systems, pressure tanks, air supplies, and water supplies. The PS25-2 has two switches. The Low switch is factory set to activate at approximately 18 psi (1,2 BAR) on a decrease in pressure. The High switch is factory set to activate at approximately 28 psi (1,9 BAR) on an increase in pressure. NFPA 72 requires a supervisory signal for both high and low pressure conditions.