Viking Pressure Gauge(s) give visual indication of the water or air pressure available to the fire protection system
The Potter PS40 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: Dry pipe systems, pre-action air/nitrogen supervision, pressure tanks, air supplies, and water supplies. The PS40 switch is factory set for 40 PSI (2,8 BAR) normal system pressure. The switch marked with the word LOW is set to operate at a pressure decrease of 10 PSI (,7 BAR) at 30 PSI (2,1 BAR). The switch marked with the word HIGH is set to operate at a pressure increase of 10 PSI (,7 BAR) at 50 PSI (3,5 BAR). See section heading Adjustments and Testing if other than factory set point
FLOW SWITCH – MODEL VSR
The Water flow Indicator is a vane-type water flow switch designed to detect a sustained flow of water
exceeding 10 gpm. It is intended for use on wet-pipe sprinkler systems only. The Model VSR has a
built-in adjustable pneumatic retard device delays actuation of the electrical switches to reduce the
possibility of false alarms caused by one or more transient flow surges.
UL Listed – Guide No. USQT.S309
