Flow Switch
The Model VSR-F is a vane type waterflow switch for use on wet sprinkler systems. It is UL Listed and FM Approved for use on steel pipe; schedules 10 through 40, sizes 2" thru 8" (50mm thru 200mm).
LPC approved sizes are 2" thru 8" (50mm thru 200mm). The unit may also be used as a sectional waterflow detector on large systems.
The unit contains two single pole, double throw, snap action switches and an adjustable, instantly recycling pneumatic retard. The switches are actuated when a flow of 10 gallons per minute (38 LPM) or more occurs downstream of the device. The flow condition must exist for a period of time necessary to overcome the selected retard period.
Pressure Actuiated Switch (Tamper Switch)
The Potter PS10A Series Pressure Actuated Switches are designed for the detection of a waterflow condition in automatic fire sprinkler systems of particular designs such as wet systems with alarm check valves or dry pipe systems. They may also be used to provide a low pressure supervisory signal. They may be adjusted to operate on pressure between 4 and 20 PSI (0,27 and 0,4 BAR).
Dimensions: 4 3/4" (12,1cm)W x 2 1/4" (5,7cm)D x 4 3/8" (11,1cm)H
Enclosure: Cover - Die-cast with textured red powdercoat finish Base - Plated Steel
Pressure Connection: 1/2" NPT Male
Factory Adjustment: Operates on Pressure increase at 6 ±1 PSI (0,41±0,07 BAR)
Maximum Differential: 1 PSI (0,06 BAR)
Maximum System Pressure: 250 PSI (17,2 BAR)
Switch Contacts: SPDT (Form C) 15.0 Amps at 125/250VAC, 2.5 Amps at 30VDC
Supervisory Switch
The Supervisory switch is used to monitor the open position of an OS & Y (outside screw and yoke) type gate valve. This device is available in two models; the OSYSU-1, containing one set of SPDT (Form C) contacts and the OSYSU-2, containing two sets of SPDT (Form C) contacts. These switches mount conveniently to most OS & Y valves ranging in size from 2" to 12" (50mm to 300mm). They will mount on some valves as small as 1/2" (12,5mm).
Dimensions: 6.19"L X 2.25"W X 5.88"H, 15,7cm L X 5,7cm W X 14,6cm H
Weight: 2 lbs. (0,9 kg.)
Enclosure:
- Cover - Die-Cast
- Finish - Red Spatter Enamel
- Base - Die Cast Zinc
- All parts have corrosion resistant finishes.
Cover Tamper: Tamper resistant screws, Optional cover tamper kit available.
Conduit Entrances: 2 knockouts for 1/2" conduit provided.
