The unit may also be used as a sectional waterflow detector on large systems.
Vane type water flow switch.
The basics of water flow switches.
Flow switches vsr s vane type waterflow alarm switch with retard for small pipe the model vsr s is a vane type waterfl ow switch for use on wet sprinkler systems that use 1 25mm 1 32mm 1 38mm or 2 50mm pipe size.
The model wfdnft is a vane type water flow detector for use in wet pipe fire sprinkler systems only.
It is ul listed for use on a steel pipe.
Lpc approved sizes are 2 thru 8 50 mm thru 200 mm.
Vane type water flow detectors shall not be used as the sole initiating device in both deluge and preaction systems.
The potter vsr series is the industry standard for flow switches for fire sprinkler systems and is compatible with the widest range of.
But in dry systems where water quickly replaces compressed air when sprinklers activate that paddle could be damaged or broken off.
Delay units are available to prev.
Removal of waterflow switch to prevent accidental water damage all control valves should be shut tight and the system.
It is ul listed and fm approved for use on steel pipe.
These devices are tested at least annually sometimes quarterly.
The model vsr is a vane type waterflowswitch for use on wet sprinkler systems.
Schedules 10 through 40 sizes 2 thru 8 50 mm thru 200 mm.
The model vsr s is a vane type waterflow switch for use on wet sprinkler systems that use 1 25mm 1 32mm 1 38mm or 2 50mm pipe size.
It is ul listed and fm approved for use on steel pipe.
A minimum flow of 10 gpm 38 lpm is required to activate this device.
Schedules 5 through 40.
Models available for pipe sizes 2 through 10.
The potter vsr is a vane type waterflow switch with non corrosive insert for use on wet sprinkler systems.
These devices sometimes fail and often they are incorrectly installed maintained or tampered with.
They are used in sprinkler system to transmit electrical information due to the flow when a sprinkler head gets activated.
Instrumentation products flow measurement flow switch vane type ask price flow switch is the target type unit that works on the magnetic principle of attraction.
As the flow causes the flapper to deflect the magnet moves closer to or further away from the switch causing the reed switch to actuate.
The vsr may also be used as a sectional water flow detector on large systems.
As the name stipulates they feature a vane or paddle that sits in the path of water and moves when it flows.
The model vsr is a vane type water flow switch for use on wet sprinkler systems.
The unit contains two single pole double throw snap action switches and an adjustable instantly recycling pneumatic.
