The model vsr is a vane type water flow switch for use on wet sprinkler systems.
Vane type flow switch working.
Gases and air being sent through the duct will physically move a paddle sitting directly in the air flow channel and this in turn will trigger an action when flow increases or decreases beyond the desired rate.
Schedules 10 through 40 sizes 2 thru 8 50 mm thru 200 mm.
This device has an internal piston which activates the switch.
Power engineering equipment company peeco flow switches have been made in the usa offered in 3 different series.
Peeco flow switches are simple mechanical devices.
The vsr may also be used as a sectional water flow detector on large systems.
Lpc approved sizes are 2 thru 8 50 mm thru 200 mm.
It is ul listed and fm approved for use on steel pipe.
A vane operated flow switch relies on fluid pushing against an internal paddle.
Variable area flow switch.
The n series non explosion proof flow switch e series explosion proof flow switch and h series high pressure explosion proof flow switch.
These devices sometimes fail and often they are incorrectly installed maintained or tampered with.
Vane or paddle type flow switches work in wet pipe systems only.
Can be used with gases liquids corrosive and high temperature fluids.
Flow switch operating principle is based on a free floating magnetic piston which responds only to the motion of fluids within the line not to static or system pressures.
These vane operated flow no flow switches come with the following advantages easily configurable flow monitoring and control.
In the presence of fluid flow controlled movement of the piston actuates an external hermetically sealed reed switch.
Designed for use wherever there is an application for a conventional flow orifice plate.
They are used in sprinkler system to transmit electrical information due to the flow when a sprinkler head gets activated.
Working principle of flow switch with animation.
As the name stipulates they feature a vane or paddle that sits in the path of water and moves when it flows.
Vane type water flow switches are used to generate a fire alarm signal based on a water flow discharge event from a wet pipe fire sprinkler system.
Much like their water paddle flow switch equivalents a paddle air flow switch sometimes known as a vane type switch is a mechanical sensor that partially protrudes into the duct being monitored.
Applications include steam flow boiler feedwater and fluid flow rates in building water lines.
As the name stipulates they feature a vane or paddle that sits in the path of water and moves when it flows.
Delay units are available to prev.
Peeco flow switch peeco flow switch.
As the flow drops to preset levels it triggers an internal magnetic mechanical and coupling switch actuation lever which essentially trips the switch.
These devices are tested at least annually sometimes quarterly.
In addition to general environments these flow switches can be used in adverse weather conditions.
