Furnas brand W series pressure switches
provide time tested, reliable control
for automatic water systems. The switch
is universally accepted for use as original
equipment on water well pumps or
pumping systems. Its simple design
makes it easy to use for professionals
and non-professionals alike.
Switches combine the functions of a standard pressure switch with protection against low pressure. They prevent the pump from starting whenever the systems falls considerably below cut-in pressure. Upon restoration of the water supply, a manual reset lever is depressed until a build up of system pressure permits automatic operation.