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Fire Pump Automatic Start with By-Pass

For fire pump automation

Opening of Fire Hydrant
Initial flow through flow switch on a by-pass (secundary circuit), preferencial way by the retention valve mounted in main circuit, turning the pump on.

Closing of Hydrant Water Output
The flow switch automatically will turn the pump off.

Upper tank
Atmospheric pressure
2 1/2" pipe
1" pipe
Main Contactor
min. h = 4 m
Hydrants network
VRRetention valve
Auxiliary Contactor
Accionamento automático de bomba de incendio en red de hidrantes usando by-pass y Sensores de Flujo Eicos


S Flow Switch FC10B02

VR Retention valve

BP by-pass