Pump in a water distribution network

Details Pump in a water distribution network Pump in a water distribution network

1992-10-21

1993-11-09

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

417 43, 417 44, F04D 1502

Patent

active

052597334

ABSTRACT:
An apparatus for on/off controlling a pump in a water distribution network, which ensures a practically constant pressure through the distribution network, comprises, within a body, a chamber having an inlet conduit adapted for connection to the delivery side of the pump and an outlet conduit adapted for connection to the network, a pressure switch placed in said chamber to issue a start signal to the pump at a predetermined pressure setting, and a flow switch placed in the outlet conduit to issue a start signal to the pump upon the occurrence of a predetermined minimum flow or a stop signal to the pump in the event of the flow being interrupted.

REFERENCES:
patent: 3918843 (1975-11-01), Douglas et al.
patent: 4247260 (1981-01-01), Schonwald et al.

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