EP 0219360 B1 19890719 - CONTROL DEVICE FOR A WATER SUPPLY INSTALLATION
Title (en)
CONTROL DEVICE FOR A WATER SUPPLY INSTALLATION
Publication
Application
Priority
FR 8512573 A 19850821
Abstract (en)
[origin: EP0219360A1] 1. A control arrangement for a water supply installation comprising : - an air tight and water tight enclosure (12), with an input (8) to be connected to a pump (3) with an electric control circuit (27) by means of a check valve (29), and an outlet (9) to be connected to a user device (5), and which is provided with means (13, 14) for reducing the volume of the enclosure when the pressure which prevails therein decreases, and - a first transducer for energising the electric control circuit (27) of the pump (3) when the volume in the enclosure (12) is reduced to a predetermined value, characterized in that - the check valve (29) cooperates with a second transducer (34, 35) for energising the control circuit (27) of the pump when the check valve (29) is open, the two transducers (20-26, 34, 35) being electrically connected in two parallel branches to the electric control circuit (27) of the pump, and - the first transducer (20-26) is connected to the electrical control circuit (27) of the pump by means of a relay (28) for de-energising its branch after a predetermined time period.
IPC 1-7
IPC 8 full level
F04D 15/00 (2006.01); F04B 49/02 (2006.01)
CPC (source: EP)
F04B 49/022 (2013.01)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0219360 A1 19870422; EP 0219360 B1 19890719; AT E44803 T1 19890815; DE 3664513 D1 19890824; ES 556941 A0 19870816; ES 8707588 A1 19870816; FR 2586457 A1 19870227; FR 2586457 B1 19890623; JP S6350697 A 19880303; PT 83216 A 19860901; PT 83216 B 19921030
DOCDB simple family (application)
EP 86401545 A 19860710; AT 86401545 T 19860710; DE 3664513 T 19860710; ES 556941 A 19860625; FR 8512573 A 19850821; JP 19410186 A 19860821; PT 8321686 A 19860818