EP 0324864 B1 19911127 - LIQUID SUPPLY INSTALLATION
Title (en)
LIQUID SUPPLY INSTALLATION
Publication
Application
Priority
EP 88100561 A 19880116
Abstract (en)
[origin: EP0324864A1] Liquid supply installations normally have a drainage tank, into which are introduced certain quantities of liquid which are carried away from the discharge conduit, for example, to reduce excess pressure or to remove a second liquid. The object is to prevent undesired escape of liquids even when the drainage tank is completely full. According to the invention, all supply conduits (6, 7, 9, 29) to the drainage tank (4) lead into a common inlet conduit (13) in which is arranged a first non-return valve (14) which is closed when the drainage tank reaches its maximum filling level. A second non-return valve (15), which is closed in the event of an increase in pressure in the inlet conduit (13) caused by the closure of the first non-return valve (14), is provided in the inlet region of the discharge conduit (2). This arrangement therefore prevents in a safe manner the drainage tank (4) from overflowing. The invention can be used, for example, in refuelling installations for aircraft or in the distribution of chemicals. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0324864 A1 19890726; EP 0324864 B1 19911127; AT E69785 T1 19911215; DE 3866532 D1 19920109; ES 2023094 A4 19920101; ES 2023094 T3 19920716; GR 3003212 T3 19930217
DOCDB simple family (application)
EP 88100561 A 19880116; AT 88100561 T 19880116; DE 3866532 T 19880116; ES 88100561 T 19880116; GR 910401649 T 19911128