EP 1786984 A1 20070523 - BACK FLOW PREVENTOR
Title (en)
BACK FLOW PREVENTOR
Title (de)
RÜCKFLUSSVERHINDERER
Title (fr)
DISPOSITIF ANTI-REFLUX
Publication
Application
Priority
- EP 2005006874 W 20050625
- DE 102004044850 A 20040910
Abstract (en)
[origin: WO2006027037A1] The invention relates to a back flow preventor comprising a housing provided with inlet and outlet openings and at least one leakage opening disposed between the inlet and outlet openings and closing two check valves which are arranged one behind another in the flow direction, wherein the valve body is removably disposed in the housing for releasing and interrupting the fluidic connection between the internal volume of the housing arranged between two check valves and at least one leakage opening. The aim of said invention is to improve the back flow preventor in order to provide a simplified structural design in particular in a sealing area. For this purpose, the inventive valve body is sealed with respect to the housing by means of a membrane seal connected to said valve body in such a way that it forms one piece therewith.
IPC 8 full level
E03C 1/10 (2006.01); F16K 15/06 (2006.01); F16K 24/02 (2006.01)
CPC (source: EP)
E03C 1/106 (2013.01); E03C 1/108 (2013.01); F16K 15/066 (2013.01)
Citation (search report)
See references of WO 2006027037A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006027037 A1 20060316; CN 101018917 A 20070815; CN 101018917 B 20101110; DE 102004044850 B3 20060622; EP 1786984 A1 20070523
DOCDB simple family (application)
EP 2005006874 W 20050625; CN 200580030479 A 20050625; DE 102004044850 A 20040910; EP 05755316 A 20050625