EP 2011928 B1 20140226 - Backflow prevention assembly
Title (en)
Backflow prevention assembly
Title (de)
Rohrtrenneranordnung
Title (fr)
Ensemble anti-retour
Publication
Application
Priority
DE 102007030654 A 20070702
Abstract (en)
[origin: EP2011928A2] The arrangement (10) has an upstream backflow preventor (18) arranged in a housing (12). A downstream backflow preventor (20) is arranged coaxial to the preventor (18), and a discharge valve includes a valve seat (74) connected with a downstream side of a spring-actuated piston (76). The piston is moved perpendicular to an opening direction of the preventors, and is pressurized with input pressure over a connection duct (32) against resilience of a tensioning spring (84). The duct is directed to the preventor (18), and the valve seat and piston are formed as an integrated plastic element.
IPC 8 full level
E03C 1/10 (2006.01)
CPC (source: EP)
E03C 1/106 (2013.01); E03C 1/108 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2011928 A2 20090107; EP 2011928 A3 20110406; EP 2011928 B1 20140226; DE 102007030654 A1 20090108
DOCDB simple family (application)
EP 08154137 A 20080407; DE 102007030654 A 20070702