EP 0555837 B1 19961023 - Backflow preventer
Title (en)
Backflow preventer
Title (de)
Systemtrenner
Title (fr)
Dispositif anti-retour
Publication
Application
Priority
DE 4204386 A 19920214
Abstract (en)
[origin: EP0555837A1] The invention relates to a system disconnector (10) which is composed of two backflow preventers (16,18), connected one behind the other in the throughflow direction of the medium, and of a discharge valve (22) which vents the intermediate chamber (20), between the two backflow preventers, into the atmosphere. Said system disconnector is provided with a differential-pressure stabiliser (40) which controls the differential pressure between inlet side (12) and intermediate chamber (20) at an approximately constant value. <IMAGE>
IPC 1-7
IPC 8 full level
E03C 1/10 (2006.01)
CPC (source: EP US)
E03C 1/106 (2013.01 - EP US); E03C 1/108 (2013.01 - EP US); Y10T 137/2557 (2015.04 - EP US); Y10T 137/3331 (2015.04 - EP US)
Designated contracting state (EPC)
AT CH DE FR IT LI NL
DOCDB simple family (publication)
EP 0555837 A1 19930818; EP 0555837 B1 19961023; AT E144571 T1 19961115; CA 2088748 A1 19930815; CA 2088748 C 19970318; DE 4204386 A1 19930826; DE 4204386 C2 19940120; DE 59304227 D1 19961128; US 5363875 A 19941115
DOCDB simple family (application)
EP 93102087 A 19930211; AT 93102087 T 19930211; CA 2088748 A 19930203; DE 4204386 A 19920214; DE 59304227 T 19930211; US 1664093 A 19930212