EP 0555837 A1 19930818 - Backflow preventer.
Title (en)
Backflow preventer.
Title (de)
Systemtrenner.
Title (fr)
Dispositif anti-retour.
Publication
Application
Priority
DE 4204386 A 19920214
Abstract (en)
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>
Abstract (de)
Ein Systemtrenner (10), bestehend aus zwei in Durchlaßrichtung des Mediums hintereinandergeschalteten Rückflußverhinderern (16,18) und einem die Zwischenkammer (20) zwischen den beiden Rückflußverhinderern in die Atmosphäre entlüftenden Ablaßventil (22) ist mit einem Differenzdruckstabilisator (40) versehen, der den Differenzdruck zwischen Eingangsseite (12) und Zwischenkammer (20) auf einem annähernd konstanten Wert regelt. <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)
Citation (search report)
- [A] EP 0320700 A1 19890621 - LANG APPARATEBAU GMBH [DE]
- [A] EP 0305557 A1 19890308 - HONEYWELL BRAUKMANN GMBH [DE]
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