EP 0339104 B1 19910904 - PLUMBING DEVICE
Title (en)
PLUMBING DEVICE
Publication
Application
Priority
EP 88106643 A 19880426
Abstract (en)
[origin: EP0339104A1] A plumbing device for preventing water from flowing back into a supply pipe possesses a cross-shaped housing (10) constructed symmetrically with respect to the median axis. A diaphragm (66), which is pressurised by the inlet pressure, is clamped between the housing (10) and a cover (70) and acts on a relief valve (110) via a valve plunger (30). Two nonreturn valves (34, 36), which can be easily exchanged when the cover (70) is removed, are arranged parallel to the valve plunger (30), and on both sides thereof, in two bores (26, 28) of the housing (10). <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 137/2587 (2015.04 - EP US); Y10T 137/2597 (2015.04 - EP US); Y10T 137/3331 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0339104 A1 19891102; EP 0339104 B1 19910904; AT E66989 T1 19910915; DE 3864681 D1 19911010; US 4895180 A 19900123
DOCDB simple family (application)
EP 88106643 A 19880426; AT 88106643 T 19880426; DE 3864681 T 19880426; US 33928089 A 19890417