EP 2947212 B1 20181121 - BACKFLOW PREVENTION VALVE AND METHOD OF PREVENTING BACKFLOW DURING WATER SUPPLY
Title (en)
BACKFLOW PREVENTION VALVE AND METHOD OF PREVENTING BACKFLOW DURING WATER SUPPLY
Title (de)
RÜCKFLUSSVERHINDERUNGSVENTIL UND VERFAHREN ZUR VERHINDERUNG VON RÜCKFLUSS BEI WASSERVERSORGUNG
Title (fr)
CLAPET ANTI-RETOUR ET PROCÉDÉ DE PRÉVENTION DE REFOULEMENT PENDANT L'ALIMENTATION EN EAU
Publication
Application
Priority
GB 201409266 A 20140523
Abstract (en)
[origin: EP2947212A1] A backflow prevention valve (30) prevents backflow during the supply of water from a mains supply to a separate water system, for example a water tank on a boat. The backflow prevention valve (30) is provided comprising a valve body (32) defining a chamber (34), an inlet (36) opening into the chamber (34) and arranged on an inlet axis (38), an outlet (40) opening from the chamber (34) and arranged on an outlet axis (42), and a funnel arranged in the chamber (34) around the outlet (40). The outlet axis (42) is substantially collinear with the inlet axis (38). The funnel tapers from a first larger perimeter at a first end (48) to a second smaller perimeter at the outlet (40). The chamber (34) has one or more backflow outlet ports (52) arranged outside the first perimeter of the funnel.
IPC 8 full level
E03C 1/10 (2006.01)
CPC (source: EP)
E03C 1/102 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2947212 A1 20151125; EP 2947212 B1 20181121; GB 201409266 D0 20140709
DOCDB simple family (application)
EP 15168624 A 20150521; GB 201409266 A 20140523