Title:
BACKFLOW PREVENTER
Document Type and Number:
WIPO Patent Application WO2004090394
Kind Code:
B1
Abstract:
The invention relates to a backflow preventer (1) integrateable into a gas or liquid pipeline (2). The inventive backflow preventer consists of a closing body (3) which is embodied in the form of a hollow body which is open on a drainage side thereof and defines a passage channel (5) between itself and the central counterpart (4) opposite thereto. Said closing body (3) is displaceable by a flow medium flowing through the passage channel (5) in a flow direction (Pf 1) from a sealing contact thereof with said counter part (4) of the closing body to the open position thereof against the opposing force of elasticity and /or stability thereof. Said backflow preventer (1) is easily producible even with a small number of components and is characterised by a high flow and low pressure loss.
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Inventors:
FANGMEIER MARTIN (DE)
Application Number:
PCT/EP2004/003724
Publication Date:
December 16, 2004
Filing Date:
April 07, 2004
Export Citation:
Assignee:
NEOPERL GMBH (DE)
FANGMEIER MARTIN (DE)
FANGMEIER MARTIN (DE)
International Classes:
F16K15/14; (IPC1-7): F16K15/14
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