Check valve with integrated overpressure valve

The invention relates to a non-return valve (1), comprising: a valve body (3), which can be moved from a closed position, in which the valve body (3) is brought into sealing contact with a first valve seat (4) against a restoring force, to an open position, in which the valve body (3) is lifted from...

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Bibliographische Detailangaben
1. Verfasser: FANGMEIER MARTIN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to a non-return valve (1), comprising: a valve body (3), which can be moved from a closed position, in which the valve body (3) is brought into sealing contact with a first valve seat (4) against a restoring force, to an open position, in which the valve body (3) is lifted from the first valve seat (4), by water flowing in a flow direction (Pf1); and an overpressure valve (5) having a closing body (6), which can be moved from a closed position, in which the closing body (6) abuts against the second valve seat (7) in a sealing manner against a restoring force, to an open position, in which the closing body (6) is lifted from the second valve seat (7) by the pressure of the water flowing back against the flow direction (Pf1), the restoring force acting on the closing body (6) of the overpressure valve (5) is greater than the restoring force acting on the valve body (3). The check valve according to the invention is characterized in that the closing body (6) of the overpressure valve (5) ha