Check valve for e.g. use in hot water-heating system, has valve plate comprising opening that is closable by another valve plate that is lifted from former plate by flow pressure, where latter plate is pre-stressed against former plate

摘要

The valve has a separating plate (10) and a valve housing, where the plate comprises an outlet opening. The opening is closable by a valve plate (30) that is lifted from the separating plate by a flow pressure. The valve plate comprises another opening that is closable by a valve plate (34) that is lifted from the plate (30) by the flow pressure, where the plate (34) is pre-stressed against the plate (30).