Non-return valve with different flow directions has valve plates essentially fixed in position and internal cone element through which flow can pass arranged to be axially movable in housing as respective valve seat

摘要

The device has a housing (1), an inlet and an outlet as well as at least one movable valve body corresponding to a valve seat, whereby two valve bodies arranged in opposite flow directions and the valve bodies can be operated alternately with at least one control element. The valve plates (3) are essentially fixed in position and an internal cone element through which flow can pass is arranged to be axially movable in the housing as the respective valve seat.