AV TRYCK FRAN GENOMSTROMMANDE MEDEL STYRD VENTIL

摘要

A valve consisting of a housing having an input opening defining a valve seat and a valve plate disposed over the input opening on the valve seat. The valve plate includes a radial support shoulder and the housing is provided with a plurality of axial ribs on its inside periphery, each of the ribs having a radial groove. An abutment plate is disposed above the valve plate and engages the radial grooves formed in each of the axial ribs. A plurality of spring bars having one end clamped to the shoulder of the valve plate and the opposite end clamped to the abutment plate are axially tensioned and inclined with respect to the stroke movement of the valve plate so that the force components of the spring bars in the direction of the stroke movement decreases in total force with respect to the force of the spring acting on the closed valve plate.