Valve fitting especially used in pump for gas or liquid

摘要

The valve fitting has at least one valve flap (2) of elastic material and at least one all-round seal (1). The valve flap is connected to the seal by a torsion bar (3). The flap, seal and torsion bar are made in one piece. The seal may be rectangular, with the torsion bar between its two long sides. The torsion bar may be of rectangular cross-section. There may be a centering projection for the exact tension of the seal. The valve fitting may be of an elastomer material. One seal may serve two flaps and two torsion bars.