By means of a pneumatic cylinder a tilting movement is transferred to the valve plate via an elastomerically sealed rotary motion feed through. The tilting movement is preceded by a brief parallel stroke. The opening position of the valve plate secures optimal conductance. This version is particularly suitable for employment as main valve.

Main characteristics:
Nominal valve widths   DN 400 DN 500 DN 630 Molecular conductance 1000 l/s 12 15 18 Leakage rate (He leak test) mbar l/s <10-8 Mass kg ca. 170 ca. 215 ca. 260 Distance Flange axle mm 320 350 430 Total height mm 649 735 870 Total depth mm 838 950 1 067 Total width mm 604 730 841 Connection suction side ISO-K Connection pressure side ISO-F

Angle valves DN 320H, DN 400H

By means of a pneumatic cylinder a tilting movement is transferred to the valve plate via an elastomerically sealed rotary motion feed through. The tilting movement is preceded by a brief parallel stroke. The opening position of the valve plate secures optimal conductance. This version is particularly suitable for employment as by-pass valve.