Double valve has one-piece casing in which two double-plate slides are mounted, diameters of two plates on each slide being different and operating system for each slide being separate from gas channel

摘要

The double valve has a one-piece casing (1) in which two double-plate slides (30, 31) are mounted. The diameters (12, 13) of the two plates on each slide are different and the operating system for each slide is separate from the gas channel in the casing.