Hydraulic or pneumatic control valve - has two spring-loaded coaxial slides movable relatively to each other

摘要

The control valve is for hydraulic or pneumatic purposes with a slide casing, a valve housing and a slide device for opening and closing inlet and outlet holes in the slide or valve housing. The slide device consists of two coaxial slides which can move together and relatively to each other. A spring is arranged between the slides and a central chamber is fitted to the free ends of the slides. The free ends of the slides have projections.