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Sliding gate
Fast - innovative - precise. The valve for highest demands.
The sliding gate valve principle by Schubert & Salzer
This is how easy control can be. Over 35 years ago, Schubert & Salzer Control Systems took a new approach in control valves.
We developed the sliding gate control valve: a handy, light and highly accurate valve. It operates based on a principle that had already excited Leonardo Da Vinci. Even today, it satisfies the most challenging requirements that are placed on a control valve.
The sliding gate valve series controls liquid, vapour and gaseous media precisely, quickly and economically. A sealing plate fixed in the body at right angles to the flow direction has a certain number of crossways slots of equal height. A moving disc with the same arrangement of slots moves parallelly to the fixed disc, thereby changing the flow cross section. The prevailing differential pressure presses the moving disc against the fixed disc and seals it.
This operating principle also causes a self-lapping effect of the moving disc. This surface sealing
is thus less opposed to wear, compared to globe valves with its ring seal principle. As a result the Sliding gate design offers an extremely compact, comparatively light and therefore handy valve.
The alternative when the demands are high
The sliding gate valve series controls liquid, vapour and gaseous media precisely, quickly and economically. A sealing plate ( 2 ) fixed in the body ( 1 ) at right angles to the flow direction has a certain number of crossways slots ( 3 ) of equal height.A moving disc ( 4 ) with the same arrangement of slots moves parallelly to the fixed disc, thereby changing the flow cross section. The prevailing differential pressure presses the moving disc ( 4 ) against the fixed disc ( 2 ) and seals it.