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Slide valves Type 3111.M002 (normally closed) and 3115.M002 (normally open) are pilot-operated, three port, two position valves with a spring-return action.
Manifold mounted versions are also available. A major feature of the valve design is elimination of the continuous leakage which is characteristic of conventional lapped-face spool valves.
The valve incorporates special high pressure seals which prevent leakage.