| This section contains details on some 26 different slide valve Types. They are paired, with 13 Types being normally closed (N/C), each with a corresponding normally open (N/O) Type. All these slide valves are pilot-operated, three port, two position valves with a spring return action. A major feature in the design of these slide valves is the elimination of the continuous leakage characteristic of conventional lapped-face spool valves. The valves all incorporate special high pressure seals which prevent leakage and all valve slides have a ‘block before bleed’ action. Construction materials comply with NACE Standard MR-01-75. |
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The following table shows some of the key differences in specification as an aid in selecting the appropriate Type. Click on any of the slide pairs in the table below for further information.

Key

A = Manifold mounted with integral pilot connection
B = Manifold mounted with remote pilot connection
C = Special seals to enable the valve to be used
C = as a selector |