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When de-energized, the SV38-38 blocks flow from port 3 to port 2 or port 2 to port 3.
When energized, flow is blocked from port 2 to port 1, or from port 1 to port 2.

When de-energized, the SV58-30 allows flow from port 2 to port 1. While blocking flow at
port 3. When energized, the cartridges spool shifts to open from port 3 to port 2 , while
blocking flow out port 1, while port 1 may be fully pressurized, it is not intended to be
used as the inlet.
used as the inlet.

When de-energized, the SV90-G39X allows flow from port 2 to port 1, while blocking flow
at port 3. When energized, the spool shifts to open from port 3 to port 2, while blocking
flow at port 1.

When de-energized, the SV98-G38X allows flow from port 1 to port 3, while blocking flow
at port 2. When energized, the spool shifts to open from port 2 to port 1, while blocking
flow at port 3.