Flow responsive latch for holding a spool valve in an open position

A valve 10 includes a body 14 with a spool bore 18, a supply passage 30, a tank return passage 32, and a workport 40, 44. A spool 16, in the spool bore, has a first position providing a first path between the supply passage and the workport, a second position providing a second path between the tank...

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