Sub-plate mounted valve

A manifold assembly, comprising:

• a manifold block having
• a valve pocket,
• a supply port,
• a return port, and
• a function port;
• and
• a sub-plate mounted valve installed in the valve pocket, the sub-plate mounted valve, comprising:
• a valve body, the valve body further comprising:
• a cage defining a supply hole for fluid flow between the valve body and the supply port, a return hole for fluid flow between the valve body and the return port, and a function hole for fluid flow between the valve body and the function port, and
• a valve cap coupled to the cage,
• a valve spool disposed within the valve body, the valve spool being movable along a longitudinal axis of the valve body between a first position wherein fluid can flow between the supply hole and the function hole, and a second position wherein fluid can flow between the return hole and the function hole;
• and
• a pilot-operated piston disposed on the outer circumference operable to move the valve spool between the first and second position when pressure is supplied.

A sub-plate mounted valve, comprising:

• a valve body, the valve body comprising:
• a cage defining a first passage, and a function hole, and
• a valve cap coupled to the cage, the valve cap defining a second passage.
• a valve spool disposed within the valve body, the valve spool being movable along a longitudinal axis of the valve body between a first position wherein fluid can flow between the first passage and the function hole, and a second position wherein a fluid can flow between the second passage and the function hole;
• and
• a piston disposed on an outer surface of the valve spool operable to move the valve spool between the first and the second position when pressure is applied to the piston.