Hydraulic Valves
"PRODUCTS ARE SOURCED FROM GENUINE MANUFACTURERS /DEALERS ONLY"
The direction of the hydraulic fluid is determined
by the position of a spool inside a cast iron or
steel housing within the hydraulic valve. The spool
slides to different positions in the housing and
intersecting grooves and channels route the fluid
based on the spool’s position.
The spool has
a central (neutral) position maintained with
springs; in this position the supply fluid is
blocked, or returned to tank. Sliding the spool to
one side routes the hydraulic fluid to an actuator
and provides a return path from the actuator to
tank. When the spool is moved to the opposite
direction the supply and return paths are switched.
When the spool is allowed to return to neutral
(centre) position the actuator fluid paths are
blocked, locking it in position..
