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Directional Valve Product Guide

Brands We Repair:

  • Bosch
  • Vickers
  • and many more

What They Do:

Directional valves start, stop and control the direction
of fluid flow.

They work to cause the reverse motion of a cylinder or
hydraulic motor (4 way valve). To pressurize and
exhaust an actuator port (3 way valve or 4 way with
plugged actuator port). As an ON-OFF function - used
as safety interlock and to isolate and connect various
system parts (2 Way). To prevent reverse flow
(one way valve).

Primary Types and How They Work:

By moving an internal flow control source in a particular
way, a directional valve allows fluid to flow through a
passage. The control source could be a poppet (either
piston or ball) a rotary or sliding spool.

The control source can be moved manually, mechanically,
pneumatically, hydraulically, electrically or certain
combinations of each.

The flow direction can be one-way (as in a check valve,
using a ball to stop reverse flow), two way, three way,
or four way.

They are sized according to the size of the port or
flange connections, rated gallons per minute or with
reference to a standard mounting pattern.

Repair Procedures:

  • Replace all dry coils with new .
  • Replace spool as necessary.
  • Replace solenoid assemblies.
  • Sandblast, tumble and clean all solenoid cores.
  • Install new ends to coil wires.

See These Links for More Info:

SERVO VALVE BROCHURE



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Paragon Technologies
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