The SDV20 Directional Control Valve is available for parallel, tandem, combined parallel/tandem and Series hydraulic circuit applications, at up to 3500 PSI [242 bar] continuous operating pressure and max flow 25gpm. The SDV20 dirextional control valves new spool design has resulted in lighter spool actuating effort. Making it’s finger-tip touch and extra-fine metering characteristics ideal for backhoe, front end loader, and personal lift applications. This sensitivity also gives the design engineer a wider latitude of mechanical linkage possibilities. The sdv20 directional control valves service or conversion is simple since individual sections can be added, removed or replaced in the field. Individual service or field conversion sections, rather than complete valve assemblies, can be stocked thus reducing inventories.

SDV20 Directional Control Valve Max Flow 25GPM

Options

• Either open center or closed center hydraulic circuit.
• Override adjustment option available
• Load checks for all work ports.
• Work port anti-cavitation checks.
• Work port relief valves.
• Work port restrictors.

Specifications

• Max Flow……………….25 GPM [94.6 litres/min]
• Pressure Rating……………….3500 PSI [242 bar]

Work Sections

Application Spool Selection

• Cylinder type spool – a and b work ports are blocked in the neutral position.
• Motor type spool – a and b work ports are open to the tank passage in the neutral position.
• Single acting cylinder spool – a port is blocked in neutral and there is no b port.

Spool Position Control

• 3 position spring return to neutral position.
• Detent in 3 positions
• Rotary friction detent variable from A position through B position.

• Spool Actuators

  • Manual lever metering.
  • Rotary lever metering.
  • Hydraulic pressure actuation.
    • -On or -off
    • Proportional pressure metering.
    • Solenoid controlled/pressure actuated.
  • Air pressure actuation
    • -On or -off
    • Proportional pressure metering.
    • Solenoid controlled/pressure actuated.

• Outlet section

  • Standard – oil flow directed to the tank when spools are in the neutral and the A or B position.
  • Power beyond – oil flow is directed to power beyond port when all spools are in the neutral position and return oil flow is directed to the tank port when the spools are in the A or B position.