Parker Hydraulic Group
V20EH Series Open-Center Directional Control Valve

Key Features

  • A global solenoid (pwm) that can be used for proportional or on/off control. The coils have a molded on Amp Jr. or Deutsch connector.
  • Work sections rated to 240 Bar (3500 PSI): 4-way, 3-position; and 3-way, 3-position.
  • A pilot generating/regulating section that is referred to as a utility section. The purpose of this section is to generate and regulate pilot pressure in an opencenter circuit. This section is to be placed adjacent to the outlet cover.
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Benefits

  • The pressure required to move the spools is generated and regulated internal to the V20 valve. This eliminates the need for any in-line devices and the associated plumbing which saves installation cost. 
  • Minimal impact on open-center pressure drops when the main spools are in neutral. This is because pressure generation is “triggered” to on, only when a spool is selected. The benefit is less heat generation and reduced fuel consumption.
  • Minimal impact on loop pressure drops: P-A/B and A/B-T which maximizes horsepower utilization.
  • There is an option to have the mechanical buildup for full on-time operation, useful in many applications where the PTO is engaged only when work is to be done.
  • A dedicated solenoid drain to the reservoir optimizes solenoid performance. This translates into consistent metering and machine controllability.
  • An extended bonnet for screw-adjustable work port relief valves in an option available for those applicatons requiring this type of adjustable pressure control (consult factory).
  • Handle with manual override.

The V20 has been a strong and reliable player in the 75-100 LPM (20-26 GPM) open-center, directional control valve market for many years. Now it has a new, electrohydraulic package designed for open-center systems and for those customers wanting to take machine control to the next level.