Direct Acting, Spool Type, Slip-in cartridge - PDRC04T30D

The HYDAC proportional pressure control valve is a direct-acting 3-way spool-type valve.

When de-energised, port 2 is closed and port 1 (consumer) is connected to port 3 (tank). When the control flow increases, the solenoid coil applies a force that is proportional to
the control flow to the control spool, thus defining the pressure set at port 1. If, as the result of external factors, a pressure acts on port 1 that is greater than the set pressure, the valve will open from port 1 to tank port 3.

Product Advantages:

• Main applications: Pilot valve for directional spool valves and other main-stage valves, accumulator charging circuits, slewing angle adjustment on pumps, clutches.
• Very compact design
• Excellent small signal characteristics combined with low leakage
• Very good dynamics thanks to low coil inductance
• Stable operating behaviour thanks to self-venting after several actuations
• Robust spring design not affected by tank pressure spikes
• Extensive environmental trial test has been performed
• External surfaces with advanced corrosion protection due to ZnNi coating
  (672 h salt spray test)