Vickers | KADG4V533C50NZMFPD7H731
KADG4V533C50NZMFPD7H731
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The KADG4V533C50NZMFPD7H731 is manufactured by Vickers as part of the Proportional Valves series, where it modulates hydraulic flow and pressure in automated circuits. It interprets a ±10 V DC command signal so the spool displacement tracks the reference from the motion controller. An input impedance of 47 kΩ reduces current draw from the control card, preventing signal distortion. Internal power electronics operate at a 2 kHz PWM frequency to drive the solenoid smoothly and avoid hydraulic chatter. A 24 V DC supply energizes the electronics and coil, with power delivered through a 7-pin PD7 connector that supports quick field replacement. Service personnel can check coil condition via a 0.5 V per amp monitor output. The spool is arranged with P blocked and A and B routed to tank, providing load relief in the neutral position. Under commanded movement the valve passes up to 50 L/min (13.2 US gpm) to meet medium-flow actuator requirements.
This valve attaches to a manifold machined to the ISO 4401-05 / NFPA D05 / CETOP 5 pattern, and the subplate mounting style allows removal without disturbing hard plumbing. Hydraulic passages at the P, A, and B ports withstand pressures to 315 bar, while the tank port is limited to 210 bar to protect return lines. Reliable service is maintained from −20 °C to 70 °C so the unit covers most industrial ambient and fluid temperatures. System designers must keep fluid cleanliness at ISO 4406 class 17/15/12 to avoid wear on the precision-ground spool. The enclosure meets IP65 ingress protection when the mating connector is installed, which guards internal electronics from dust and low-pressure water jets.
Technical Specifications
Command Signal
+/-10 V DC
Electrical Connector
7-Pin (PD7)
Fluid Cleanliness
ISO 4406 17/15/12
Ingress Protection
IP65
Input Impedance
47 kOhm
Max Pressure (p/a/b Ports)
315 bar
Monitor Output
0.5 V/A
Mounting Interface
ISO 4401-05/NFPA D05/CETOP 5
Pwm Frequency
2 kHz
Rated Flow
50 L/min (13.2 US gpm)
Spool Type
P Blocked, A & B To Tank
Supply Voltage
24 V DC
Tank Port Rating
210 bar
Valve Mount Type
Subplate
Working Temp Max
70 C
Working Temp Min
-20 C
1620 Old Apex Road
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