Vickers | KDG4V32C28SZMUH720
KDG4V32C28SZMUH720
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The KDG4V32C28SZMUH720 proportional valve is manufactured by Vickers for the KDG Non-feedback Proportional Valves series. It regulates flow in hydraulic automation by moving a type 2 closed center spool that delivers 28 l/min when fully shifted. Dual spring-centered solenoids return the spool to neutral, and the 0–100 percent step response is 25 ms, supporting quick pressure transitions. Ports p, a, and b handle 350 bar while the tank port withstands 210 bar, allowing use in high-pressure circuits. Continuous duty at 100 percent ED keeps the valve energized without cycling. The hydraulic interface is ISO 4401-03, and the mounting pattern matches ISO 4401-AB-03-4-A for direct assembly on CETOP 3 manifolds.
The H-coil version operates from a 24 V DC supply and may draw up to 1.6 A at 50 °C. Coil resistance at 20 °C is 7.3 Ω, and inductance measured at 1000 Hz is 20 mH, values that define current rise time when controlled by a driver card. Electrical hookup is through a DIN 43650 connector, securing quick replacement in maintenance routines. The housing carries an IP65 rating under IEC 144, giving protection against dust and low-pressure water jets. There is no manual override, so all movement is commanded electrically. These electrical features complement the hydraulic ratings outlined above and make the valve suitable for tightly controlled industrial motion systems.
Technical Specifications
Coil Inductance @ 1000 Hz (h Coil)
20 mH
Coil Resistance @ 20°c (h Coil)
7.3 Ω
Coil Voltage Rating
24 V DC (H Coil)
Duty Rating
Continuous (ED = 100%)
Electrical Connection
DIN 43650 Connector
Interface
ISO 4401-03 (CETOP 3, NFPA D03)
Ip Rating
IP65 (IEC 144)
Manual Override
None
Max Current @ 50°c (h Coil)
1.6 A
Max Operating Pressure (p,a,b)
350 bar (5000 psi)
Max Tank Line Pressure (t)
210 bar (3000 psi)
Mounting Pattern
ISO 4401-AB-03-4-A
Solenoid Configuration
Dual (Spring Centered)
Spool Flow Rating
28 l/min (7.4 US gpm)
Spool Type
2 (Closed Center)
Step Response 0–100%
25 ms
1620 Old Apex Road
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