Vickers | KHDG4V30215745321
KHDG4V30215745321
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The KHDG4V30215745321 valve belongs to the DG4 Directional Valves series from Vickers and functions as a proportional pilot unit for hydraulic automation that needs electrically modulated flow paths. It is solenoid controlled, so magnetic force drives the spool instead of hydraulic pilot pressure, and the solenoid is positioned at the B-port end to keep wiring on the same side as the downstream circuitry. A 24 V DC coil voltage matches standard machine control supplies, while a subplate mount allows quick swap-outs without breaking pipe connections. The ISO 4401-03/NFPA D03/CETOP 3 interface aligns the valve with common manifold patterns, and single-stage construction limits internal volume for fast proportional response.
A feedback sensor is included to relay spool position to external electronics, improving closed-loop accuracy. Connection to power and signal lines is through ISO 4400 plugs that arrive pre-fitted, providing sealed quick-disconnect terminals. A plain manual override lets technicians shift the spool during commissioning when the solenoid is not energized, and the absence of on-board electronics means any amplifier must reside in a separate card. Viton seals resist the specified antiwear oil and non-alkyl phosphate esters and maintain integrity up to the 70 °C maximum working temperature. The cleanliness requirement of 17/15/12 limits particulate ingress to protect the proportional metering edges and preserve long-term performance.
Technical Specifications
Actuation Type
Solenoid Controlled
Build Orientation
Solenoid At B Port End
Coil Voltage
24 V DC
Electrical Connection
ISO 4400 With Fitted Plugs
Feedback Sensor
Yes
Fluid Cleanliness
17/15/12
Fluid Compatibility
Antiwear Oil; Non-Alkyl Phosphate Esters
Interface
ISO 4401-03/NFPA D03/CETOP 3
Manual Override
Plain
On-board Electronics
No
Seal Type
Viton
Stage
Single Stage
Valve Mount Type
Subplate
Valve Type
Proportional Pilot
Working Temperature Max
70 C
1620 Old Apex Road
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