Vickers | KBFDG4V-5-33C30N-Z-M1-PH7-H7-11
KBFDG4V-5-33C30N-Z-M1-PH7-H7-11
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The KBFDG4V-5-33C30N-Z-M1-PH7-H7-11 valve belongs to the Directional Control Valves series manufactured by Vickers and is applied in hydraulic automation to meter flow and change actuator direction under electronic command. A 24 VDC supply powers its onboard driver, while a ±10 VDC command input ties the unit to motion controllers. The threshold command voltage of 0.25 V establishes the minimum signal required to move the spool, and enable and disable thresholds of 8.5 V and 6.5 V set the logic window that allows or blocks operation. Pin B can tolerate 18 V common-mode potential so reference errors do not upset control electronics. The driver switches the coils at 10 kHz PWM to achieve smooth hydraulic response, and continuous duty (100 % ED) lets the valve remain energized without thermal limits. Closed-loop spool position is measured by an LVDT, giving feedback for precise centering and proportional flow regulation.
Maximum line pressure reaches 350 bar at P, A, and B ports, while the T port vents safely at 210 bar, ensuring compatibility with high-pressure circuits. Coil current is limited to 3 A to protect power stages, and the e-d differential is held below 100 mV so the LVDT signal stays linear. A ±10 VDC monitor output mirrors actual spool position for system diagnostics and tuning. The valve mounts on a subplate, which simplifies service exchange without disturbing pipework. An IP67 housing prevents water and dust ingress during wash-down or outdoor use, maintaining reliability in harsh environments.
Technical Specifications
Command Input
±10 VDC
Common Mode Voltage (pin B)
18 V
Disable Threshold Voltage
6.5 V
Duty Cycle
100% (ED)
Enable Threshold Voltage
8.5 V
Feedback Type
Spool Position (LVDT)
Ingress Protection
IP67
Max Current
3 A
Max Differential Voltage (e–d)
100 mV
Max Pressure P, A, B Ports
350 bar
Max Pressure T Port
210 bar
Monitor Signal Output
±10 VDC
Mounting
Subplate Mounted
Pwm Frequency
10 kHz
Supply Voltage
24 VDC
Threshold Command Voltage
0.25 V
1620 Old Apex Road
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