Vickers | KAFTG4V-5-2B50N-Z-M-F-PD7-H7-21
KAFTG4V 5 2B50N Z M F PD7 H7 21
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The KAFTG4V 5 2B50N Z M F PD7 H7 21 is manufactured by Vickers within the Proportional Valves series to regulate flow and pressure in hydraulic automation. This proportional throttle valve is supplied as a single stage unit that acts directly on the spool without a pilot section. It installs on a subplate conforming to the ISO 4401-05 (NFPA D05/CETOP 5) interface, simplifying manifold layout. Rated flow is 50 L/min (13.2 US gpm), enough for medium-capacity cylinders or motors. The spool works in a meter-in / meter-out mode so both directions of actuator travel receive controlled damping. System pressure can reach 315 bar (4500 psi) at the pressure port, and spool position feedback reports displacement to the drive card for closed-loop accuracy. These characteristics define the hydraulic side of the valve and ensure stable throttling behavior during dynamic cycles.
Electrical operation uses a 24 VDC coil that is wired through a 7-pin PD7 connector, providing standardized power and command interfaces. The tank port is limited to 210 bar (3000 psi), a figure that guides sizing of return lines and filters. Viton seals resist heat and common hydraulic additives, while compatibility is specified for antiwear hydraulic oils to maintain film strength around the spool lands. Incoming fluid must meet ISO 4406 cleanliness class 17/15/12 to avoid erosion and sticking. Reliable service is maintained from −20 °C (−4 °F) up to 70 °C (158 °F), which covers most industrial and mobile environments. Together, these electrical, fluid, and environmental limits set the practical boundaries for integrating the valve into automated circuits.
Technical Specifications
Coil Voltage
24 VDC
Electrical Connection
7‑Pin Connector (PD7)
Feedback Sensor
Spool Position Feedback
Fluid Cleanliness
ISO 4406 17/15/12
Fluid Compatibility
Antiwear Hydraulic Oils
Interface Standard
ISO 4401-05 (NFPA D05/CETOP 5)
Maximum Pressure
315 bar (4500 psi)
Metering Mode
Meter-In / Meter-Out
Mount Type
Subplate Mounted
Rated Flow
50 L/min (13.2 US gpm)
Seal Type
Viton
Stage
Single Stage
Tank Port Rating
210 bar (3000 psi)
Valve Type
Proportional Throttle
Working Temp Max
70 °C (158 °F)
Working Temp Min
-20 °C (-4 °F)
1620 Old Apex Road
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