4WRZ16E100-7X/6EG24N9TK4/M

The 4WRZ16E100-7X/6EG24N9TK4/M valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and is used to meter hydraulic flow and direction in automated machinery. It operates on a 24 V DC supply voltage, allowing direct connection to common control cabinets. A coil resistance of 4.8 Ω at 20 °C sets the electromagnetic characteristics and determines the driving electronics needed for accurate current control. The maximum coil current is limited to 1.5 A so the actuator can reach full spool force without exceeding thermal limits, and the winding can tolerate temperatures up to 150 °C for reliability in hot manifolds. Electrical connection is made through a DIN EN 175301-803 plug, providing a standardized mating interface for quick service. A concealed manual override lets maintenance personnel shift the spool mechanically when power is unavailable. The enclosure carries an IP65 rating, protecting internal components from dust and low-pressure water jets in industrial settings. A weight of 13.4 kg for the size-16 subplate version influences handling requirements during installation.

The main stage withstands operating pressures up to 350 bar, enabling use in high-pressure circuits such as presses or injection molds. A nominal flow of 100 l/min at a 10 bar differential allows the valve to control sizable actuators without excessive pressure loss, while 20 mm ports on A, B, P, and T passages match this flow capability. The mounting interface follows ISO 4401-07-06-0-94, ensuring direct interchange on standard size-16 subplates. Pilot oil can be supplied and drained either externally or internally, giving designers flexibility in managing pilot pressure and return lines. When an external drain is used, the T-port may carry up to 250 bar; if the drain is internal, the T-port limit falls to 30 bar, and the Y-port is also restricted to 30 bar so pilot return lines remain within safe limits. These pressure boundaries protect the spool and seals and help maintain consistent proportional control across varying load conditions.