Rexroth 4WEH16J7X/6HG24N9ETK4/B10 Valve - Key Parameters

Rexroth 4WEH16J7X/6HG24N9ETK4/B10 Valve - FAQ

Q1: What is the typical center function of a "J" series spool like the J7X?

A:​ The "J" series designation typically indicates a "tandem center" or "float center" function. In the neutral position, the pressure port (P) is blocked, and both actuator ports (A & B) are connected to the tank (T). This allows the connected cylinder or motor to move freely if an external force is applied.

Q2: Why is this valve suitable for high-flow applications?

A:​ With a 16 mm nominal size and a two-stage, pilot-operated design, it is engineered to control very high flow rates efficiently, often up to 300 l/min. The pilot stage allows a small 24V DC signal to control the large main spool, which would otherwise require an impractically large direct-acting solenoid.

Q3: How is the valve operated?

A:​ It is controlled by a double-solenoid pilot valve ("6HG24N9ETK4"). Energizing one of the 24V DC pilot solenoids shifts the main spool to the corresponding position. De-energizing both allows internal springs to return the main spool to the J7X (float) center position. The "/B10" suffix often relates to the spring centering characteristic.

Q4: What are the main operating limits?

A:​ The main stage is rated for a maximum operating pressure of typically 350 bar. The flow capacity is in the high range (confirm exact value from datasheet). It mounts on an ISO 4401-07 (CETOP 7) subplate.

Q5: Where can I find the complete technical data and hydraulic symbol?

A:​ For the full specification sheet, including the exact J7X center symbol, performance curves, required pilot pressure, and electrical details, consult the official technical documentation for order code R901108808.