Rexroth 4WE6HA6X/EG24N9K4 Solenoid Directional Valve

Overview

The Rexroth 4WE6HA6X/EG24N9K4 identifies an NG6, component-series 6X directional valve with spool symbol HA. This catalog configuration uses one solenoid with spring return. Provide the full nameplate and circuit requirements so the supplied unit can be confirmed.

Selecting an open rest position in NG6

HA uses positions a and 0 of the H symbol. In the spring-return position 0, all four ports communicate. Energizing its single solenoid selects P to B and A to T. Check pump return flow and actuator movement in the open rest position. Specify the NG6 mounting interface and the complete HA code when requesting this configuration.

Key configuration details

• Four main ports and 2 switching positions; spool symbol HA.
• 1 solenoid; spring return.
• G24: 24 V DC actuation.
• K4: individual 3-pole connector interface, 2 + PE; mating connector ordered separately.
• Subplate mounting to ISO 4401-03-02-0-05.
• NBR seals for the specified catalog configuration.

Configuration code

4WE6 denotes a four-port solenoid-operated directional spool valve, size 6. HA identifies the hydraulic symbol and 6X the component-series family. The spring-return or spring-centered arrangement applies. The A in HA selects positions a and 0 of the H symbol. E after the slash identifies the high-power wet-pin solenoid with detachable coil. G24 is 24 V DC, N9 is the concealed manual override, and K4 is the individual electrical connection. The standard seal version without an added /V suffix uses NBR seals.

Technical specifications

Catalog pressure limits are 350 bar at P, A and B, and 210 bar at T for the DC version. N9 manual override operation is limited to a tank pressure of 50 bar and has no assigned safety function. Select the operating point using the actual flow path, pressure and fluid conditions.

The standard NG6 DC series has a catalog flow ceiling of 80 L/min. This is not a rated flow at every pressure for 4WE6HA6X/EG24N9K4. Verify the exact spool performance curves, return pressure and pressure drop for the required flow. The maximum pressure and series flow ceiling are not a simultaneous operating guarantee.

Selection and installation

• Match the full type code, material number, spool function and all additional suffixes.
• Check the NG6 manifold pattern, port arrangement and installation dimensions.
• Confirm 24 V DC control, 1 solenoid, K4 mating connectors and the required de-energized behavior.
• Provide P/A/B and tank pressures, working flow, oil type, temperature and filtration conditions.
• Confirm mating connectors, subplate, mounting screws and other accessories separately.

Information for a quotation

• Catalog configuration: 4WE6HA6X/EG24N9K4; material number: R900549534
• Quantity, destination and required supply condition
• Clear valve nameplate, coil markings and hydraulic symbol
• Circuit diagram, required de-energized state and operating sequence
• Working flow, P/A/B pressure and tank-line backpressure
• 24 V DC control details, connector and accessory requirements
• Hydraulic fluid, operating temperature and requested delivery date

Frequently asked questions

Is HA a three-position valve?

No. HA uses positions a and 0 of the H symbol, with one solenoid and spring return. P, A, B and T interconnected in spring-return position 0. When energized, position a connects P to B and A to T. Select the complete designation required by the circuit.

Are electrical plugs and a subplate included?

K4 specifies the valve electrical interface. Mating connectors are ordered separately; confirm plugs, subplate, mounting screws and other accessories in the quotation.

Can this valve always deliver 80 L/min?

The standard NG6 DC series has a catalog flow ceiling of 80 L/min. This is not a rated flow at every pressure for 4WE6HA6X/EG24N9K4. Verify the exact spool performance curves, return pressure and pressure drop for the required flow. The maximum pressure and series flow ceiling are not a simultaneous operating guarantee.

What is needed to confirm price and availability?

Send the full identification, quantity, destination, operating requirements and desired supply condition. Price, availability, delivery and warranty terms will be confirmed in the quotation.

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