PROPORTIONAL DIRECTIONAL VALVE

4WRA6E15-2X/G24K4/V

Manufacturer: Bosch Rexroth

Material #: R900904438

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• The Bosch Rexroth 4WRA6E15-2X/G24K4/V (R900904438) is a high-performance industrial hydraulic valve designed for reliable control of oil flow direction, corresponding to the hydraulic symbol E. This direct-actuated spool valve features a maximum pressure capability and operates with an electrical connection described as a connector pole PE according to EN. It belongs to a product group with specific ID numbers and possesses a number of ports suitable for various applications. The valve's type of actuation is electrical with external electronics, and it is designed for subplate mounting with a connection diagram that adheres to NFPA T.. R D SizeCETOP D standards. Its nominal flow rate, alongside the maximum operating pressure and maximum flow capacity, ensures efficient performance in demanding environments. The supply voltage requirement for this model is VDC, and it offers multiple switching positions. Weighing in at . kg, the 4WRA6E15-2X/G24K4/V valve is equipped with FKM seals and is compatible with various hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR types. Its size conforms to industry norms making it versatile for integration into existing systems. This Bosch Rexroth valve operates by means of proportional solenoids that feature central threads and detachable coils. The solenoids are controlled by external electronics which are not included with the valve. Its design includes a housing with a connection surface and control spool stabilized by compression springs. The solenoids' energization directly operates the control spool proportionally to the electric input signal. For maintenance considerations, it's important to note that the tank line must not run empty; installation conditions may require a preload valve with approximately bar preload pressure. This direct operated proportional directional valve does not include electrical position feedback but relies on external electronics for operation control.

• Description

• PROPORTIONAL DIRECTIONAL VALVE 4WRA6E15-2X/G24K4/V
  
  Size 6, symbol E, electrical with external electronics, 24 V DC
  
  Industrial hydraulic valve in a high performance range, reliable control of oil flow direction according to hydraulic symbol.
  
  Unpacked Weight: 1.96 kg
  
  

  Direct operated proportional directional valve without electrical position feedback, with external electronics Control of the direction and magnitude of a flow Operation by means of proportional solenoids with central thread and detachable coil For subplate mounting: Porting pattern according to ISO 4401 Spring-centered control spool

  
  
  

  The 4/2 and 4/3 proportional directional valves are designed as direct operated devices in plate design. Operation by means of proportional solenoids with central thread and detachable coil. The solenoids are controlled by external control electronics.

  Set-up:

  The valve basically consists of:

  Housing (1) with connection surface Control spool (2) with compression springs (3 and 4) Solenoids (5 and 6) with central thread

  Function:

  With de-energized solenoids (5 and 6), central position of the control spool (2) by compression springs (3 and 4) Direct operation of the control spool (2) by energization a proportional solenoid, e.g. control of solenoid "b" (6) Displacement of the control spool (2) to the left, proportionally to the electric input signal Connection from P to A and B to T via orifice-type cross-sections with progressive flow characteristics Switching off the solenoid (6) The compression spring (3) brings the control spool (2) back into the central position 

  
  

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  Valve with two spool positions (type 4WRA...A...):

  The function of this valve version basically corresponds to the valve with three spool positions. This 2 spool position valve is, however, only equipped with solenoid “a”. Instead of the 2nd proportional solenoid, there is a plug screw (8.1) with NG 6 or a cover (8.2) with NG10.

  Notice:

  The tank line must not be allowed to run empty. With corresponding installation conditions, a preload valve (preload pressure approx. 2 bar) must be installed.

  
  

Features