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Directional Control Valve Rexroth Interchangeable

Directional Control Valve 4WEH 16 J

MANUFACTURER Genuine Huade Hydraulic
STANDARDS ISO 4401 / DIN 24340
AVAILABILITY Factory Direct Stock
Directional Control Valve 4WEH 16 J
Directional Control Valve 4WEH 16 J - Image 2
TECHNICAL REPLACEMENT NOTICE

This Huade® directional control valve serves as a 100% direct drop-in replacement for Bosch Rexroth DIRECTIONAL-CONTROL-VALVE-4WEH-16-J equivalents. Dimensions, mounting interfaces, and technical parameters are identical. Designed for cost reduction in industrial and mobile hydraulic systems.

• Product features: Electro-hydraulic operation, Rexroth-compatible design, subplate mounting
• Specifications: 4WEH16 series, max 35 MPa operating pressure, wet-pin DC/AC solenoids
• Applications: Engineering machinery, machine tools, shipbuilding, aerospace, rail transit

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100% Genuine Huade Direct factory authorized supply
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ISO 4401 Mounting ISO 4401 / Rexroth interchangeable
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Technical Data Sheet

  • Product Overview
  • Features & Applications
  • Technical Parameters

Product Overview

Established through a strategic partnership between the Chinese and German governments in 1979, Huade Hydraulic has had two long-term cooperation experiences with Rexroth. Huade® 4WEH 16 J electro hydraulic directional control valve is a cheap alternative to the Rexroth valve in the same series. The factory has passed ISO9001, ISO14001 and OH SAS18001. Huade Hydraulic puts great stress on the quality. To ensure the high quality of hydraulic valves, the factory operates more than 750 pieces advanced production equipment imported from all over the world. Huade® hydraulic products are widely used in engineering and construction machinery, machine tools, environmental protection, shipbuilding, aerospace, rail transit,military industry and other fields.

Operating pressure, max. (MPa) -Port P,A,B

It's impossible for pressure centred 3-position valve to pilot oil drain internal

Pilot oil drain external (MPa) Pilot oil supply internal (MPa)

3-position valve,1.2 2-position valve,with spring offset 1.2 2-position valve with hydraulic offset 1.2

For spools C, F, G, H, P, T,V,Z,S (by means of a pre-load valve or a sufficiently large flow) 0.45

Pressure fluid temperature range （℃）

Viscosity range                              (mm2/s)

Key Features

  • Valves used to control the start stop and direction of a fluid flow
  • Electro-hydraulic operation (WEH), hydraulic operation (WH)
  • For subplate mounting
  • Spring or pressure-centred,spring or hydraulic offset
  • Wet-pin DC or AC solenoids,optional
  • Manual override, optional
  • Electrical connection as individual or central connection
  • Shifting time adjustment, optional
  • Pre-load valve in the P-channel of the main valve, optional
  • Auxiliary equipment to data sheet
  • Stroke adjustment at main spool, optional
  • Stroke adjustment and/or end position indicator, optional
  • Mechanical or inductive limit switch (proximity type) at the main spool, optional
  • Porting pattern to Din 24 340 form A, ISO 4401 and CETOP - RP 121H

Industrial Applications

  • Directional Control Valves 4WEH 16 J are used to control the start stop and direction of a fluid flow.
  • Directional valves type 4WEH..
  • Valves of type WEH are directional spool valves with electro-hydraulic operation
  • The directional valves basically consist of the main valve with housing (1), main control spool (2), one or two return springs, and the pilot valve (4) with one or two solenoids.
  • The main control spool(2) in the main valve is held in the neutral or in the initial position either by the springs.
  • cutaway view of 4WEH

Technical Parameters

Mechanical ratings and operating limits for the Directional Control Valve 4WEH 16 J:

Parameter / Dimension Name Value / Rating Specification
Type 4WEH16 Type 4WEH16
Operating pressure, max. (MPa) -Port P,A,B - H-4WEH16 4WEH16
Operating pressure, max. (MPa) -Port P,A,B - to 35 to 28
Port T - Pilot oil drain external (MPa) - to 25 to 25
Port T - Pilot oil drain internal (MPa) - solenoid (DC) solenoid (AC)
Port T - Pilot oil drain internal (MPa) - to 16 to 10
Port T - Pilot oil drain internal (MPa) - It's impossible for pressure centred 3-position valve to pilot oil drain internal It's impossible for pressure centred 3-position valve to pilot oil drain internal
PortY - Pilot oil drain external (MPa) - =16 ～10
Pilot Pressure min. - Pilot oil drain external (MPa) Pilot oil supply internal (MPa) - 3-position valve,1.2 2-position valve,with spring offset 1.2 2-position valve with hydraulic offset 1.2 3-position valve,1.2 2-position valve,with spring offset 1.2 2-position valve with hydraulic offset 1.2
Pilot Pressure min. - Pilot oil supply internal (MPa) - For spools C, F, G, H, P, T,V,Z,S (by means of a pre-load valve or a sufficiently large flow) 0.45 For spools C, F, G, H, P, T,V,Z,S (by means of a pre-load valve or a sufficiently large flow) 0.45
Operating pressure. max. (MPa) - to 25 to 25
Hydraulic fluid - Mineral oils or phosphate ester Mineral oils or phosphate ester
Pressure fluid temperature range （℃） - -30～+80 -30～+80
Viscosity range                              (mm2/s) - 10～+800 10～+800

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