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.
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Type 4WEH16 |
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Operating pressure, max. (MPa) |
H-4WEH16 |
4WEH16 |
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to 35 |
to 28 |
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Port T |
Pilot oil drain external (MPa) |
to 25 |
to 25 |
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Pilot oil drain internal (MPa) |
solenoid (DC) |
solenoid (AC) |
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to 16 |
to 10 |
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It's impossible for pressure centred |
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PortY |
Pilot oil drain external (MPa) |
=16 |
～10 |
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Pilot Pressure min. |
Pilot oil drain external (MPa) |
3-position valve,1.2 |
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Pilot oil supply internal (MPa) |
For spools C, F, G, H, P, T,V,Z,S |
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Operating pressure. max. (MPa) |
to 25 |
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Hydraulic fluid |
Mineral oils or phosphate ester |
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Pressure fluid temperature range （℃） |
-30～+80 |
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Viscosity range (mm2/s) |
10～+800 |
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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
Application:
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
Address
No. 27, Yangsha Road, Huilong Town, Nantong City, Jiangsu Province, China
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