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WEH Electro Directional Hydraulic Rexroth Valves with Directional Control

Zhangjiagang KMLIKE Hydraulic Co., Ltd.

WEH Electro Directional Hydraulic Rexroth Valves with Directional Control

Place of Origin : china

Brand Name : KMLIKE

Certification : ISO9001

Model Number : DB, DBD, DBW

MOQ : 1pcs

Packaging Details : Carton

Delivery Time : 5-17 days

Payment Terms : T/T, L/C

Supply Ability : 100pcs

Price : Negotiable

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WEH Electro Directional Hydraulic Rexroth Valves with Directional Control

Directional spool valve type WEH electro-hydraulically operated

WEH32 electro-hydraulic directional control valve

Directional spool valves are used to conrol the start, stop and direction of fluid flow and thus the direction of movement or holding position ( cylinder or hydraulic motor ) is determind. The valves can be installed in hydraulic circuit in any position together with a subplate.
The connecting surfaces are sealed with O-rings that are included with the valve.

DESCRIPTION OF OPERATION

The directional valve is switched by changing position of the control spool 2 which moving along its axis separates or connects ports A, B, P or T in the housing 1.
Pressure supplied to one spring chamber 6 via the pilot valve 4 acts on the main spool surface and thus the main spool is shifted from its neutral position.
The main control spool is held in centre position by the spring 4 or hydraulically that is by fluid pressure affecting( via the pilot valve ) the both spool surfaces.

Centering sleeve 7 serves centering function.
The pilot valve is electrically operated by the solenoids 5, which may be equipped with the emergency button 8. The optional emergency button allows the operation of the pilot
valve without energisation subject to the pilot fluid pressure being at disposal.
The directional valve may be provided with the pilot choke adjustment 9.

TECHNICAL DATA

Hydraulic fluid Mineral oil, phosphate ester
Required filtration up to 16 mm ( recommended 10 mm )
Fluid temperature range 243 - 343 K
Nominal fluid viscosity 37 mm2 at temp. of 328 K
Viscosity range 2.8 to 380 mm2/s
Optimum working temperature ( fluid in a tank ) 313 - 328 K
Weight max 51 kg

Maximum operating pressure
- in ports A, B, P 35 MPa for H-4WEH 32, 28 MPa for 4WEH 32
- in port T 25 MPa
pilot fluid return Y = external
pilot fluid return Y = internal
( 3-position valve spring centered, 2-position valve) 16 MPa
internal pilot fluid return
( 3-position valve hydraulically centered ) no

Minimum pilot pressure
pilot fluid supply X = external
pilot fluid supply X = internal
three-position directional valve pst = 0.8 MPa
two-position directional valve spring centered pst = 1.0 MPa
two-position directional valve hydraulically centered pst = 0.5MPa
pilot fluid supply X = internal
for spool types G, H, F, S, T ( via pre-load valve or by suitable
high flow rate )

Maximum pilot pressure 25Mpa


Product Tags:

hydraulic directional valves

      

hydraulic control valves

      
Quality WEH Electro Directional Hydraulic Rexroth Valves with Directional Control for sale

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