Explosion Proof Solenoid Directional Control Valve With 350 Bar Pressure

4/3, 4/2 and 3/2 explosion-proof solenoid directional valve

Type G...WE6...L6X

Features

-Directly operated type explosion protection directional valve is used as the standard type

-DIN24 340 A type on the mounting surface ISO 4401 and CETOP-RP 121H

-Wet-type DC explosion protection solenoid

-90° rotatable explosion protection solenoid

-Pressure-tight chamber does not need to be opened when coil is to be replaced

Function and configuration

GWE type directional control valve is the directional valve of explosion protection solenoid used to control start, stop and flow direction of oil fluid.

The directional control valves consist of housing (1), one or two solenoids (2), the control spool(3), and one or two return springs (4).

In the de-energized condition the control spool (3) is held in the neutral or initial position by means of return springs (4) (except for pulse spools). The control spool (3) is actuated via wet pin solenoids (2).

To guarantee satisfactory operation care should be taken to ensure that the solenoid pressure chamber is filled with oil.

The control spool(3) is moved to the expected position by solenoid(2) and pushing rod(5), and this gives free flow from P to A and B to T or P to B and A to T.

When the explosion protection solenoid(2) is powered off, control valve element (3) is pushed to the initial position by reset spring (4).

Type G4WE6...L6X/OB2...

(limited to functions A, C and D).

This type contains 2 switching positions and 2 directional control valves without locating mechanism explosion protection solenoid.

Type G4WE6...L6X/OFB2... pulse valve

(limited to functions A, C and D).

It contains 2 switching positions, 2 explosion protection solenoids and 1 directional control valve with locating mechanism. 2 switching positions are fixed separately, so it is unnecessary to continuously electrify explosion protection solenoid.

Cartridge throttle

The cartridge throttle is necessary since the actual flow may be larger than the performance limits of the valve during switching process. This cartridge throttle is inserted in the P channel of the directional control valve.

Specifications

Note: G1 Explosion protection grade EX d Ⅰ Mb; G2 Explosion protection grade EX d Ⅱ C T4 Gb

Spool symbols

Technical data

Electrical data

Caution: with electrical connections the protective conductor (PE) must be connected according to the relevant regulations.

Unit dimensions (Dimensions in mm)

1 Explosion protection solenoid

2 Copper nameplate

3 R-ring 9.81×1.5×1.78 or O-ring 9.25×1.78

4 End cap used for 1 electro solenoid valve

5 Dimensions of 3-position valve

6 Dimensions of 2-position valve, solenoids at end A

7 Dimensions of 2-position valve, solenoids at end B

8 Valve fixing screws:

M5×50 GB/T70.1-10.9

Tightening torque, MA=8.9Nm must be ordered separately.

It must be ordered separately, if connection plate is needed .Type:

G341/01(G1/4); G341/02(M14×1.5)

G342/01(G3/8); G342/02(M18×1.5)

G502/01(G1/2); G502/02(M22×1.5)

Leeman Paper Co., Ltd.
Stora Enso

Mustad.
Yinzhou Paper Co., Ltd.

Guangxi University
Nanjing Forestry University