4/2 way isolator valve- Type Z4WE6...L3X
Features
– Solenoid operated directional spool valve is the standard version
– Porting pattern to DIN 24 340 form A, ISO 4401 and CETOP–RP 121 H
– Free-flow through ports P and T in all switched positions
– Sandwich plate valve
– Wet pin AC or DC solenoids
– Hand override, (optional)
Function and configuration
Type Z4WE6 Isolator valves are solenoid operated directional spool
valves. They control the flow connection and isolating of flow.
Essentially the directional control valves consist of housing (1),
one or two solenoids (2), the control spool (3), and 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 valves). The control spool (3) is actuated via wet pin
solenoids (2).
To ensure satisfactory operation care should be taken that the
solenoid pressure chamber is filled with oil.
The force of the solenoids (2) acts via the push rod (5) on the
control spool (3), control spool (3) is pushed from its neutral
position to the required position. Then port A1, A2, B1 and B2 can
be either connected or disconnected. P and T always flow freely.
When solenoid (2) is de-energized, the control spool (3) is
returned to its neutral position by means of the return springs
(4).
An optional hand override allows movement of the control spool
without energizing the solenoid.
Specifications
Symbols ( ① =valve side, ② = sub-plate side)
Technical data
| Fixing position | Optional |
| Environment temperature range | ℃ | -30 to +50 (NBR seals) |
| -20 to +50 (FKM seals) |
| Weight | Single solenoid | kg | 1.5 |
| Double solenoids | kg | 2.0 |
| Max.operating pressure | Port A, B, P | bar | 315 |
| Port T | bar | 210 (DC), 160 (AC) |
| Max. flow | L/min | 40 |
| Fluid | Mineral oil suitable for NBR and FKM seal |
| Phosphate ester for FKM seal |
| Fluid temperature range | ℃ | -30 to +80 (NBR seal) |
| -20 to +80 (FKM seal) |
| Viscosity range | mm2/s | 2.8 to 500 |
| Degree of contamination | Maximum permissible degree of fluid contamination:Class 9. NAS 1638
or 20/18/15, ISO4406 |
Electrical data
| Type of voltage | DC | AC 50/60Hz |
| Usable voltage | V | 12, 24, 96, 110, 205, 220 | 110, 220, 230 |
| Voltage tolerance (nominal voltage) | % | +10~ -15 |
| Power consumption (DC) | W | 30 | – |
| Holding power (AC) | VA | – | 50 |
| Switch-on power (AC) | VA | – | 220 |
| Duty | Continuous |
| Switched time | ON | ms | 20 to 45 | 10 to 20 |
| Accord with ISO 6403 | OFF | ms | 10 to 25 | 15 to 40 |
| Switched frequency | times/h | to 15000 | to 7200 |
| Preventive grade according to DIN 40050 | IP65 |
Unit dimensions (Dimensions in mm)
Valve with DC solenoid
1 Nameplate
2 Plug for valves with one solenoid
3 Hand override button
4 Plug-in connector
5 Space required to remove Plug-in connector
6 O-ring 9.25×1.78
7 Porting pattern to ISO 4401 and CETOP–RP 121 H, without pin hole
8 Space required to remove solenoid
9 Securing nut, tightening torque MA =4Nm
Valve fixing screws:
4-M5 GB/T 70.1-10.9, 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)
Valve with AC solenoid
1 Nameplate
2 Plug for valves with one solenoid
3 Hand override button
4 Plug-in connector
5 Space required to remove Plug-in connector
6 O-ring 9.25×1.78
7 Porting pattern to ISO 4401 and CETOP–RP 121 H, without locating
pin hole
8 Space required to remove solenoid
9 Securing nut, tightening torque MA =4Nm
Valve fixing screws:
4-M5 GB/T 70.1-10.9, 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)
