Артикул: RX7465
4/2 and 4/3 directional shut-off valves, internally pilot operated, externally pilot-operated Z4WEH 22
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Description
- Size 25
- Component series 5X
- Maximum operating pressure 315 bar
- Maximum flow 650 l/min
Features
- Directional spool valve, pilot-operated
- Type of actuation: electro-hydraulic
- Functioning as shut-off through valve or shut-off short-circuit through valve
- P and T free flow in every spool position
- Porting pattern according to ISO 4401-08-08-0-05
- Wet-pin DC or AC solenoids, optional
- Optional auxiliary operating device
- electrical connection as individual connection, see data sheet 23178 (central connection on request)
- Switching time adjustment, optional
- Stroke setting at main spool, optional
- Inductive position switch and proximity sensors (contactless)
Product description
| ➀ | component side |
| ➁ | plate side |
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | ||
| Z4 | WEH | 22 | – | 5X | / | K4 | * |
| 01 | Z4 | |
| Type of actuation | ||
| 02 | Electro-hydraulic | WEH |
| 03 | Size 25 | 22 |
| Symbols | ||
| 04 | see symbols | |
| 05 | Component series 50 ... 59 (50 ... 59: unchanged technical data and pin assignment) | 5X |
| Pilot control valve | ||
| 06 | High-power valve (data sheet 23178) | 6E |
| 07 | Direct voltage 24 V | G24 |
| Alternating voltage 230 V, 50/60 Hz | W230 | |
| DC voltage 205 V 50/60 Hz | G2051) | |
| For other voltages, frequencies and electric data, see data sheet RE 23178 | ||
| 08 | Without manual override | no code |
| With manual override | N | |
| With concealed manual override (standard) | N9 | |
| 09 | External pilot oil supply, external pilot oil return | no code |
| Internal pilot oil supply, internal pilot oil return (standard) | ET2) | |
| External pilot oil supply, internal pilot oil return | T | |
| 10 | Without switching time adjustment | no code |
| Switching time adjustment as supply control | S | |
| Switching time adjustment as discharge control | S2 | |
| Electrical connection | ||
| 11 | Without mating connector, individual connection with connector according to DIN EN 175301-803 | K4 3) |
| For further electrical connections, see RE 23178 | ||
| Spool position monitoring | ||
| 12 | Without position switch | no code |
| Monitored spool position "a" | QMAG24 | |
| Monitored spool position "b" | QMBG24 | |
| Monitored spool position "a" and "b" | QMABG24 | |
| Monitored rest position (not for valve with 2 spool positions) | QM0G24 | |
| 13 | No additional details | Without slash |
| Additional details | / | |
| Stroke setting | ||
| 14 | Without stroke setting | no code |
| Stroke setting on side A and B | 10 | |
| Stroke setting on side A | 11 | |
| Stroke setting on side B | 12 | |
| For more information, see stroke setting, mounting options | ||
| Throttle insert | ||
| 15 | Without throttle insert | no code |
| Throttle Ø 0.8 mm | B08 | |
| Throttle Ø 1.0 mm | B10 | |
| 16 | Without pressure reducing valve | no code |
| With pressure reducing valve (use for pilot pressure >210 bar) | D34) | |
| Seal material | ||
| 17 | NBR seals | no code |
| FKM seals | V | |
| Other seals on request | ||
| Observe compatibility of seals with hydraulic fluid used. | ||
| 18 | Further details in the plain text | * |
| AC voltage mains (admissible voltage tolerance ± 10%) | Nominal voltage of the DC solenoid in case of operation with alternating voltage | Ordering code |
| 110 V - 50/60 Hz 120 V - 60 Hz | 96 V | G96 |
| 230 V - 50/60 Hz | 205 V | G205 |
Preferred types and standard units are contained in the EPS (standard price list).
Technical data
general
| Size | 25 | ||
| Weight | Valve with one solenoid | kg | 20.8 |
| Valve with two solenoids | kg | 21.1 | |
| Switching time adjustment | kg | 0.8 | |
| 3-way pressure reducing valve | kg | 0.4 | |
| Plate for version "T" | kg | 0.5 | |
| Installation position | any | ||
| Ambient temperature ranges (NBR seals) | °C | -30 … +50 | |
| Ambient temperature ranges (FKM seals) | °C | -20 … +50 | |
hydraulic
| Size | 25 | |||
| Maximum operating pressure | Port P | External pilot oil supply | bar | 315 |
| Internal pilot oil supply (without pressure reducing valve) | bar | 210 | ||
| Internal pilot oil supply (with pressure reducing valve) | bar | 315 | ||
| Anschluss A | bar | 315 | ||
| Port B | bar | 315 | ||
| Port X | bar | 315 | ||
| Port Y | bar | 315 | ||
| Port T | with DC solenoid | bar | 210 | |
| with AC solenoid | bar | 160 | ||
| Maximum flow | l/min | 650 | ||
| Minimum pilot pressure | bar | 12 | ||
| Maximum pilot pressure | bar | 210 | ||
| Pilot volume for switching process | cm³ | 7.7 | ||
| Hydraulic fluid 1) | see table | |||
| Hydraulic fluid temperature range (NBR seals) | °C | -30 … +80 | ||
| Hydraulic fluid temperature range (FKM seals) | °C | -20 … +80 | ||
| Viscosity range | mm²/s | 2.8 … 500 | ||
| Maximum admissible degree of contamination of the hydraulic fluid 2) | Class 20/18/15 according to ISO 4406 (c) | |||
| 1) | The ignition temperature of the process and operating medium used must be over the maximum solenoid surface temperature. |
| 2) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | |
| Mineral oil | HL, HLP | NBR, FKM | DIN 51524 | |
| Fast bio-degradable hydraulic fluids | VDMA 24568 | |||
| Environmentally compatible | Insoluble in water | HETG | NBR, FKM | |
| HEES | FKM | |||
| Soluble in water | HEPG | NBR, FKM | ||
| Other hydraulic fluids on request | ||||
Notices!
- Actuation of the manual override is only possible up to a tank pressure of approx. 50 bar. Avoid damage to the bore of the manual override! (Special tool for the operation, separate order, material no. R900024943). When the manual override is blocked, the actuation of the solenoid must be prevented!
- The simultaneous actuation of the solenoids must be prevented!
Switching times (= Contacting at the pilot control valve until start of opening of the control edge in the main valve and change in the pressure value by 5 %)
On
| Pilot pressure | 70 bar | 140 bar | 210 bar | |||||
| Voltage type | Direct voltage | AC voltage | Direct voltage | AC voltage | Direct voltage | AC voltage | ||
| 3-spool position valve (spring-centered) | Version "ET" (with throttle insert "B10") | ms | 115 | 80 | 85 | 60 | 75 | 50 |
| Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]") | ms | 80 | 80 | 75 | 65 | 65 | 50 | |
| Version "T" | ms | 50 | 30 | 50 | 20 | 50 | 20 | |
| 2-spool position valve (spring end position) | Version "ET" (with throttle insert "B10") | ms | 140 | 100 | 100 | 70 | 75 | 50 |
| Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]") | ms | 125 | 110 | 95 | 65 | 75 | 50 | |
| Version "T" | ms | 65 | 45 | 60 | 40 | 85 | 55 | |
Off
| Pilot pressure | 70 bar | 140 bar | 210 bar | |||||
| Voltage type | Direct voltage | AC voltage | Direct voltage | AC voltage | Direct voltage | AC voltage | ||
| 3-spool position valve (spring-centered) | Version "ET" (with throttle insert "B10") | ms | 50 | 60 | 50 | 60 | 50 | 60 |
| Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]") | ms | 50 | 85 | 50 | 85 | 50 | 85 | |
| Version "T" | ms | 50 | 55 | 50 | 55 | 50 | 55 | |
| 2-spool position valve (spring end position) | Version "ET" (with throttle insert "B10") | ms | 160 | 175 | 140 | 160 | 130 | 150 |
| Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]") | ms | 150 | 175 | 120 | 150 | 110 | 140 | |
| Version "T" | ms | 55 | 110 | 45 | 100 | 40 | 95 | |
Inductive position switch type QM: electrical connection
The electric connection is realized via a 4-pole mating connector (separate order) with connection thread M12 x 1.
electrical
| Connection voltage (DC voltage) | V | 24 | ||
| Voltage tolerance (connection voltage) | +30 %/-15 % | |||
| Admissible residual ripple | % | ≤ 10 | ||
| Max. load capacity | mA | 400 | ||
| Switching outputs  | PNP transistor outputs, load between switching outputs and GND | |||
| Pinout  | 1 | V | 24 | |
| 2, 4 | Switching output | mA | 400 | |
| 3 | Earthing (GND) | V | 0 | |
(For applications outside these values, please consult us!)
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qv characteristic curves – Version "E62"
Δp-qv characteristic curves – Version "E63"
Symbols/Circuit diagrams
E62
Version "ET"
E62
Version "T"
E63
Version "ET"
E63
Version "T"
| ➀ | component side |
| ➁ | plate side |
Inductive position switch type QM Switching logics
Version QMA
Position switch on side B, monitored spool position of the main stage "a"
Version QMA
Position switch on side B, monitored spool position of the main stage "a"
Version QMB
Position switch on side A, monitored spool position of the main stage "b"
Version QMB
Position switch on side A, monitored spool position of the main stage "b"
version QMAB
Position switch on side A and B, monitored spool position "a" and "b"
Version QM0
Position switch on side A and B, monitored spool position "0"
| 1) No signal change at the position switch on side B with spool position "a" | |
| 2) No signal change at the position switch on side A with spool position "b" |
Version QM0
Position switch on side B, monitored spool position of the main stage "0"
Version QM0
Position switch on side A, monitored spool position of the main stage "0"
Dimensions
Type Z4WEH 22 E62-5X/6E…N9ET..
Dimensions in mm
| 1 | Name plate complete valve |
| 2 | Name plate pilot control valve |
| 3 | Main valve➀ component side – Porting pattern according to ISO 4401-08-08-0-05➁ plate side – Porting pattern according to ISO 4401-08-08-0-05 |
| 4 | Port X (G1/4) for external pilot control |
| 5 | Pressure reducing valve "D3" (to be used for pilot pressures above 250 bar) |
| 6 | Switching time adjustment (throttle check valve, see data sheet RE 27506); dependent on supply or discharge control installation position (representation: supply control) |
| 7 | R-ring plate |
| 8 | Pilot control valve (see data sheet 23178) |
| 9 | Solenoid "a" and "b" (rotatable by 90°) |
| 10 | Dimension for valve without manual override |
| 11 | Dimension for valve with manual override "N"; |
| 12 | Dimension for valve with concealed manual override "N9"; dimensions () for valve with AC solenoid without manual override |
| 13 | Identical seal rings for ports A, B, P and T (main valve) |
| 14 | Identical seal rings for ports A, B, P, T |
| 16 | Space required to remove the mating connector |
| 17 | Locking pin |
| 18 | Valve mounting bores |
Notice!
Length and tightening torque of the valve mounting screws must be calculated according to the components mounted.
Stroke setting, mounting options
| Mounting options | L1 | L2 |
| mm | mm | |
| Stroke setting on side A and B | 94 | 248 |
| Stroke setting on side A | 94 | - |
| Stroke setting on side B | - | 248 |
The stroke of the main spool is limited by the stroke setting.
The piston stroke is shortened by untightening the lock nut (19) and clockwise rotation of the adjustment spindle (20). For this, the control chamber has to be depressurized.
Stroke 9.5 mm (1 rotation = 1.5 mm stroke)
| 19 | Lock nut SW24 |
| 20 | Adjustment spindle, internal hexagon SW6 |
Pilot oil supply
External pilot oil
supply: 8 closed
9 open
internal: 8 open
9 closed
pilot oil port "X" only available with Z4WEH 22 ....
Throttle insert
Use of the throttle insert (10) is necessary if the pilot oil supply in channel P of the pilot control valve is to be limited.
The throttle insert (10) is inserted in channel P of the pilot control valve.
Spool position monitoring
| Size | L1 | L2 |
| mm | mm | |
| 16 | 82 | 182 |
| 25 | 62 | 215 |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Accessories
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Mating connectors for valves with one or two solenoids (individual connection)
Mating connectors for valves with connector “K4”, with indicator light
3P Z5L
Mating connectors for valves with connector “K4”, with indicator light
3P Z5L
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Mating connectors for valves with one or two solenoids (individual connection)
Mating connectors for valves with connector “K4”, with indicator light and Zener diode suppression circuit
3P Z5L1
Mating connectors for valves with connector “K4”, with indicator light and Zener diode suppression circuit
3P Z5L1
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Mating connectors for valves with one or two solenoids (individual connection)
Mating connectors for valves with connector “K4”, with rectifier
3P RZ5
Mating connectors for valves with connector “K4”, with rectifier
3P RZ5
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Mating connectors for valves with one or two solenoids (individual connection)
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