DIRECTIONAL SPOOL VALVE Z4WEH16E68-5X/6EG24N9TK4
Manufacturer: Bosch Rexroth
Material #: R901030880
Model : Z4WEH16E68-5X/6EG24N9TK4
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth Z4WEH16E68-5X/6EG24N9TK4 (R901030880) is a highly versatile and efficient directional spool valve, designed for electrohydraulic actuation. This model is a pilot-operated valve that can function as either a shutoff through valve or a shutoff short-circuit through valve, providing flexibility in hydraulic flow control. It allows for free flow from P to T in every spool position, which enhances its applicability across various operational scenarios.
The porting pattern of the Z4WEH16E68-5X/6EG24N9TK4 conforms to ISO standards, ensuring compatibility and ease of integration into existing hydraulic systems. The valve is equipped with wet-pin DC or AC solenoids that can be selected based on the specific requirements of the application. Additionally, an optional auxiliary operating device is available, and electrical connections can be made either as individual connections or via a central connection upon request.
This model also features optional adjustments for switching time and stroke setting at the main spool, allowing for precise control over the hydraulic flow and system response times. For enhanced operational accuracy and monitoring, the Z4WEH16E68-5X/6EG24N9TK4 can be fitted with inductive position switches and proximity sensors that offer contactless detection.
With its size component series X, the valve is capable of handling maximum operating pressures up to several hundred bar and maximum flow rates measured in liters per minute (exact specifications to be determined by official data sheets). The combination of these features makes it an ideal solution for sophisticated hydraulic systems requiring reliable performance and adaptability.
$3,451.00 USD
More are expected on April 28, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 28, 2025 when ordered in
This product is eligible for factory repair.
Size 16, symbol E68, with solenoid actuation, 24 VDC
Industrial hydraulic valve in the medium performance range. Reliable switching of the oil flow direction according to hydraulic symbol
Unpacked Weight: 15.240 kg
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 4401-07-07-0-05 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)
Type Z4WEH 16 E62-5X/6E…ET..
general
|
Size |
16 | ||
|
Weight |
Valve with one solenoid |
kg |
14.1 |
|
Valve with two solenoids |
kg |
14.4 | |
|
Valve witch hydraulic actuation |
kg |
13.3 | |
|
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 |
16 | |||
|
Maximum operating pressure |
Port P |
External pilot oil supply |
bar |
315 |
|
Internal pilot oil supply (without pressure reducing valve) |
bar |
250 | ||
|
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 |
300 | ||
|
Minimum pilot pressure |
bar |
12 | ||
|
Maximum pilot pressure |
bar |
250 | ||
|
Pilot volume for switching process |
cm³ |
4.9 | ||
|
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 %)
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 | |
Off
|
Pilot pressure |
70 bar | 140 bar | 210 bar | 250 bar | ||||||
|
Voltage type |
Direct voltage | AC voltage | 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 |
30 | 40 | 30 | 40 | 30 | 40 | 30 | 40 |
|
Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]") |
ms |
35 | 40 | 35 | 40 | 35 | 40 | 35 | 40 | |
|
Version "T" |
ms |
35 | 45 | 35 | 45 | 35 | 45 | 35 | 45 | |
|
2-spool position valve (spring end position) |
Version "ET" (with throttle insert "B10") |
ms |
30 | 45 | 30 | 45 | 30 | 45 | 30 | 45 |
|
Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]") |
ms |
35 | 55 | 35 | 55 | 35 | 55 | 35 | 55 | |
|
Version "T" |
ms |
35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | |
On
|
Pilot pressure |
70 bar | 140 bar | 210 bar | 250 bar | ||||||
|
Voltage type |
Direct voltage | AC voltage | 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 |
85 | 60 | 70 | 55 | 60 | 45 | 55 | 45 |
|
Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]") |
ms |
115 | 110 | 65 | 55 | 55 | 60 | 60 | 55 | |
|
Version "T" |
ms |
50 | 35 | 40 | 30 | 40 | 20 | 40 | 20 | |
|
2-spool position valve (spring end position) |
Version "ET" (with throttle insert "B10") |
ms |
105 | 80 | 85 | 65 | 80 | 50 | 80 | 50 |
|
Version "ET" (with pressure reducing valve "D3; 45 bar [650 psi]") |
ms |
125 | 100 | 90 | 90 | 75 | 75 | 80 | 55 | |
|
Version "T" |
ms |
80 | 30 | 80 | 30 | 75 | 25 | 75 | 25 | |
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qv characteristic curves – Version "E51"
Δp-qv characteristic curves – Version "E62"
Δp-qv characteristic curves – Version "E63"
Δp-qv characteristic curves – Version "E68"
E62
Version "ET"
E62
Version "T"
E63
Version "ET"
E63
Version "T"
E68
Version "ET"
E68
Version "T"
E51
Version "ET"
E51
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 in mm
|
1 |
Name plate complete valve |
|
2 |
Name plate pilot control valve |
|
3 |
Main valve➀ component side – Porting pattern according to ISO 4401-07-07-0-05➁ plate side – Porting pattern according to ISO 4401-07-07-0-05 |
|
4 |
Port X (G1/4) for external pilot control |
|
5 |
Pressure reducing valve "D3"(to be used for pilot pressures above 250 bar; only for version "Z4WEH")Material no.:NBR seals: R900323180FKM seals: R900323664Attention!For use of a pressure reducing valve "D3", a throttle insert "B10" has to be installed in port P of the pilot control valve! |
|
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)- Type 4WE 6 J.. at symbol E62- Type 4WE 6 Y.. at symbol E63 |
|
9 |
Solenoid "a" and "b" (rotatable by 90°) |
|
10 |
Dimension for valve without manual override |
|
11 |
Solenoid "a" and "b" (rotatable by 90°) |
|
12 |
Dimension for valve with manual override "N";Dimensions () for valve with AC solenoid |
|
13 |
Identical seal rings for ports A, B, P and T (main valve) |
|
14 |
Identical seal rings for ports A, B, P, and T |
|
17 |
Locking pin |
|
18.1 |
Valve mounting boresValve mounting screws (separate order)4 hexagon socket head cap screws ISO 4762 - M10 - 10.9 |
|
18.2 |
Valve mounting boresValve mounting screws (separate order)2 hexagon socket head cap screws ISO 4762 - M6 - 10.9 |
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 | 108 | 208 |
| Stroke setting on side A | 108 | - |
| Stroke setting on side B | - | 208 |
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 10 mm [0.4 inch] (1 rotation = 1.5 mm [0.06 inch] Hub)
|
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 16 ....
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
Inductive position switch type QM
Type Z4W.H 16
Dimensions in mm
Mounting cavity R/T-8A; 2 main ports; thread M16 x 1.5 mm
Dimensions in mm
|
Size |
L1 |
L2 |
|
mm |
mm |
|
| 16 | 82 | 182 |
| 25 | 62 | 215 |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
|
Mounting options: |
||||
|
Monitored spool position |
Ordering code |
Position switch on side |
||
|
„a“ |
„b“ |
"a" and "b" |
||
|
„a“ |
QMAG24 |
X |
||
|
„b“ |
QMBG24 |
X |
||
|
"a" and "b" |
QMABG24 |
X |
||
|
„0“ |
QM0G24 |
X |
||
|
➀ |
component side |
|
➁ |
plate side |
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)Data sheet
Spare parts & repair
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)Data sheet
Spare parts & repair
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)Data sheet
Spare parts & repair
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)Data sheet
Spare parts & repair
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