M-Z4SEH16E2X/3CG24XYK4/N
Manufacturer: Bosch Rexroth
Material #: R901335455
Model : M-Z4SEH16E2X/3CG24XYK4/N
***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 M-Z4SEH16E2X/3CG24XYK4/N (R901335455) is a high-performance directional seat valve designed for precise control in hydraulic systems. This electrohydraulically actuated valve falls under the Type MZSEH category, which is known for its robust construction and reliable performance. The valve features a housing, a pilot operated check valve installation set, and a pilot control valve, along with blanking plugs for the pilot oil supply. It operates in a leak-free manner, allowing free flow regardless of direction when opened and providing blockage when closed.
The M-Z4SEH16E2X/3CG24XYK4/N operates based on pressure conditions within the system. It utilizes compression springs and forces generated by pressure in the control chamber to close, while pressures in channels A and B work towards opening the valve spool with spool sealing. The overall switching position of the check valve installation sets is determined by these operational forces. Pilot pressure application or unloading is controlled through the pilot control valve, which is supplied with oil from the highest pressure channels—A, B, P or X—protected by a check valve.
This model offers various versions for pilot oil supply and return configurations:
- Version XY: External pilot oil supply via X channel from an independent circuit; external return via Y channel into the tank.
- Version PY: Internal pilot oil supply from P channel of main valve; external return via Y channel into the tank (X port closed on subplate).
- Version PT: Internal pilot oil supply from P channel; internal return via T channel into tank (both X and Y ports closed on subplate).
- Version XT: External pilot oil supply via X channel; internal return via T channel into tank (Y port closed on subplate).
Designed as a sandwich plate valve with electrohydraulic actuation conforming to ISO NG standards, this Bosch Rexroth directional seat valve can handle maximum operating pressures up to bar and maximum flow rates up to l/min. It supports different combinations of locking and pass-through functions and can come with an optional manual override. Electrical connections are made through individual connections, ensuring ease of integration into various hydraulic systems.
$4,695.00 USD
More are expected on April 24, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 24, 2025 when ordered in
This product is eligible for factory repair.
Type M-Z4SEH 10 …
General
The SEH type directional valves are directional seat valves with electro-hydraulic actuation. Here, depending on the order version, it can be switched or switched off via one or two channels.
The directional valve basically consists of a housing (1), a pilot operated check valve installation set (2), pilot control valve (3) as well as blanking plugs for the pilot oil supply. The valve is free-flowing, independent from the direction, and is opened or blocked in a leakage-free manner depending on the switching position of the pilot control valve and the pressure ratio in the main valve.
Function
The function of the valve is pressure-dependent. The force of the compression spring (4) as well as the force generated by pressure in the control chamber (5) take effect in the closing direction, while the forces generated by pressure in the channels A and B take effect in the opening direction of the valve spool (6) with spool sealing. The direction of action of the resulting force from the opening and closing forces determines the switching position of the check valve installation sets (2). The pilot pressure application and/or unloading is implemented via the pilot control valve (3) depending on the selected pilot oil supply. The pilot oil supply is implemented via the respective highest pressure from the channels A, B, P or X and is secured via a check valve (7).
Notice!
For nozzles and plug fitting, please refer to the project planning information.
|
➀ |
component side |
|
➁ |
plate side |
Version “XY”
The pilot oil supply is implemented externally - via the X channel - from a separate circuit.
The pilot oil return is implemented externally via the Y channel into the tank.
Version “PY”
The pilot oil supply is implementedinternally from the P channel of the main valve.
The pilot oil return is implemented externally via the Y channel into the tank. In the subplate, port X is closed.
Version “PT”
The pilot oil supply is implemented internally from the P channel of the main valve.
The pilot oil return is implemented internally via the T channel into the tank. In the subplate, ports X and Y are closed.
Version “XT”
The pilot oil supply is implemented externally - via channel X - from a separate circuit.
The pilot oil supply is implemented internally - via channel T - into the tank. In the subplate, port Y is closed.
|
Connection |
Internal |
External |
Port in subplate closed |
||
|
Version “XY" |
Pilot oil supply |
X |
– |
✔ |
– |
|
Pilot oil return |
Y |
– |
✔ |
||
|
Version “PY” |
Pilot oil supply |
P |
✔ |
– |
X |
|
Pilot oil return |
Y |
– |
✔ |
||
|
Version “PT” |
Pilot oil supply |
P |
✔ |
– |
X and Y |
|
Pilot oil return |
T |
✔ |
– |
||
|
Version “XT” |
Pilot oil supply |
X |
– |
✔ |
Y |
|
Pilot oil return |
T |
✔ |
– |
||
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
11 |
12 |
13 |
14 |
15 |
||||
|
M |
– |
Z |
4 |
SEH |
– |
2X |
/ |
3 |
C |
K4 |
/ |
* |
|
01 |
Mineral oil |
M |
|
02 |
Sandwich plate |
Z |
|
03 |
4 main ports |
4 |
|
Type of actuation |
||
|
04 |
electro-hydraulic |
SEH |
|
05 |
Size 10 |
10 |
|
Size 16 |
16 |
|
|
06 |
Symbols |
|
|
E |
|
|
E1 |
|
|
A |
|
|
B |
|
|
07 |
Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions) |
2X |
|
Pilot control valve |
||
|
08 |
3/2 directional seat valve, type KSDE |
3 |
|
09 |
Wet-pin DC solenoid with detachable coil |
C |
|
10 |
Direct voltage 24 V |
G24 |
|
Nominal voltage 205 V at DC solenoid with operation with AC voltage mains (AC voltage mains 230 V – 50/60 Hz with an admissible voltage tolerance of +/- 10 %) |
G205 |
|
|
Nominal voltage 96 V at DC solenoid with operation with AC voltage mains (AC voltage mains 110 V - 50/60 Hz with an admissible voltage tolerance of +/- 10 %) |
G96 |
|
|
11 |
Without manual override |
no code |
|
With concealed manual override |
N9 |
|
|
With screwable manual override (actuation by means of knurled screw) |
N11 |
|
|
12 |
External pilot oil supply, external pilot oil return |
XY |
|
Internal pilot oil supply, external pilot oil return |
PY |
|
|
Pilot oil supply internal, pilot oil return internal |
PT |
|
|
External pilot oil supply, internal pilot oil return |
XT |
|
|
For further details, please refer to Pilot oil supply |
||
|
Electrical connection |
||
|
13 |
Without mating connector, individual connection with connector according to DIN EN 175301-803 |
K4 1; 2) |
|
Seal material |
||
|
14 |
NBR seals |
N |
|
FKM seals (other seals upon request) |
F |
|
|
Observe compatibility of seals with hydraulic fluid used. |
||
|
15 |
Further details in the plain text |
* |
| 1) For the connection to the AC voltage mains, a DC solenoid must be used, which is controlled via a rectifier (see AC voltage mains table). | |
| For individual connection, a mating connector with integrated rectifier can be used (separate order). | |
| 2) Mating connectors, separate order. |
|
➀ |
component side |
|
➁ |
plate side |
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves, size 10
Δp-qV characteristic curves, size 16
|
➀ |
component side |
|
➁ |
plate side |
Pilot oil supply
|
➀ |
component side |
➁ |
plate side |
Version “XY"
Version “PY”
Version “XT”
Version “PT”
Size 10
Size 16
|
Pilot control valve, normally open, symbol “E” |
Pilot control valve, normally closed, symbol “E1” |
|
|
Detailed |
|
|
|
Version “XY" |
|
|
|
Pilot control valve, normally open, symbol “A” |
Pilot control valve, normally closed, symbol “B” |
|
|
Detailed |
|
|
|
Version “XY" |
|
|
Size 10
Size 16
|
Pilot control valve, normally open, symbol “E” |
Pilot control valve, normally closed, symbol “E1” |
|
|
Detailed |
|
|
|
Version “XY" |
|
|
|
Pilot control valve, normally open, symbol “A” |
Pilot control valve, normally closed, symbol “B” |
|
|
Detailed |
|
|
|
Version “XY" |
|
|
Size 10
Dimensions in mm
|
➀ |
Component side – porting pattern according to ISO 4401-05-05-0-05 |
|
➁ |
Plate side – porting pattern according to ISO 4401-05-05-0-05 |
|
1 |
Mating connector without circuitry (separate order) |
|
2 |
Mating connector with circuitry (separate order) |
|
3 |
DC solenoid “a” (mating connector color: gray) |
|
4 |
3/2 directional seat valve, type KSDE |
|
5 |
Name plate |
|
6 |
Identical seal rings for ports A, B, P, T and T1 |
|
7 |
Identical seal rings for ports X and Y |
|
8 |
Space required to remove the mating connector |
|
9 |
Main valve |
|
10 |
Plug screw or check valve, tightening torque M A= 8 Nm |
Subplates according to data sheet 45054 (separate order)
Valve mounting screws (separate order)
4 hexagon socket head cap screws ISO 4762 - M6 - 10.9
Notice!
Length and tightening torque of the valve mounting screws must be calculated in connection with the components mounted underneath and above the sandwich plate valve.
Size 16
Dimensions in mm
|
➀ |
Component side – porting pattern according to ISO 4401-07-07-0-05 |
|
➁ |
Plate side – porting pattern according to ISO 4401-07-07-0-05 |
|
1 |
Mating connector without circuitry (separate order) |
|
2 |
Mating connector with circuitry (separate order) |
|
3 |
DC solenoid “a” (mating connector color: gray) |
|
4 |
3/2 directional seat valve, type KSDE |
|
5 |
Name plate |
|
6 |
Identical seal rings for ports A, B, P, and T |
|
7.1 |
Seal ring for port X |
|
7.2 |
Seal ring for port Y |
|
8 |
Space required to remove the mating connector |
|
9 |
Main valve |
|
10 |
Plug screw or check valve, tightening torque M A= 8 Nm |
|
11 |
Grooved pin |
Valve mounting screws (separate order)
4 hexagon socket head cap screws ISO 4762 - M10 - 10.9
|
Tightening torques MA |
Plugs or check valve (channel A, B, P and X) |
Nm |
8 | 45 |
|
3/2 directional seat valve, type KSDE |
Nm |
45 | ||
|
Mounting screw, coil |
Nm |
4 | ||
|
Plug screw, 2-way cartridge valve |
Nm |
25 | 100 | |
Plug for NG10
Plug for NG16
|
Item |
Version |
Plug screw |
|
|
NG10 |
NG16 |
||
|
1 |
„XY“ |
M4 x 5 |
M6 |
|
3 |
M6 |
M6 |
|
|
2 |
„PY“ |
M6 |
M8 x 1 |
|
3 |
M6 |
M6 |
|
|
1 |
„PT“ |
M4 x 5 |
M6 |
|
4 |
M6 |
M6 |
|
|
2 |
„XT“ |
M6 |
M8 x 1 |
|
4 |
M6 |
M6 |
|
Mating connectors for valves with connector “K4”, without circuitry, standard
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Spare parts & repair
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Spare parts & repair
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