Z2S10-2-3X/
Manufacturer: Bosch Rexroth
Material #: R900421985
Model : Z2S10-2-3X/
***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 Z2S10-2-3X (R900421985) is a high-quality isolator valve designed for the leakage-free blocking of one or two actuator ports, ensuring reliable performance even during extended periods of inactivity. This sandwich plate valve allows for free flow in the direction A to A or B to B, while flow in the opposite direction is securely blocked. It features a control spool that moves to open the ball seat valve and displace the poppet, allowing hydraulic fluid to flow freely when required.
The Z2S10-2-3X is equipped with preopening functionality to facilitate a damped decompression of pressurized liquid, effectively minimizing potential switching shocks. This two-stage valve with an increased control open ratio ensures that even low pilot pressures can be safely unloaded. The importance of this feature is highlighted by the fact that valves without preopening may cause sudden unloading of pressure, leading to possible premature wear and noise.
Additionally, this model adheres to international standards with porting patterns according to ISO conventions, although it denotes port T as TA and TB differently from standard ISO designations. The Z2S10-2-3X valve is suitable for vertical stacking applications and offers various cracking pressures for versatility in use. It comes in a corrosion-protected design that enhances its longevity under harsh conditions. Check valve installation sets are also available for this model individually.
With its robust construction and thoughtful engineering, the Bosch Rexroth Z2S10-2-3X isolator valve represents a reliable component for hydraulic systems requiring precise control over fluid flow and pressure maintenance. Its maximum operating pressure reaches up to bar levels while supporting a maximum flow rate measured in liters per minute, making it suitable for a diverse range of applications where hydraulic control is critical.
$492.00 USD
More are expected on May 9, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as May 9, 2025 when ordered in
This product is eligible for factory repair.
The isolator valve type Z2S is a releasable check valve in sandwich plate design.
It is used for the leakage-free blocking of one or two actuator ports, also in case of longer standstill times.
In direction A① to A② or B① to B②, there is a free flow; in the opposite direction, the flow is blocked.
If, for example, there is a flow through the valve in direction A① to A②, the control spool (1) is moved in the direction of the B side, opens the ball seat valve (2) and then pushes the poppet (3) off its seat. Hydraulic fluid can now flow from B➁ to B➀.
In order to allow the ball seat valve (2) to be safely closed, the control spool (1) must be hydraulically unloaded (see circuit example).
Pre-opening
Due to the pre-opening, there is a damped decompression of the pressurized liquid. Thus, possible switching shocks are avoided. The two-stage set-up with an increased control open ratio means even low pilot pressure can be unloaded securely.Type Z2S 10 ‒… (with pre-opening)
Type Z2S 10 A…
Type Z2S 10 A…SO40
Type Z2S 10 A…SO60
Type Z2S 10 ‒…SO41 (without pre-opening)
Type Z2S 10 ‒…SO14
Circuit example, schematic
|
1 |
Control spool, area A2 |
|
2 |
Ball, area A3 |
|
4 |
Poppet, area A1 |
|
5 |
Stop |
|
6 |
Control spool, area A4 |
|
① |
component side |
|
② |
plate side |
Notice:
In valves without pre-opening, sudden unloading of pent-up pressure volume may occur. Resulting switching shocks may lead to premature wear on installed components, as well as noise formation.
Notice:
Deviating from ISO 4401, port T is in this data sheet called TA, port T1 is called TB.
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves
|
① |
component side |
|
② |
plate side |
Version "A"
Version “-”, “-...SO41” and “-...SO14”
Version "B"
Version "A…SO40"
Version "A…SO60"
Version “-...SO150”
Version "A3...QMA"
Version "B3...QMB"
Notice:
Deviating from ISO 4401, port T is in this data sheet called TA, port T1 is called TB.
Inductive position switch type QM
The electrical connection is realized via a 4-pole mating connector (separate order, see "Accessories") with connection thread M12 x 1.
|
Connection voltage: |
24 V +30 %/-15 %, direct voltage |
|
|
Admissible residual ripple: |
≤ 10 % |
|
|
Load capacity: |
maximum 400 mA |
|
Switching outputs:
|
PNP transistor outputs, load between switching outputs and GND |
|
Pinout:
|
1 |
+24 V |
|
2 |
Switching output: 400 mA |
|
|
3 |
0 V, GND |
|
|
4 |
Switching output: 400 mA |
|
Switching logics
Dimensions in mm
|
|
Required surface quality of the valve contact surface |
|
Type |
L1 |
L2 |
|
mm |
mm |
|
| Z2S 10 ...ohne Bez. | 13.5 | 13.5 |
| Z2S 10 ...SO14 | 13.5 | 38.5 |
| Z2S 10 A...SO40 | 6.5 | 13.5 |
| Z2S 10 B...SO40 | 13.5 | 6.5 |
| Z2S 10 ...SO41 | 13.5 | 13.5 |
| Z2S 10 ...SO60 | 13.5 | 13.5 |
| Z2S 10 ...SO150 | 13.5 | 13.5 |
|
① |
component side |
|
② |
plate side |
|
1 |
Name plate |
|
2 |
Through hole for valve mounting |
|
3 |
Identical seal rings for ports A, B, P, TA and TB |
|
4 |
Plug screw SW30, tightening torque MA = 40+5 Nm |
|
5.1 |
Version with position switch “QMA” (for circuitry refer to "Electrical connection") |
|
5.2 |
Version with position switch “QMB” (for circuitry refer to "Electrical connection") |
|
6 |
Porting pattern according to ISO 4401-05-04-0-05, ISO 4401-05-05-0-05; deviating from ISO 4401, port T is referred to with TA and port T1 is referred to with TB in this data sheet. |
Valve mounting screws (separate order)
|
Size |
Quantity |
Hexagon socket head cap screws |
Material number |
|
10 |
4 |
ISO 4762 - M6 10.9 |
- |
Notice:
Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve.
Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1
4P Z24
Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1
4P Z24
For sensors and valves with connector “K24”, “K35” and “K72” Mating connectors M12, 4-pole, line cross-section 0.75 mm2Data sheet
Spare parts & repair
Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1, with assembled connection line
4P Z24 +
Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1, with assembled connection line
4P Z24 +
For sensors and valves with connector “K24”, “K35” and “K72” Mating connectors M12, 4-pole, line cross-section 0.75 mm2Data sheet
Spare parts & repair
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