CHECK VALVE SANDWICH PLATE Z2S6B2-6X/
Manufacturer: Bosch Rexroth
Material #: R900347502
Model : Z2S6B2-6X/
***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 Z2S6B2-6X (R900347502) is a high-performance, mechanically actuated industrial hydraulic sandwich plate valve designed for reliable blocking of oil flow in hydraulic systems. This direct-actuated seat valve allows for free flow in one direction (A to A or B to B), while blocking the opposite direction, ensuring leak-free operation even during extended periods of inactivity. The Z2S6B2-6X features a cracking pressure of bar and can handle a maximum pressure of bar.
With its spool symbol B B, the Z2S6B2-6X is equipped with preopening functionality that helps mitigate switching shocks by allowing a damped decompression of pressurized liquid. This two-stage setup ensures secure unloading even at low pilot pressures. The valve's design includes NBR seals and is compatible with various hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, and HFC.
The Bosch Rexroth Z2S6B2-6X has a maximum flow rate of l/min and can be easily integrated into hydraulic systems thanks to its sandwich plate connection conforming to NFPA T.. R D SizeCETOP D and ISO standards. It features multiple ports and has a weight of . kg.
This valve is particularly suitable for applications requiring precise control over fluid flow and where leak-free operation is critical. Optional features include various cracking pressures and the availability of check valve installation sets. Special versions can be requested to meet specific requirements. The robust construction and reliability make the Z2S6B2-6X an excellent choice for sophisticated hydraulic applications demanding high-quality components.
$399.00 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 6, B1 → B2, mechanically actuated
Industrial hydraulic valve in a high performance range. Reliable blocking of the oil flow according to the hydraulic symbol
Unpacked Weight: 0.937701 kg
Sandwich plate valve for use in vertical stackings Porting pattern according to DIN 24340 form A (without locating hole) Porting pattern according to ISO 4401-03-02-0-05 (with locating hole) For the leakage-free blocking of one or two actuator ports, optional Various cracking pressures, optional (see ordering codes) With pre-opening, optional Check valve installation sets available individually Special versions on request
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.
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.
|
1 |
Control spool, area A2 |
|
2 |
Poppet, area A1 |
|
3 |
Stop |
Type Z2S 6 A…SO40
Type Z2S 6 A…SO60
|
1 |
Control spool, area A2 |
|
2 |
Poppet, area A1 |
|
3 |
Stop |
|
4 |
Control spool, area A4 |
|
5 |
Pre-opening, area A3 |
Type Z2S 6 -…SO55 (with pre-opening)
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves
Δp-qV characteristic curves
Circuit example, schematic
|
① |
component side |
|
② |
plate side |
Type Z2S 6 A…
Type Z2S 6 -… and Z2S 6 -…SO55
Type Z2S 6 B…
Type Z2S 6 A…SO40
Type Z2S 6 A…SO60
Type Z2S 6 -…SO150
|
➀ |
component side |
|
➁ |
plate side |
Dimensions in mm
Dimensions in mm
|
Type |
L1 |
|
mm |
|
| Z2S 6...ohne Bez. | 11 |
| Z2S 6...SO40 | 11 |
| Z2S 6...SO55 |
11 1) 21.5 1) |
| Z2S 6...SO60 | 11 |
| Z2S 6...SO150 | 21.5 |
| 1) | Maximum dimension on the side of the check valve cartridge |
|
➀ |
component side – porting pattern according to DIN 24340 form A (without locating hole), or ISO 4401-03-02-0-05 (with locating hole Ø4 x 4 mm deep) and NFPA T3.5.1 R2-2002 D03 |
|
➁ |
plate side – porting pattern according to DIN 24340 form A (without locating hole), or ISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St; version "/60" and "/62") and NFPA T3.5.1 R2-2002 D03 |
|
3 |
Name plate |
|
4 |
Through hole for valve mounting |
|
5 |
Identical seal rings for ports A, B, P, and T |
|
6 |
Locking pin ISO 8752-3x8-St (only version "/62") |
|
7 |
Plug screw SW22 |
Valve mounting screws (separate order)
4 hexagon socket head cap screws ISO 4762 - M5 - 10.9
4 hexagon socket head cap screws N10-24 UNC
Notice!
The length of the valve mounting screws of the sandwich plate valve must be selected according to the components mounted under and over the isolator valve.
Depending on the application, screw type and tightening torque must be adjusted to the circumstances.
Please ask Rexroth for screws with the required length.
Type Z2S 6 -… (with pre-opening)
Type Z2S 6 A…
|
➀ |
component side |
|
➁ |
plate side |
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