BOSCH REXROTH
R900950210
$416.30 USD
- BOSCH REXROTH
- Material:R900950210
- Model:Z2S6-4-6X/
Quantity in stock: 0
The Bosch Rexroth Z2S6-4-6X (R900950210) is a mechanically actuated industrial hydraulic sandwich plate valve designed for reliable blocking of oil flow in hydraulic systems. This direct-actuated spool valve, with a spool symbol A A, B B, is part of Bosch Rexroth's high-performance range and offers precise control for hydraulic applications. Capable of handling a maximum pressure as indicated in its product group ID, the Z2S6-4-6X valve has multiple ports for versatile connectivity and is actuated mechanically. The Z2S6-4-6X valve facilitates free flow in one direction (A to A or B to B) while providing leak-free blocking in the opposite direction. This functionality is particularly useful for applications requiring one or two actuator ports to be securely isolated, even during extended periods of non-operation. The design includes a preopening feature that allows for damped decompression of pressurized fluid, minimizing potential switching shocks and reducing wear on components. Constructed with NBR seals and compatible with various hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, and HFC, the Z2S6-4-6X ensures compatibility with a wide range of hydraulic systems. Its robust design conforms to both NFPA T.. R D SizeCETOP D and ISO connection diagram standards for easy integration into existing setups. The Z2S6-4-6X valve's specifications include its size and component series X designation, along with its maximum operating pressure (bar) and maximum flow rate (l/min). It can be ordered with different cracking pressures according to customer requirements. Optional features such as preopening are available upon request. For those needing to incorporate this check valve into vertical stackings or specific configurations, individual installation sets are offered separately. Special versions can also be produced based on unique application needs.
Size 6, A1 → A2, 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: 0.98 kg
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)
| Direct actuated |
| Leakage-free blocking in channel A and B |
| Cracking pressure 10 bar |
| Component series 6X |
| Size 6 |
| Maximum operating pressure 350 bar |
| Maximum flow 80 l/min |
| Data Sheet | Download Data Sheet |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Spool symbol | A1 → A2, B1 → B2 |
| Max. pressure | 350 |
| Productgroup ID | 9,10,11,12,13,14 |
| Number of ports | 4 |
| Type of actuation | with mechanical actuation |
| Size | 6 |
| Max. flow | 80 |
| Type of connection | Sandwich plate |
| Connection diagram NFPA | NFPA T3.5.1 R2-2002 D03 |
| Size_CETOP | D03 |
| Connection diagram | ISO 4401-03-02-0-05 |
| Number of switching positions | 2 |
| Weight | 0.98 |
| Seals | NBR |
| Hydraulic fluid | HL,HLP,HLPD,HVLP,HVLPD,HFC |
1) Corrosion-resistant surface on request: e.g."J50" thick film passivated (DIN 50979 Fe//Zn8//Cn//T0)
2) Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order)
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
||
|
Z2S |
6 |
– |
6X |
/ |
* |
|
01 |
Check valve, Sandwich plate design |
Z2S |
|
02 |
Size 6 |
6 |
|
Leakage-free blocking |
||
|
03 |
In channel A and B |
– |
|
In channel A |
A |
|
|
In channel B |
B |
|
|
Cracking pressure |
||
|
04 |
1,5 bar |
1 |
|
3 bar |
2 |
|
|
6 bar |
3 |
|
|
05 |
Component series 60 … 69 (60 … 69: unchanged installation and connection dimensions) |
6X |
|
06 |
Surface without corrosion resistance 1) |
no code |
|
Seal material |
||
|
07 |
NBR seals |
no code |
|
FKM seals |
V |
|
|
The selection is dependent on the operating parameters (hydraulic fluid, temperature, etc.)! |
||
|
Locating hole |
||
|
08 |
no code |
|
|
With locating hole |
/60 |
|
|
With locating hole and locking pin ISO 8752-3x8-St 2) |
/62 |
|
|
Special version |
||
|
09 |
Without special version |
no code |
|
Control open by external port G1/4 (only version "A" and "B") |
SO40 |
|
|
With pre-opening |
SO55 |
|
|
Control spool unloaded to port T |
SO60 |
|
|
With pre-opening and control open from channel P |
SO150 |
|
|
Symbols (examples) see "Symbols/Circuit diagrams" |
||
|
10 |
Further details in the plain text |
* |
general
|
Size |
6 | ||
|
Weight |
kg |
0.8 | |
|
Installation position |
any | ||
|
Ambient temperature range |
NBR seals |
°C |
-30 … +80 |
|
FKM seals |
°C |
-20 … +80 | |
hydraulic
|
Size |
6 | ||
|
Maximum operating pressure |
bar |
315 | |
|
Cracking pressure 1) |
bar |
1.5 / 3 / 6 | |
|
Maximum flow |
l/min |
60 | |
|
Direction of flow |
see symbols | ||
|
Hydraulic fluid |
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) | ||
|
Area ratio |
Without pre-opening |
A1/A2 ~ 1/3.5 (see sectional drawing) | |
|
With pre-opening |
A3/A2 ~ 1/12.5 (see sectional drawing) | ||
|
Version "SO60" |
A1/A4 ~ 1/7 (see sectional drawing) | ||
| 1) | in free direction |
| 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. |
Selection of optimal sealing material also depends on the type of hydraulic fluid used.
For applications outside these parameters, please consult us!
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
|
|
Mineral oils |
HL, HLP, HLPD |
NBR, FKM |
DIN 51524 |
|
|
Bio-degradable |
Insoluble in water |
HETG |
NBR, FKM |
VDMA 24568 |
|
HEES |
FKM |
|||
|
Soluble in water |
HEPG |
FKM |
VDMA 24568 |
|
|
Flame-resistant |
Water-free |
HFDU, HFDR |
FKM |
ISO 12922 |
|
Containing water |
HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) |
NBR |
ISO 12922 |
|
Important information on hydraulic fluids!For further information and data on the use of other hydraulic fluids, please refer to data sheet 90220 or contact us! There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature.Flame-resistant – containing water: Maximum operating pressure 210 bar Maximum hydraulic fluid temperature 60 °C Life cycle compared to operation with mineral oil HL, HLP 30 to 100 % |
||||
(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 |