Z1S6P50-4X/V
Manufacturer: Bosch Rexroth
Material #: R901086055
Model : Z1S6P50-4X/V
***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 Z1S6P50-4X/V (R901086055) is a direct operated check valve in a sandwich plate design, specifically engineered for leak-free blocking in one direction and free flow in the opposite. This valve features a stroke-limited poppet by a plastic socket, ensuring precise control of fluid movement. The integrated spring aids the closing movement of the poppet and maintains its closed position when there's no fluid flow, providing a reliable seal.
Designed for versatility, the Z1S6P50-4X/V can function both as an angle valve linking or closing off up to three internal channels and as a straight-through valve. The plug screw within this model takes on the stop and sealing functions effectively. It is important to note that when installed with the blue plastic socket facing the plate side, no additional seal ring should be used at that position; however, at the component side, a seal ring ensures proper sealing for downstream assemblies.
This model's plastic socket not only limits stroke but also serves as an essential sealing element that must remain intact and undamaged to ensure optimal performance. The Z1S6P50-4X/V is designed with corrosion protection in mind and can be adjusted for special hydraulic fluids by exchanging external seal rings. Optional features include measuring ports and throttle check valve capabilities upon request.
The Z1S6P50-4X/V conforms to ISO porting patterns, offering various one- and two-channel blocking functions while guaranteeing perfect leak-tightness with its high-performance plastic poppet construction. This model is suitable for vertical stacking applications within hydraulic systems requiring precise flow control and check functionality under maximum operating pressures of up to X bar and maximum flow rates of l/min, making it an essential component for a wide range of hydraulic circuit designs.
$526.00 USD
More are expected on July 1, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as July 1, 2025 when ordered in
This product is eligible for factory repair.
The valve type Z1S is a direct operated check valve in sandwich plate design.
It is used for the leakage-free blocking in one direction and allows for free flow in the opposite direction.
The stroke of the poppet (1) is limited by the plastic socket (2). The installed spring (3) supports the closing movement. When no fluid flows through the valve, the spring (3) keeps the poppet (1) in closed position.
In contrast to the straight-through valve (section 1), the angle valve (section 2) links or closes off up to three internal channels. Stop and sealing function are taken over by the plug screw (4).
Notice:
For all installation positions in which the blue plastic socket (2) is mounted at the plate side ➁, no additional seal ring may be used at this position!
At the component side ➀, the seal ring (5) (as usual) seals the assembly installed downstream.
The installed plastic socket (2) has a sealing function and may not be removed or damaged.
Section 1: Type Z12 6 F (straight-through valve)
Section 2: Type Z1S 6 B-A (angle valve)
(measured with HLP46, ϑOil = 40 ±5 °C)
Straight-through valve
∆p-qV-characteristic curves (A2 → A1)
Angle valve
Straight-through valve (➀ = component side, ➁ = plate side)
Version "A"
Version "D"
Version "P"
Version "B"
Version "E"
Version "T"
Version "C"
Version "F"
Angle valve (➀ = component side, ➁ = plate side)
Version "AB-P"
Version "T-P"
Version "B-A"
Examples of special versions (➀ = component side, ➁ = plate side)
Version "SO68"
(check valve in channel P, measuring port P Out G1/4)
Version "SO118"
(check valve in channel P, measuring port P Out G1/4)
Version "SO90"
(check valve in channel P, measuring port A and B G1/4)
Version "SO2"
(check valve in channel P, measuring port T G1/4)
Version "SO104"
(check valve in channel P, direction of flow P1 → P2)
Straight-through valve
Dimensions in mm
|
|
Required surface quality of the valve contact surface |
|
Type |
B1 |
B2 |
H1 |
H2 |
|
mm |
mm |
mm |
mm |
|
| Z1S 6 C...SO68 | 22 | - | 13.5 | - |
| Z1S 6 P...SO68 | - | 26.5 | - | 13 |
| Z1S 6 P...SO118 | 26.5 | - | 13 | - |
| Z1S 6 P...SO90 | 22 | 22 | 20 | 20 |
| Z1S 6 P...SO2 | - | 17.5 | - | 20 |
|
① |
component side |
|
② |
plate side |
|
1 |
Name plate |
|
2 |
Identical seal rings for ports A, B, P, T (plate side) |
|
3 |
Plastic socket, blue (plate side) |
|
4 |
Valve mounting bores |
|
5 |
Porting pattern according to ISO 4401-03-02-0-05 |
|
6 |
Plug screw for measuring port, tightening torque MA = 30 Nm + 10 % |
|
7 |
Locking pin ISO 8752-3x8-St (only version "60" and "62") |
|
8 |
Bore for locking pin (only version "60" and "62") |
Valve mounting screws (separate order)
|
Size |
Quantity |
Hexagon socket head cap screws |
Material number |
|
6 |
4 |
ISO 4762 - M5 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.
Angle valve
Dimensions in mm
|
|
|
Required surface quality of the valve contact surface |
|
Type |
B3 |
|
mm |
|
| Z1S 6 AB-P | 24.5 |
| Z1S 6 T-P | 24.5 |
| Z1S 6 B-A | 22 |
|
1 |
Name plate |
|
2 |
Identical seal rings for ports A, B, P, T (plate side) |
|
3 |
Plastic socket, blue (plate side) |
|
4 |
Valve mounting bores |
|
5 |
Porting pattern according to ISO 4401-03-02-0-05 |
|
7 |
Locking pin ISO 8752-3x8-St (only version "60" and "62") |
|
8 |
Bore for locking pin (only version "60" and "62") |
|
9 |
Plug screw, tightening torque MA = 55 Nm + 10 % |
|
① |
component side |
|
② |
plate side |
Valve mounting screws (separate order)
|
Size |
Quantity |
Hexagon socket head cap screws |
Material number |
|
6 |
4 |
ISO 4762 - M5 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.
Check valve installation set: Disassembly and assembly
Disassembly/assembly without causing damage is achieved by using the special multi-purpose tool (1) (separate order, material no. R901182853).
Disassembly:
Push out the check valve installation set.
Assembly:
Insert the check valve installation set and push in the plastic socket (2).
With correct assembly using the special multi-purpose tool (1), the protrusion of the plastic socket (2) is approx. 0.3 mm.
Notice:
Once removed, plastic sockets may no not be used again.
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