THROTTLE CHECK VALVE Z2FS16-8-3X/S
Manufacturer: Bosch Rexroth
Material #: R900459203
Model : Z2FS16-8-3X/S
***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 Z2FS16-8-3X/S (R900459203) is a high-performance industrial hydraulic valve designed for reliable throttling of flow to a preset value. This valve is a mechanically actuated throttle check valve in a sandwich plate design, suitable for flow limitation of one or two actuator ports. It features two symmetrically arranged throttle check valves that limit flows through adjustable throttle spools in one direction while allowing free return flow in the opposite direction.
The Z2FS16-8-3X/S offers precise control over actuator speed by installing it between the directional valve and the subplate, making it ideal for applications requiring meter-in or meter-out throttling. The spindle with an internal hexagon allows for easy adjustment of the throttle spool to manage the flow rate effectively.
This model's maximum operating pressure stands at bar, supporting a maximum flow of l/min. It comes with NBR seals and is compatible with hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, and HFC. The construction adheres to NFPA T.. R D and ISO standards for porting patterns, ensuring broad compatibility and ease of integration into existing hydraulic systems.
The Z2FS16-8-3X/S's robust design includes a number of ports and features direct actuation with mechanical actuation. Its size conforms to CETOP D standards, and it is equipped with a sandwich plate connection type for secure mounting. The product group ID is not specified here but can be referenced through its material number R900459203 for further details on specifications.
In summary, the Bosch Rexroth Z2FS16-8-3X/S valve offers precise control for industrial hydraulic systems requiring dependable flow throttling capabilities with mechanical actuation.
$1,098.00 USD
More are expected on December 30, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as December 30, 2024 when ordered in
This product is eligible for factory repair.
Size 16, A1 → A2, B1 → B2 or A2 → A1, B2 → B1, mechanically actuated
Industrial hydraulic valve in a high performance range. Reliable throttling of the flow to setting value.
Unpacked Weight: 4.42 kg
Sandwich plate valve Porting pattern according to ISO 4401-07-07-0-05 Flow limitation of 2 actuator ports Adjustment type: Spindle with hexagon socket Meter-in or meter-out throttling
The valve type Z2FS is a throttle check valve in sandwich plate design. It is used for the flow limitation of one or two actuator ports.
Two symmetrically arranged throttle check valves limit flows (by adjustable throttle spools) in one direction and allow free return flow in the opposite direction.
In case of supply throttling, the hydraulic fluid is directed through channel A➀ via throttling point (1) to actuator A➁. The throttle spool (2.1) can be axially adjusted via the spindle (3) for adjustment of the throttling point (1).
Simultaneously, the hydraulic fluid in channel A➀ is directed via the bore (4) to the piston side (5).
The active pressure and the spring force retain the throttle spool (2.1) in throttle position.
The hydraulic fluid return flow from actuator B➁ displaces the throttle spool (2.2) and enables the unobstructed flow as check valve. Depending on the version ("S" or "S2"), the throttling effect may occur in supply or discharge.
Flow limitation
For actuator velocity adjustment, the throttle check valve is installed between the directional valve and the subplate.
Supply throttling
|
➀ |
component side |
|
➁ |
plate side |
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves (via check valve with closed throttle)
Δp-qV characteristic curves (constant throttle position)
Supply throttling "S"
Version "-"
Discharge throttling "S2"
Version "-"
Discharge throttling "S2"
Version "A"
Discharge throttling "S2"
Version "A"
Supply throttling "S"
Version "B"
Discharge throttling "S2"
Version "B"
|
➀ |
component side |
|
➁ |
plate side |
Supply throttling "S"
Version "A"
Dimensions in mm
Dimensions in mm
|
1 |
Name plate |
|
2 |
Adjustment type "8“ Spindle for changing the flow cross-section (internal hexagon SW6) Left rotation = higher flow Right rotation = lower flow |
|
3 |
Through holes for valve mounting |
|
4 |
Identical seal rings for connection A, B, P, T |
|
5 |
Identical seal rings for ports X, Y, L |
|
6 |
Locking pin (included in the scope of delivery) |
|
7 |
Hexagon SW19, tightening torque MA see table |
|
8 |
Porting pattern according to ISO 4401-07-07-0-05 |
|
9.1 |
Plug screw with version "B" |
|
9.2 |
Plug screw with version "A" |
|
Version “Corrosion resistance” |
L1 |
L2 |
L3 |
L4 |
L5 |
L6 |
Pos. 7 MA in Nm ±10 % |
|
mm |
mm |
mm |
mm |
mm |
mm |
Nm |
|
| "no code" | 224 | 248 | 224 | 248 | 246 | 294 | 25 |
| „J3“ | 227 | 251 | 227 | 251 | 252 | 300 | 33 |
Valve mounting screws (separate order)
metric4 hexagon socket head cap screws ISO 4762 - M10 - 10.9-flZn-240h-L
2 hexagon socket head cap screws ISO 4762 - M6 - 10.9-flZn-240h-L
UNC
4 hexagon socket head cap screws 3/8-16 UNC
2 hexagon socket head cap screws 1/4-20 UNC
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.
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