THROTTLE CHECK VALVE Z2FS16-8-3X/S2V
Manufacturer: Bosch Rexroth
Material #: R900473688
Model : Z2FS16-8-3X/S2V
***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/S2V (R900473688) is a high-performance industrial hydraulic valve designed for reliable flow throttling to a set value. This direct-actuated sandwich plate valve is part of the ZFS series, known for its capability to limit the flow of one or two actuator ports efficiently. It features two symmetrically arranged throttle check valves that use adjustable throttle spools to manage flow in one direction while allowing free return flow in the opposite direction.
The valve's design includes a spindle with an internal hexagon for easy adjustment of the throttle point, ensuring precise control over the hydraulic fluid flow. The model code indicates that it can be used with spool symbols A A, B B or A A, B B, and it is mechanically actuated. With a maximum pressure capacity and compatibility with numerous hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR (as specified by seals FKM), this valve demonstrates versatility across various applications.
The Z2FS16-8-3X/S2V valve offers meter-in or meter-out throttling and can be installed between the directional valve and the subplate for actuator velocity adjustment. It conforms to NFPA T.. R D and ISO porting patterns standards and can support a maximum operating pressure of up to bar (as per productgroup ID) and a maximum flow rate of l/min. With its robust size CETOP D design and weighing in at . kg., this component promises durability and reliability in controlling fluid dynamics within hydraulic systems.
$1,098.00 USD
More are expected on January 13, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as January 13, 2025 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: 4.38 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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