BOSCH REXROTH
R900455714
$853.36 USD
- BOSCH REXROTH
- Material:R900455714
- Model:Z2FS6-3-4X/2QV
Quantity in stock: 0
The Bosch Rexroth Z2FS6-3-4X/2QV (R900455714) is a high-performance industrial hydraulic twin throttle check valve designed for reliable flow regulation. This sandwich plate valve is specifically tailored for applications requiring precise control of hydraulic fluid in one or two actuator ports. It features a direct actuated lockable rotary knob with scale, which ensures accurate adjustments can be made to the flow settings. The Z2FS6-3-4X/2QV allows for the throttling of flow in one direction while enabling free return flow in the opposite direction, thus providing efficient control over hydraulic systems. The valve's mechanical actuation and symmetrical alignment of two throttle check valves facilitate the smooth operation of actuator velocity adjustments. Its versatility allows it to be used both for main flow limitation (Version Q) and pilot flow limitation, catering to different system requirements. Equipped with a variety of adjustment types including a setscrew with lock nut and protective cap, as well as a spindle with an internal hexagon and scale, this valve offers flexibility in system integration and maintenance. The Z2FS6-3-4X/2QV adheres to industry standards with porting patterns according to DIN and ISO specifications, ensuring compatibility with various hydraulic systems. This model from Bosch Rexroth has been engineered to handle a maximum operating pressure and offers a maximum flow rate that suits demanding industrial environments. Its robust design includes FKM seals that are compatible with a range of hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR. Additionally, the valve's construction ensures durability and resistance against challenging operational conditions.
Size 6, 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: 1.28 kg
The valve type Z2FS is a twin throttle check valve in sandwich plate design. It is used for the main or pilot flow limitation of one or two actuator ports.
Two throttle check valves aligned symmetrically to each other limit flows 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) formed by the valve seat (2) and the throttle spool (3) to actuator A➁. The throttle spool (3) can be axially adjusted via the setscrew (4) for adjustment of the throttling point (1).
The hydraulic fluid return flow from actuator A➁ displaces the valve seat (2) against the spring (5) in the direction of the throttle spool (3) and enables the unobstructed flow as check valve. Depending on the installation position, the throttling effect may occur in supply or discharge.
Main flow limitation (Version "2Q")
For actuator velocity adjustment (main flow limitation), the twin throttle check valve is installed between the directional valve and the subplate.
Pilot flow limitation (Version "1Q")
With pilot-operated directional valves, the twin throttle check valve can be applied for switching time adjustment (pilot flow limitation). In this case, it is installed between the pilot control valve and the main valve.
Type Z2FS 6 –2…
(Supply throttling)
|
➀ |
component side |
|
➁ |
plate side |
| Direct actuated |
| Lockable rotary knob with scale |
| Standard setting |
| Component series 4X |
| Maximum flow 80 l/min |
| Size 6 |
| Maximum operating pressure 315 bar |
| 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 or A2 → A1, B2 → B1 |
| 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 | 1.28 |
| Seals | FKM |
| Hydraulic fluid | HL,HLP,HLPD,HVLP,HVLPD,HETG,HEES,HEPG,HFDU,HFDR |
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
||
|
Z2FS |
6 |
– |
4X |
/ |
* |
|
01 |
Twin throttle check valve, sandwich plate design |
Z2FS |
|
02 |
Size 6 |
6 |
|
03 |
Throttle check valve side A and B |
– 1) |
|
Throttle check valve side A |
A |
|
|
Throttle check valve side B |
B |
|
|
Adjustment type |
||
|
04 |
Setscrew with lock nut and protective cap |
2 |
|
Lockable rotary knob with scale |
3 2) |
|
|
Spindle with internal hexagon and scale |
5 |
|
|
Rotary knob with scale |
7 |
|
|
05 |
Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions) |
4X |
|
06 |
With fine adjustment |
1Q |
|
Standard version |
2Q |
|
|
Seal material |
||
|
07 |
NBR seals |
no code |
|
FKM seals |
V |
|
|
Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) |
||
|
08 |
no code |
|
|
With locating hole |
/60 3) |
|
|
09 |
Further details in the plain text |
* |
| 1) Identical adjustment types on sides A and B | |
| 2) H-key with material no. R900008158 is included in the scope of delivery. | |
| 3) Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order) |
Preferred types and standard units are contained in the EPS (standard price list).
general
|
Size |
6 | ||
|
Weight (approx.) |
kg |
0.8 | |
|
Installation position |
any | ||
|
Ambient temperature range |
°C |
-20 … +80 | |
hydraulic
|
Size |
6 | ||
|
Maximum operating pressure |
bar |
315 | |
|
Maximum flow |
l/min |
80 | |
|
Hydraulic fluid |
see table | ||
|
Hydraulic fluid temperature range |
°C |
-20 … +80 | |
|
Viscosity range |
mm²/s |
10 … 800 | |
|
Maximum admissible degree of contamination of the hydraulic fluid 1) |
Class 20/18/15 according to ISO 4406 (c) | ||
| 1) | 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. |
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
|
|
Mineral oils and related hydrocarbons |
HL, HLP, HLPD |
NBR, FKM |
DIN 51524 |
|
|
Environmentally compatible |
Insoluble in water |
HETG |
NBR, FKM |
ISO 15380 |
|
HEES |
FKM |
|||
|
Soluble in water |
HEPG |
FKM |
ISO 15380 |
|
|
Containing water |
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.)!Flame-resistant – containing water: Maximum operating pressure 210 bar Maximum hydraulic fluid temperature 60 °C Expected life cycle as compared to HLP hydraulic oil 30 % to 100 % |
||||
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves (Version "2Q")
Δp-qV characteristic curves (Version "1Q")
Δp-qV characteristic curves for Z2FS 6 ... via open check valve with closed throttle
Supply throttling
Type Z2FS 6 –…
Type Z2FS 6 B…
Discharge throttling
Type Z2FS 6 –…
Type Z2FS 6 A…
|
➀ |
component side |
|
➁ |
plate side |
Dimensions in mm
|
➀ |
Component side – porting pattern according to ISO 4401-03-02-0-05 (with locating hole Ø3 x 5 mm deep) |
|
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") |
|
1 |
Name plate |
|
2 |
Adjustment type "2" |
|
3 |
Adjustment type "3" |
|
4 |
Adjustment type "5" |
|
5 |
Adjustment type "7" |
|
6 |
Space required to remove the key |
|
7 |
Valve mounting bores |
|
8 |
Lock nut SW10 |
|
9 |
Setscrew/spindle for flow cross-section adjustment (internal hexagon SW5) |
|
10 |
Same seal rings for ports A, B, P, T |
|
11 |
Seal ring plate |
|
12 |
for all adjustment types: Left rotation = higher flow Right rotation = lower flow |
|
13 |
Modification from discharge to supply control is realized by rotation of the device around axis "X" – "X" |
|
14 |
Stroke |
|
15 |
Plug screw SW22 |
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.
Valve mounting screws (separate order)
4 hexagon socket head cap screws ISO 4762 - M5 - 10.9