BOSCH REXROTH
R900409893
$437.00 USD
- BOSCH REXROTH
- Material:R900409893
- Model:ZDB6VA2-4X/315V
Quantity in stock: 0
The Bosch Rexroth ZDB6VA2-4X/315V (R900409893) is a high-performance industrial hydraulic valve designed for reliable pressure relief at a set value. This pilot-operated valve features a spool symbol A T and is capable of handling a maximum pressure as indicated in its product specifications. It belongs to the product group ID and is equipped with mechanical actuation, ensuring precise operation through manual intervention. The ZDB6VA2-4X/315V valve offers various connection types and an interim assembly compatible with NFPA T.. R D Size CETOP D standards, as well as adhering to ISO connection diagram requirements. It is designed for sandwich plate mounting with porting patterns according to ISO standards, which can include an optional locating hole. The valve's versatility is further highlighted by its suitability for different hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR. This model comes in a size that allows for a maximum flow rate as specified in its detailed specifications and features FKM seals for enhanced durability and performance under various operating conditions. The valve's construction includes one or two pressure valve cartridges and offers different adjustment types for system pressure settings such as rotary knob options—some with scales or locks—and sleeves with hexagons and protective caps. The Bosch Rexroth ZDB6VA2-4X/315V valve ensures safe operation by maintaining the desired pressure level within hydraulic systems while allowing for external pilot oil drainage via channel T. Its corrosion-protected design makes it suitable for harsh environments while providing users with multiple circuit options and pressure ratings to meet diverse application needs. With its robust construction and precise adjustability features, this model stands out as an essential component in industrial hydraulic systems where controlled pressure relief is critical.
Size 6, symbol A - T, with manual actuation
Industrial hydraulic valve in a high performance range. Reliable pressure limitation to setting value
Unpacked Weight: 1.14 kg
Pressure valves of type ZDB and Z2DB are pilot-operated pressure relief valves in sandwich plate design.
They are used for limiting a system pressure.
The valves basically consist of the housing (7) and one or two pressure valve cartridges.
The system pressure can be set via the adjustment type (4).
Example version "VA":
In the initial position the valves are closed. The pressure in channel A acts on the spool (1). At the same time, pressure is applied to the spring-loaded side of the spool (1) via nozzle (2) and to the pilot poppet (6) via nozzle (3). If the pressure in channel A exceeds the value set at the spring (5), the pilot poppet (6) opens.
Hydraulic fluid flows from the spring-loaded side of the spool (1), nozzle (3), channel (8) into channel T. The resulting pressure drop moves the spool (1) and thus opens the connection from A to T while maintaining the pressure set at spring (5).
Die pilot oil drain from the two spring chambers is effected externally, via channel T.
Type ZDB 6 VA2-...
➀ = component side
➁ = plate side
| On/off valve |
| Pressure relief valve |
| Internal hexagon with protective cap |
| Size 6 |
| Maximum operating pressure 315 bar |
| Component series 4X |
| Maximum flow 60 l/min |
| Data Sheet | Download Data Sheet |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Spool symbol | A – T |
| Max. pressure | 315 |
| Productgroup ID | 9,10,11,12,13,14 |
| Number of ports | 4 |
| Type of actuation | with manual actuation |
| Size | 6 |
| Max. flow | 60 |
| 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 | 1.14 |
| Seals | FKM |
| Hydraulic fluid | HL,HLP,HLPD,HVLP,HVLPD,HETG,HEES,HEPG,HFDU,HFDR |
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
11 |
12 |
||
|
Z |
DB |
6 |
– |
4X |
/ |
* |
|
01 |
Sandwich plate |
Z |
|
02 |
1 pressure valve cartridge (only with version “VA”, “VB” and “VP”) |
no code |
|
2 pressure valve cartridges (only with version “VC” and “VD”) |
2 |
|
|
03 |
Pressure relief valve |
DB |
|
04 |
Size 6 |
6 |
|
Relief function from – to: |
||
|
05 |
A – T |
VA |
|
P – T |
VP |
|
|
B – T |
VB |
|
|
A – T and B – T |
VC |
|
|
A – B and B – A |
VD |
|
|
Adjustment type for pressure adjustment |
||
|
06 |
Rotary knob |
1 |
|
Sleeve with hexagon and protective cap |
2 |
|
|
Lockable rotary knob with scale |
31) |
|
|
Rotary knob with scale |
7 |
|
|
07 |
Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions) |
4X |
|
Pressure rating |
||
|
08 |
Set pressure up to 50 bar |
50 |
|
Set pressure up to 100 bar |
100 |
|
|
Set pressure up to 200 bar |
200 |
|
|
Set pressure up to 315 bar |
315 |
|
|
Corrosion resistance |
||
|
09 |
None |
no code |
|
Improved corrosion protection (240 h salt spray test according to EN ISO 9227) |
J3 2) |
|
|
High corrosion protection (720 h salt spray test according to EN ISO 9227) |
J5 2) |
|
|
Seal material |
||
|
10 |
NBR seals |
no code |
|
FKM seals |
V |
|
|
Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) |
||
|
11 |
Without locating hole |
no code |
|
With locating hole |
/60 3) |
|
|
12 |
Further details in the plain text |
* |
| 1) | Key with material no. R900008158 is included in the scope of delivery. |
| 2) | Only with adjustment type "2", however without protective cap |
| 3) | Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order) |
general
|
Size |
6 | ||
|
Weight (approx.) |
Type ZDB 6 |
kg |
1 |
|
Type Z2DB 6 |
kg |
1.2 | |
|
Installation position |
any | ||
|
Ambient temperature range |
°C |
-20 … +80 | |
hydraulic
|
Size |
6 | ||
|
Maximum operating pressure |
bar |
315 | |
|
Maximum counter pressure 1) |
bar |
315 | |
|
Maximum set pressure |
bar |
50 100 200 315 |
|
|
Maximum flow |
l/min |
60 | |
|
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 2) |
Class 20/18/15 according to ISO 4406 (c) | ||
| 1) | Observe the maximum tank pressure of the subplate-mounted valve/directional valve |
| 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. |
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
Data sheet |
|
|
Mineral oil |
HL, HLP |
FKM, NBR |
DIN 51524 |
90220 |
|
|
Bio-degradable 1) |
Insoluble in water |
HETG |
FKM |
ISO 15380 |
90221 |
|
HEES |
FKM |
||||
|
Soluble in water |
HEPG |
FKM |
ISO 15380 |
||
|
Flame-resistant |
Water-free |
HFDU (glycol base) |
FKM |
ISO 12922 |
90222 |
|
HFDU (ester base) 1) |
FKM |
||||
|
HFDR |
FKM |
||||
|
Containing water |
HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) |
NBR |
ISO 12922 |
90223 |
|
|
Important information on hydraulic fluids: For further information and data on the use of other hydraulic fluids, please refer to the data sheets above or contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The ignition temperature of the hydraulic fluid used must be 50 K higher than the maximum surface temperature. Flame-resistant – containing water: Maximum pressure differential 210 bar, otherwise, increased cavitation erosion Life cycle as compared to operation with mineral oil HL, HLP 30 … 100% Maximum hydraulic fluid temperature 60 °C Bio-degradable and flame-resistant: If this hydraulic fluid is used, small amounts of dissolved zinc may get into the hydraulic system. |
|||||
| 1) | Not recommended for corrosion-protected version "J3" and "J5" (contains zinc) |
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
pE-qV characteristic curves
pE min-qV characteristic curves
Notice:
The characteristic curves apply to the pressure at the valve output p = 0 bar across the entire flow range.
Type ZDB 6 VA...
Type ZDB 6 VB...
Type ZDB 6 VP...
Type Z2DB 6 VC...
Type Z2DB 6 VD...
➀ = component side
➁ = plate side
Version "VA"
(dimensions im mm)
Dimensions in mm
|
1 |
Name plate |
|
2 |
Adjustment type "1" |
|
3 |
Adjustment type "2" (with version "J3" and "J5" without protective cap) |
|
4 |
Adjustment type "3" |
|
5 |
Adjustment type "7" |
|
6 |
Dimensions required to remove the key |
|
7 |
Valve mounting bores |
|
8 |
Lock nut SW24, tightening torque MA = 10+5 Nm |
|
9 |
Hexagon SW10 |
|
10 |
Identical seal rings for ports A, B, P, T (plate side) |
|
11 |
Hexagon SW24, tightening torque MA = 50 Nm |
|
12 |
plate side – Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep for locking pin ISO 8752-3x8-St, material no. R900005694, separate order) |
|
13 |
component side – porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø4 x 4 mm deep) |
Version "VB" and "VP"
(dimensions im mm)
Dimensions in mm
|
1 |
Name plate |
|
2 |
Adjustment type "1" |
|
3 |
Adjustment type "2" (with version "J3" and "J5" without protective cap) |
|
4 |
Adjustment type "3" |
|
5 |
Adjustment type "7" |
|
6 |
Dimensions required to remove the key |
|
7 |
Valve mounting bores |
|
8 |
Lock nut SW24, tightening torque MA = 10+5 Nm |
|
9 |
Hexagon SW10 |
|
10 |
Identical seal rings for ports A, B, P, T (plate side) |
|
11 |
Hexagon SW24, tightening torque MA = 50 Nm |
|
12 |
plate side – Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep for locking pin ISO 8752-3x8-St, material no. R900005694, separate order) |
|
13 |
component side – porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø4 x 4 mm deep) |
Version "VC" and "VD"
(dimensions im mm)
Dimensions in mm
|
1 |
Name plate |
|
2 |
Adjustment type "1" |
|
3 |
Adjustment type "2" (with version "J3" and "J5" without protective cap) |
|
4 |
Adjustment type "3" |
|
5 |
Adjustment type "7" |
|
6 |
Dimensions required to remove the key |
|
7 |
Valve mounting bores |
|
8 |
Lock nut SW24, tightening torque MA = 10+5 Nm |
|
9 |
Hexagon SW10 |
|
10 |
Identical seal rings for ports A, B, P, T (plate side) |
|
11 |
Hexagon SW24, tightening torque MA = 50 Nm |
|
12 |
plate side – Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep for locking pin ISO 8752-3x8-St, material no. R900005694, separate order) |
|
13 |
component side – porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø4 x 4 mm deep) |
|
14.1 |
Version “VC” |
|
14.2 |
Version “VD” |
Valve mounting screws (separate order)
Version „J3“4 hexagon socket head cap screws ISO 4762 - M5 - 10.9-CM-Fe-ZnNi-5-Cn-T0-H-B
friction coefficient μtotal = 0,09 … 0,14
tightening torque MA = 7,4 Nm ± 10 %
Version „J5“
4 hexagon socket head cap screws ISO 4762 - M5 - 10.9-CM-Fe-ZnNi-8-Cn-T0-H-B
friction coefficient μtotal = 0,09 … 0,14
tightening torque MA = 7,4 Nm ± 10 %
Without corrosion protection
4 hexagon socket head cap screws ISO 4762 - M5 - 10.9
friction coefficient μtotal = 0,12 … 0,17
tightening torque MA = 8,1 Nm ± 10 %