PRESSURE RELIEF VALVE -Z ZDB10VA2-4X/50V
Manufacturer: Bosch Rexroth
Material #: R900423244
Model : ZDB10VA2-4X/50V
***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 ZDB10VA2-4X/50V (R900423244) is a high-performance pressure relief valve designed for industrial hydraulic systems. This pilot-operated valve in sandwich plate design is specifically engineered to maintain and limit system pressure, ensuring stable operation across various applications. The ZDB10VA2-4X/50V is comprised of a durable housing and either one or two pressure valve cartridges, depending on the needs of the system.
The valve operates by remaining closed at initial position, with system pressure from channel A acting on its spool. Through precise adjustment mechanisms, the desired system pressure can be set easily. When the pressure in channel A exceeds the set value, the pilot poppet activates to allow hydraulic fluid to flow and balance out the pressure differential—effectively regulating the overall system pressure.
This model offers flexibility in terms of adjustment types for setting system pressure, which includes options such as a rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale, or a simple rotary knob with scale. Additionally, it features a corrosion-protected design that enhances its durability and longevity in challenging environments.
The ZDB10VA2-4X/50V conforms to ISO porting patterns and comes with various circuit options. It has a size designation of 10 and belongs to component series X. The maximum operating pressure this valve can handle is up to 350 bar (5076 psi), while it supports maximum flow rates up to 50 liters per minute (l/min). This combination of features makes it an essential component for hydraulic systems requiring precise control over their operational pressures.
$506.00 USD
More are expected on April 22, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 22, 2025 when ordered in
This product is eligible for factory repair.
Size 10, symbol A - TA, with manual actuation
Industrial hydraulic valve in a high performance range. Reliable pressure limitation to setting value
Unpacked Weight: 2.560 kg
Sandwich plate valve Porting pattern according to ISO 4401-05-04-0-05 4 pressure ratings 6 circuit options With 1 or 2 pressure valve cartridges 4 adjustment types for pressure adjustment, optionally
• Rotary knob
• Sleeve with hexagon and protective cap
• Lockable rotary knob with scale
• Rotary knob with scale Corrosion-protected design
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).
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) and channel (8) into channel T (TA). The resulting pressure drop moves the spool (1) and opens the connection from A to T (TA). In channel A, the pressure set at the spring (5) settles.
Type ZDB 10 VA2-4X/…V
➀ = component side
➁ = plate side
(measured with HLP46, ϑOil = 40 ±5 °C)
pE-qV characteristic curves
pE-qV characteristic curves
pE min-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 10 VA…
Type ZDB 10 VB…
Type ZDB 10 VP…
Type ZDB 10 VT…
Type Z2DB 10 VC…
Type Z2DB 10 VD…
➀ = component side
➁ = plate side
Notice:
Deviating from ISO 4401, port T is referred to with TA and port T1 is referred to with TB in this data sheet.
Version "VA", "VP" and "VT"
(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 |
|
9 |
Hexagon SW10 |
|
10 |
Identical seal rings for ports A, B, P, TA, TB (plate side) |
|
11 |
Sealing plate 80 x 70 x 1.5 mm (only with version “VA” and “VP”) |
|
12 |
Countersinks (only with version “VT”) |
|
13 |
Versions “VA” and “VP” |
|
14 |
Version “VT” |
|
15 |
Hexagon SW30, tightening torque MA = 50 Nm |
|
➀ |
component side – Porting pattern according to ISO 4401-05-04-0-05 |
|
➁ |
plate side – Porting pattern according to ISO 4401-05-04-0-05 |
|
Type |
B1 |
B2 |
B3 |
H |
L1 |
L2 |
L3 |
L4 |
L5 |
L6 |
L7 |
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
|
| VA/VP | 69 | 11.5 | 20.7 | 26 | 227 | 203 | 117 | 57.6 | 50.3 | 4 | 45.5 |
| VT | 70 | 12 | 27 | 25 | 218 | 194 | 105 | 60.9 | 53.6 | 0.7 | 32.5 |
Version "VB"
(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 |
|
9 |
Hexagon SW10 |
|
10 |
Identical seal rings for ports A, B, P, TA, TB (plate side) |
|
11 |
Sealing plate 80 x 70 x 1.5 mm (only with version “VA” and “VP”) |
|
15 |
Hexagon SW30, tightening torque MA = 50 Nm |
|
➀ |
component side – Porting pattern according to ISO 4401-05-04-0-05 |
|
➁ |
plate side – Porting pattern according to ISO 4401-05-04-0-05 |
Version “VC” and “VD”
(dimensions in 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 |
|
9 |
Hexagon SW10 |
|
10 |
Identical seal rings for ports A, B, P, TA, TB (plate side) |
|
15 |
Hexagon SW30, tightening torque MA = 50 Nm |
|
➀ |
component side – Porting pattern according to ISO 4401-05-04-0-05 |
|
➁ |
plate side – Porting pattern according to ISO 4401-05-04-0-05 |
|
Type |
L1 |
L2 |
L3 |
L4 |
L5 |
L6 |
L7 |
L8 |
L9 |
L10 |
L11 |
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
|
| VC | 123 | 111 | 112 | 89 | 90 | 59 | 60 | 52 | 53 | 2 | 1 |
| VD | 132 | 107 | 112 | 85 | 90 | 56 | 56 | 49 | 49 | 6 | 6 |
Notices:
To port X and Y bored according to ISO 4401-05-05-0-05 (e.g. for pilot-operated directional valve NG10), version “SO30“ applies at the end of the ordering code! Deviating from ISO 4401, port T is referred to with TA and port T1 is referred to with TB in this data sheet.
Valve mounting screws (separate order)
Version "J3"4 hexagon socket head cap screws ISO 4762 - M6 - 10.9-CM-Fe-ZnNi-5-Cn-T0-H-B
friction coefficient µtotal = 0,09 … 0.14
Version "J5"
4 hexagon socket head cap screws ISO 4762 - M6 - 10.9-CM-Fe-ZnNi-8-Cn-T0-H-B
Friction coefficient µtotal = 0,09 … 0.14
Without corrosion protection
4 hexagon socket head cap screws ISO 4762 - M6 - 10.9
Friction coefficient µtotal = 0.12 … 0.17
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.
Type Z2DB 10 VC and VD
Dimensions in mm
| 1) | Fit |
Type ZDB 10 VA, VP and VT
Dimensions in mm
| 1) | Fit |
Type ZDB 10 VA, VP and VT
Dimensions in mm
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