PRESSURE RELIEF VALVE -Z Z2DB6VC2-4X/50V
Manufacturer: Bosch Rexroth
Material #: R900481501
Model : Z2DB6VC2-4X/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 Z2DB6VC2-4X/50V (R900481501) is a high-performance pressure relief valve designed for hydraulic applications requiring precise pressure control. This valve is a pilot-operated device in a sandwich plate design, suitable for limiting system pressure. It incorporates a housing and one or two pressure valve cartridges, allowing for flexibility in hydraulic circuit design. The system's pressure can be adjusted through various adjustment types, ensuring the right setting for specific applications.
This model features an initial closed position, where the spool is influenced by the pressure in channel A. The spool and pilot poppet are both responsive to this pressure through designated nozzles. When the set pressure is exceeded, the pilot poppet initiates an opening sequence that allows hydraulic fluid to flow and equalize the pressure, thus maintaining it at the desired level set by the spring.
The Z2DB6VC2-4X/50V valve ensures external drainage of pilot oil from its spring chambers via channel T. It offers versatility with its sandwich plate design and porting pattern that adheres to ISO standards. Users have options regarding adjustment types for setting system pressure, including rotary knobs and sleeves with hexagon and protective caps, some of which are lockable or come with scales.
This Bosch Rexroth valve boasts corrosion protection and comes in various sizes to accommodate different flow rates and operating pressures. Maximum operating pressures reach up to bar levels while handling maximum flow rates measured in liters per minute (l/min). With its robust design and precise control capabilities, this valve is an integral component for optimizing hydraulic system performance.
$708.00 USD
More are expected on May 1, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as May 1, 2025 when ordered in
This product is eligible for factory repair.
Size 6, symbol A - T and B - T, with manual actuation
Industrial hydraulic valve in a high performance range. Reliable pressure limitation to setting value
Unpacked Weight: 1.460 kg
Sandwich plate valve Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole) 4 pressure ratings 5 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).
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
(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 %
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