PRESSURE RELIEF VALVE -Z ZDB6VA2-4X/100
Manufacturer: Bosch Rexroth
Material #: R900437441
Model : ZDB6VA2-4X/100
***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 ZDB6VA2-4X/100 (R900437441) is a high-performance, pilot-operated industrial hydraulic valve designed for reliable pressure relief up to the set value. This particular model features mechanical actuation and comes with the spool symbol A T. It is crafted to serve as a pressure-limiting device within hydraulic systems, ensuring that pressures do not exceed predetermined limits.
The ZDB6VA2-4X/100 valve is characterized by its sandwich plate design, which allows for a compact and efficient assembly. It includes housing and one or two pressure valve cartridges, depending on the application needs. The system pressure can be easily adjusted through various available adjustment types such as a rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale, or a rotary knob with scale.
This model boasts compatibility with multiple hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, and HFC thanks to its NBR seals. It operates up to a maximum pressure of 350 bar and can handle a maximum flow rate of 100 l/min. The connection diagram adheres to NFPA T3.5.1 R2-2002 D03 standards as well as ISO 4401 porting patterns.
Equipped for versatile applications due to its various circuit options and corrosion-protected design, the ZDB6VA2-4X/100 is suitable for use in complex hydraulic systems requiring precise pressure control. Its robust construction ensures long-term reliability in demanding operational conditions.
In summary, the Bosch Rexroth ZDB6VA2-4X/100 (R900437441) stands out as an essential component for industrial applications where accurate pressure relief is critical for system performance and protection. Its mechanical actuation and customizable settings make it an adaptable solution suited for a wide range of hydraulic tasks.
$448.00 USD
More are expected on April 28, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 28, 2025 when ordered in
This product is eligible for factory repair.
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
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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