PRESSURE RELIEF VALVE DBDS4K1X/200VE
Manufacturer: Bosch Rexroth
Material #: R901075507
Model : DBDS4K1X/200VE
***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 DBDS4K1X/200VE (R901075507) is a direct operated pressure relief valve, designed for high-performance industrial hydraulic systems. It is engineered to provide reliable pressure limitation up to its setting value. This model features a hexagon screw with a protective cap for secure and precise adjustment of the system pressure. The valve is part of the component series X, indicating its robust design and compatibility with modern hydraulic requirements.
With a size specification and a maximum operating pressure of 200 bar, the DBDS4K1X/200VE ensures efficient control over hydraulic flow. It has a maximum flow capacity, which allows it to handle substantial volumes of hydraulic fluid without compromising performance. The valve comes with FKM seals, ensuring compatibility with HL and HLP hydraulic fluids and resistance to high temperatures and chemical degradation.
This model operates using mechanical actuation, which contributes to its straightforward design and ease of integration into various systems. It is constructed as a screw-in cartridge valve, simplifying installation and maintenance while providing secure mounting within hydraulic blocks.
The DBDS4K1X/200VE valve has multiple ports including main port P and T, facilitating versatile applications in different circuit designs. Its direct actuation mechanism ensures quick response times to changes in system pressure, enhancing overall efficiency and safety.
In summary, the Bosch Rexroth DBDS4K1X/200VE offers precise control for industrial hydraulic systems requiring dependable pressure relief functions. Its robust construction, coupled with high-pressure capabilities and flexible configuration options through various adjustment types like grub screws or hand wheels, makes it suitable for demanding applications where consistent performance is critical.
$1,889.00 USD
More are expected on April 14, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 14, 2025 when ordered in
This product is eligible for factory repair.
Size 4, P → T, mechanical
Industrial hydraulic valve in a high performance range. Reliable pressure limitation to setting value
Unpacked Weight: 0.24 kg
Cartridge valve 8 pressure ratings 2 adjustment types, optionally:
• Grub screw with internal hexagon
• Hand wheel
The pressure valve type DBD..K.. is a direct operated pressure relief valve for installation in block designs. It is used to limit a system pressure. The system pressure can be set via the adjustment type (5).
In the initial position the valve is closed. Via control line (1) and poppet (2), the pressure in the main port ➀ acts on the spring plate (3). If the pressure in the main port ① rises above the value set at the compression spring (4), the poppet (2) opens and the hydraulic fluid flows into the main port ➁.
Type DBDS 4 K1X/.V
➀ = Main port 1 (P)
➁ = Main port 2 (T)
(measured with HLP46, ϑOil = 40 ±5 °C)
pE-qV characteristic curve
Δp-qv characteristic curve
Notes:
The characteristic curves apply to output pressure = zero in the entire volume flow range and were measured without housing resistance.
Counter pressure in the discharge line
Basically, the valve should be operated without counter pressure in the discharge line, if possible. With counter pressure in the discharge line, the maximum flow possible is reduced. There is a relation between the maximum counter pressure pT in the discharge line and flow qV, which can be seen from the following characteristic curves. Characteristic curves for intermediate values of the response pressure which are not listed must be determined by means of interpolation.
With a flow approaching zero, the maximum counter pressure pT is in each case 10 % of the response pressure. With increasing flow, the maximum counter pressure pT is reduced.
Interpolation of intermediate values from the diagram
At the axis pT , mark 1/10 of the value of pA . Determine the next lower and the next higher characteristic curve for this point. The point marked at pT divides the section between lower and higher characteristic curve on the pTaxis with a certain percentage. At the qVmax axis, divide the section between next lower and next higher characteristic curve in the same percentage as the section at the pT axis. From the zero position flow on the qVmax axis determined in that way, draw a straight line to the value on the pT axis marked before. Mark the system flow to be secured at the qVmax axis. Read off the maximum counter pressure for this value using the line at the pT axis drawn before.
Determination of the maximum counter pressure
Example (with already existing characteristic curve):
Flow of the system / accumulator to be secured: qVmax = 5 l/min Safety valve set to: pA = 500 bar. Read off the maximum counter pressure pT of approx. 36 bar from the diagram (see arrows, characteristic curve 7).Diagram for determining the maximum counter pressure pT in the discharge line at port T of the valve dependent on the flow qVmax for valves type DBD... with different response pressures pA.Intermediate values may be determined by means of interpolation. Regarding the procedure for interpolation refer to "Interpolation of intermediate values from the diagram".
|
pA |
Response pressure in bar |
|
pT |
Maximum counter pressure in the discharge line (port T) in bar |
|
qV max |
Maximum flow in l/min |
Dimensions in mm
|
1.1 |
Adjustment type “S”, internal hexagon SW5 |
|
1.2 |
Adjustment type “H”, hand wheel |
|
2 |
Lock nut SW17, tightening torque MA = 10+5 Nm |
|
3 |
Hexagon SW17, tightening torque during screw-in MA = 23±2 Nm |
|
4 |
embossed type designation |
|
➀ |
Main port 1 (P) |
|
➁ |
Main port 2 (T) |
Mounting cavity R/DBD: . 4K; 2 main ports; thread M14 x 1
Dimensions in mm
|
1) |
Depth for moving parts |
|
2) |
All seal ring insertion faces are rounded and free of burrs |
|
3) |
With countersink |
|
4) |
Visual inspection |
|
➀ |
Main port 1 (P) |
|
➁ |
Main port 2 (T), can optionally be arranged at the circumference |
|
LS |
Location shoulder |
|
Tolerance for all angles ± 0.5 ° |
|
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