SUN HYDRAULICS
DPBPLBN
$138.10 USD
- SUN HYDRAULICS
- Material:DPBPLBN
- Model:DPBP-LBN
- Summary:Cartridge
Quantity in stock: 0
***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 Sun Hydraulics directly.***
The Sun Hydraulics DPBPLBN (DPBPLBN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or be used to actuate larger pilot-operated directional cartridges or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 exceeds a predetermined setting. Notably, port 4 can be blocked to prevent shifting, while port 3 can serve as a work port. The valve's direct-acting and pilot-operated versions are interchangeable, fitting the same cavities and maintaining identical flow paths. Engineered with Sun's floating style construction, the DPBPLBN minimizes internal binding risks due to excessive installation torque or machining variations. It features a maximum operating pressure of 5000 psi (350 bar) and a capacity of 7 gpm (28 L/min). The factory pressure settings are established at a flow rate of 4 gpm (15 L/min). Pressure at port 4 directly adds to the valve setting, allowing modulation between two positions without bistability. For optimal performance, the maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits rather than hydraulic operating limits. If pilot pressure surpasses the valve setting, consider the direct-acting version for lower pilot flow consumption. Additional specifications include a cavity size of T-21A, hex size of .78 in. (22.2 mm), and an installation torque range of 30\u201335 lbf ft (41\u201347 Nm). The adjustment screw has an internal hex size of .532 in. (4 mm), with locknut torque set between 80\u201390 lbf in. (9\u201310 Nm). The model weighs .60 lb (.30 kg) and includes a Viton seal kit for enhanced durability and performance in various applications.
The Sun Hydraulics DPBPLBN (DPBPLBN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or be used to actuate larger pilot-operated directional cartridges or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 exceeds a predetermined setting. Notably, port 4 can be blocked to prevent shifting, while port 3 can serve as a work port. The valve's direct-acting and pilot-operated versions are interchangeable, fitting the same cavities and maintaining identical flow paths. Engineered with Sun's floating style construction, the DPBPLBN minimizes internal binding risks due to excessive installation torque or machining variations. It features a maximum operating pressure of 5000 psi (350 bar) and a capacity of 7 gpm (28 L/min). The factory pressure settings are established at a flow rate of 4 gpm (15 L/min). Pressure at port 4 directly adds to the valve setting, allowing modulation between two positions without bistability. For optimal performance, the maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits rather than hydraulic operating limits. If pilot pressure surpasses the valve setting, consider the direct-acting version for lower pilot flow consumption. Additional specifications include a cavity size of T-21A, hex size of .78 in. (22.2 mm), and an installation torque range of 30\u201335 lbf ft (41\u201347 Nm). The adjustment screw has an internal hex size of .532 in. (4 mm), with locknut torque set between 80\u201390 lbf in. (9\u201310 Nm). The model weighs .60 lb (.30 kg) and includes a Viton seal kit for enhanced durability and performance in various applications.
Pilot-operated, 3-way directional cartridges (1 to 2 open, 3 blocked) are switching devices typically used in moderate flow circuits. They can be used by themselves or to actuate larger pilot operated directional cartridges or logic cartridges. The valve shifts when the pressure differential between port 1 and port 4 exceeds the setting.
- Port 4 can be blocked to prevent the valve from shifting.
- Port 3 can be used as a work port.
- Direct-acting and pilot-operated versions of these valves are interchangeable. They fit the same cavities and have the same flow paths.
- Pressure at port 4 is directly additive to the setting of the valve.
- This valve is not bistable; it is capable of modulating between the two positions shown.
- Maximum pressure at port 3 should be limited to 3000 psi (210 bar). This is due to fatigue strength limits not hydraulic operating limits.
- When pilot pressure exceeds the valve setting, pilot flow may be a consideration. See performance curves for pilot consumption vs. load pressure above the valve setting. If this is a problem, the direct acting version of this valve would be a solution.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
| Cavity | T-21A |
| Series | 1 |
| Capacity | 7 gpm28 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | 7 - 10 in³/min.0,11 - 0,16 L/min. |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 1 in³/min.@1000 psi15 cc/min.@70 bar |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Adjustment Screw Internal Hex Size | 5/32 in.4 mm |
| Locknut Hex Size | 9/16 in.15 mm |
| Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
| Model Weight | .60 lb0,30 kg |
| Seal kit - Cartridge | Viton: 990-021-006 |
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