SUN HYDRAULICS
DPBNLDN
$124.30 USD
- SUN HYDRAULICS
- Material:DPBNLDN
- Model:DPBN-LDN
- 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 DPBNLDN (DPBNLDN) is a normally closed, pilot-operated, 2-way directional cartridge valve designed for moderate flow circuits. It functions as a switching device and can be used independently or to actuate larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 exceeds its setting, with the option to block port 4 to prevent shifting. Port 3 serves as a work port with a maximum pressure limit of 3000 psi (210 bar) due to fatigue strength constraints. This valve features Sun's floating style construction, which minimizes internal binding risks from excessive torque or machining variations. The DPBNLDN fits into cavity T-21A and belongs to Series 1, offering a capacity of 7 gpm (28 L/min). It is factory-set at a pressure of 4 gpm (15 L/min), with a maximum operating pressure of 5000 psi (350 bar). The control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), and maximum valve leakage at 110 SUS (24 cSt) is rated at 1 in\u00b3/min per 1000 psi (15 cc/min per 70 bar). Adjustments are made via an internal hex screw with specifications for torque and size provided for precise installation and maintenance. This non-bistable valve can modulate between two positions, making it suitable for applications requiring reliable modulation without bistability. It accommodates both direct-acting and pilot-operated versions interchangeably within the same cavity and flow paths, ensuring versatility in various hydraulic systems. The DPBNLDN weighs approximately .60 lb (.30 kg) and comes with an available Viton seal kit for maintenance purposes.
The Sun Hydraulics DPBNLDN (DPBNLDN) is a normally closed, pilot-operated, 2-way directional cartridge valve designed for moderate flow circuits. It functions as a switching device and can be used independently or to actuate larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 exceeds its setting, with the option to block port 4 to prevent shifting. Port 3 serves as a work port with a maximum pressure limit of 3000 psi (210 bar) due to fatigue strength constraints. This valve features Sun's floating style construction, which minimizes internal binding risks from excessive torque or machining variations. The DPBNLDN fits into cavity T-21A and belongs to Series 1, offering a capacity of 7 gpm (28 L/min). It is factory-set at a pressure of 4 gpm (15 L/min), with a maximum operating pressure of 5000 psi (350 bar). The control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), and maximum valve leakage at 110 SUS (24 cSt) is rated at 1 in\u00b3/min per 1000 psi (15 cc/min per 70 bar). Adjustments are made via an internal hex screw with specifications for torque and size provided for precise installation and maintenance. This non-bistable valve can modulate between two positions, making it suitable for applications requiring reliable modulation without bistability. It accommodates both direct-acting and pilot-operated versions interchangeably within the same cavity and flow paths, ensuring versatility in various hydraulic systems. The DPBNLDN weighs approximately .60 lb (.30 kg) and comes with an available Viton seal kit for maintenance purposes.
Normally closed, pilot-operated, 2-way directional cartridges 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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