SUN HYDRAULICS
DPBNLWV
$131.25 USD
- SUN HYDRAULICS
- Material:DPBNLWV
- Model:DPBN-LWV
- 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 DPBNLWV (DPBNLWV) is a normally closed, pilot-operated, 2-way directional cartridge valve designed for moderate flow circuits. This versatile valve can function independently or actuate larger pilot-operated directional or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 exceeds the set threshold, with port 4 capable of being blocked to prevent shifting and port 3 usable as a work port. The valve's design allows for interchangeability with direct-acting versions, fitting the same cavities and maintaining identical flow paths. Notably, pressure at port 4 directly adds to the valve's setting, allowing modulation between two positions rather than bistable operation. The DPBNLWV features a maximum operating pressure of 5000 psi (350 bar) and a capacity of 7 gpm (28 L/min). Factory pressure settings are established at 4 gpm (15 L/min), with control pilot flow ranging from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min). Maximum valve leakage at viscosity levels of 110 SUS (24 cSt) is limited to just 1 in\u00b3/min per 1000 psi (15 cc/min per 70 bar). The valve incorporates Sun\u2019s floating style construction, minimizing internal binding risks due to excessive installation torque or machining variations. Additional specifications include a cavity size of T-21A, series number of 1, and an adjustment mechanism allowing up to five clockwise turns to increase settings. The valve hex size measures at .78 inches (22.2 mm), with installation torque recommended between 30 to 35 lbf ft (41 to 47 Nm). For adjustments, an internal hex size of .156 inches (4 mm) is provided alongside a locknut hex size of .5625 inches (15 mm), which requires torque between 80 to 90 lbf in.
The Sun Hydraulics DPBNLWV (DPBNLWV) is a normally closed, pilot-operated, 2-way directional cartridge valve designed for moderate flow circuits. This versatile valve can function independently or actuate larger pilot-operated directional or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 exceeds the set threshold, with port 4 capable of being blocked to prevent shifting and port 3 usable as a work port. The valve's design allows for interchangeability with direct-acting versions, fitting the same cavities and maintaining identical flow paths. Notably, pressure at port 4 directly adds to the valve's setting, allowing modulation between two positions rather than bistable operation. The DPBNLWV features a maximum operating pressure of 5000 psi (350 bar) and a capacity of 7 gpm (28 L/min). Factory pressure settings are established at 4 gpm (15 L/min), with control pilot flow ranging from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min). Maximum valve leakage at viscosity levels of 110 SUS (24 cSt) is limited to just 1 in\u00b3/min per 1000 psi (15 cc/min per 70 bar). The valve incorporates Sun\u2019s floating style construction, minimizing internal binding risks due to excessive installation torque or machining variations. Additional specifications include a cavity size of T-21A, series number of 1, and an adjustment mechanism allowing up to five clockwise turns to increase settings. The valve hex size measures at .78 inches (22.2 mm), with installation torque recommended between 30 to 35 lbf ft (41 to 47 Nm). For adjustments, an internal hex size of .156 inches (4 mm) is provided alongside a locknut hex size of .5625 inches (15 mm), which requires torque between 80 to 90 lbf in.
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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