SUN HYDRAULICS
DPBOLWN
$135.12 USD
- SUN HYDRAULICS
- Material:DPBOLWN
- Model:DPBO-LWN
- 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 DPBOLWN (Material Number: DPBOLWN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile component allows for one port to be blocked while enabling flow between two others, making it suitable for various applications such as actuating larger pilot-operated directional or logic cartridges. The valve shifts based on the pressure differential between port 1 and port 4, with the option to block port 4 to prevent shifting. Port 3 can be utilized as a work port, and both direct-acting and pilot-operated versions are interchangeable within the same cavities and flow paths. The valve has a maximum operating pressure of 5000 psi (350 bar) and a capacity of 7 gpm (28 L/min). It features Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. The maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits, not hydraulic limits. When pilot pressure surpasses the valve setting, pilot flow consumption becomes significant; in such cases, opting for the direct-acting version might be advisable. Additional specifications include a control pilot flow range of 7\u201310 in\u00b3/min (0.11\u20130.16 L/min), a maximum valve leakage of 1 in\u00b3/min at 110 SUS (24 cSt), and an adjustment feature that requires approximately five clockwise turns to increase the setting. The valve's hex size is 7/8 inch (22.2 mm), with an installation torque range of 30\u201335 lbf\u00b7ft (41\u201347 Nm). It also includes an adjustment screw with an internal hex size of 5/32 inch (4 mm) and a locknut requiring a torque of 80\u201390 lbf\u00b7in (9\u201310 Nm). The model weighs approximately .60 lb (.30 kg) and utilizes a Viton seal kit for optimal performance.
The Sun Hydraulics DPBOLWN (Material Number: DPBOLWN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile component allows for one port to be blocked while enabling flow between two others, making it suitable for various applications such as actuating larger pilot-operated directional or logic cartridges. The valve shifts based on the pressure differential between port 1 and port 4, with the option to block port 4 to prevent shifting. Port 3 can be utilized as a work port, and both direct-acting and pilot-operated versions are interchangeable within the same cavities and flow paths. The valve has a maximum operating pressure of 5000 psi (350 bar) and a capacity of 7 gpm (28 L/min). It features Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. The maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits, not hydraulic limits. When pilot pressure surpasses the valve setting, pilot flow consumption becomes significant; in such cases, opting for the direct-acting version might be advisable. Additional specifications include a control pilot flow range of 7\u201310 in\u00b3/min (0.11\u20130.16 L/min), a maximum valve leakage of 1 in\u00b3/min at 110 SUS (24 cSt), and an adjustment feature that requires approximately five clockwise turns to increase the setting. The valve's hex size is 7/8 inch (22.2 mm), with an installation torque range of 30\u201335 lbf\u00b7ft (41\u201347 Nm). It also includes an adjustment screw with an internal hex size of 5/32 inch (4 mm) and a locknut requiring a torque of 80\u201390 lbf\u00b7in (9\u201310 Nm). The model weighs approximately .60 lb (.30 kg) and utilizes a Viton seal kit for optimal performance.
Pilot-operated, 3-way directional cartridges (1 blocked, 2 to 3 open) 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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