SUN HYDRAULICS
DPBOLBN
$136.10 USD
Tags:
- SUN HYDRAULICS
- Material:DPBOLBN
- Model:DPBO-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 DPBOLBN (DPBOLBN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. It functions as a switching device with one blocked port and an open path from port 2 to port 3, making it versatile for use in various hydraulic applications. This valve can operate independently or be used to actuate larger pilot-operated directional or logic cartridges. It shifts when the pressure differential between port 1 and port 4 exceeds the pre-set threshold, with the option to block port 4 to prevent shifting. Port 3 serves as a work port, and both direct-acting and pilot-operated versions of these valves are interchangeable, fitting the same cavities and following identical flow paths. The DPBOLBN features a maximum operating pressure of 5000 psi (350 bar) and has a capacity of handling up to 7 gpm (28 L/min). The valve incorporates Sun's floating style construction, minimizing internal binding risks due to excessive installation torque or machining variations. It is not bistable but can modulate between two positions shown in its configuration. For optimal performance, maximum pressure at port 3 should remain below 3000 psi (210 bar) due to fatigue strength limitations. The valve's control pilot flow ranges from 7 to 10 cubic inches per minute (0.11 to 0.16 L/min), with minimal leakage at specified viscosities. Adjustments can be made using an internal hex screw, with specific torque requirements for installation and locknuts ensuring secure settings. The DPBOLBN weighs approximately .60 lb (0.30 kg) and uses Viton seal kits for durability in various environmental conditions.
The Sun Hydraulics DPBOLBN (DPBOLBN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. It functions as a switching device with one blocked port and an open path from port 2 to port 3, making it versatile for use in various hydraulic applications. This valve can operate independently or be used to actuate larger pilot-operated directional or logic cartridges. It shifts when the pressure differential between port 1 and port 4 exceeds the pre-set threshold, with the option to block port 4 to prevent shifting. Port 3 serves as a work port, and both direct-acting and pilot-operated versions of these valves are interchangeable, fitting the same cavities and following identical flow paths. The DPBOLBN features a maximum operating pressure of 5000 psi (350 bar) and has a capacity of handling up to 7 gpm (28 L/min). The valve incorporates Sun's floating style construction, minimizing internal binding risks due to excessive installation torque or machining variations. It is not bistable but can modulate between two positions shown in its configuration. For optimal performance, maximum pressure at port 3 should remain below 3000 psi (210 bar) due to fatigue strength limitations. The valve's control pilot flow ranges from 7 to 10 cubic inches per minute (0.11 to 0.16 L/min), with minimal leakage at specified viscosities. Adjustments can be made using an internal hex screw, with specific torque requirements for installation and locknuts ensuring secure settings. The DPBOLBN weighs approximately .60 lb (0.30 kg) and uses Viton seal kits for durability in various environmental conditions.
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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