SUN HYDRAULICS
DPBOKBN
$149.02 USD
- SUN HYDRAULICS
- Material:DPBOKBN
- Model:DPBO-KBN
- 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 DPBOKBN (DPBOKBN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or in conjunction with larger pilot-operated directional cartridges or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 exceeds the calibrated setting, with port 4 capable of being blocked to prevent shifting. Port 3 serves as a work port, and the valve is adaptable for both direct-acting and pilot-operated versions, fitting the same cavities and maintaining identical flow paths. The design incorporates Sun's floating style construction to reduce potential internal binding due to installation torque or machining variations. This model is capable of modulating between two positions and is not bistable. It supports a maximum operating pressure of 5000 psi (350 bar) with a capacity of 7 gpm (28 L/min). The factory pressure settings are established at 4 gpm (15 L/min), and it has a maximum valve leakage rate of 1 in\u00b3/min at 1000 psi (15 cc/min at 70 bar). For adjustment, it requires up to five clockwise turns to increase settings, featuring an adjustment screw with an internal hex size of 5/32 in (4 mm), and a locknut hex size of 9/16 in (15 mm), which should be torqued to 80-90 lbf-in (9-10 Nm). This valve is particularly suitable for applications where modulation between positions is required without bistable operation. It offers robust performance under high-pressure conditions while ensuring minimal internal leakage and ease of adjustment. The DPBOKBN model also includes Viton seals for enhanced durability under various operating conditions.
The Sun Hydraulics DPBOKBN (DPBOKBN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or in conjunction with larger pilot-operated directional cartridges or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 exceeds the calibrated setting, with port 4 capable of being blocked to prevent shifting. Port 3 serves as a work port, and the valve is adaptable for both direct-acting and pilot-operated versions, fitting the same cavities and maintaining identical flow paths. The design incorporates Sun's floating style construction to reduce potential internal binding due to installation torque or machining variations. This model is capable of modulating between two positions and is not bistable. It supports a maximum operating pressure of 5000 psi (350 bar) with a capacity of 7 gpm (28 L/min). The factory pressure settings are established at 4 gpm (15 L/min), and it has a maximum valve leakage rate of 1 in\u00b3/min at 1000 psi (15 cc/min at 70 bar). For adjustment, it requires up to five clockwise turns to increase settings, featuring an adjustment screw with an internal hex size of 5/32 in (4 mm), and a locknut hex size of 9/16 in (15 mm), which should be torqued to 80-90 lbf-in (9-10 Nm). This valve is particularly suitable for applications where modulation between positions is required without bistable operation. It offers robust performance under high-pressure conditions while ensuring minimal internal leakage and ease of adjustment. The DPBOKBN model also includes Viton seals for enhanced durability under various operating 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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