SUN HYDRAULICS
DRBOKBN
$149.71 USD
- SUN HYDRAULICS
- Material:DRBOKBN
- Model:DRBO-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 DRBOKBN (DRBOKBN) is a direct-acting, 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. It operates by shifting when the pressure differential between port 1 and port 4 surpasses the pre-set threshold, while port 3 serves as a work port with bidirectional flow between ports 2 and 3. The direct-acting design ensures low internal leakage and minimal pilot flow consumption, making it efficient and reliable. Notably, the DRBOKBN is interchangeable with its pilot-operated counterparts, sharing cavity compatibility and flow paths. This valve is capable of modulating between two positions without being bistable, offering flexibility in various applications. It allows bidirectional flow between ports 1 and 2 and can withstand a maximum pressure of up to 5000 psi (350 bar), though the pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limitations. The valve incorporates Sun's floating style construction to minimize risks of internal binding from excessive installation torque or machining variations. Key specifications include a capacity of 7 gpm (28 L/min), factory pressure settings established at 4 gpm (15 L/min), and a maximum valve leakage rate of 2 in\u00b3/min (30 cc/min) at 110 SUS (24 cSt). The DRBOKBN features an adjustment mechanism that requires approximately five clockwise turns to increase setting, with specific torque requirements for installation and adjustment components. Weighing in at .55 lb (.25 kg), this model is equipped with Viton seals for reliable performance under various conditions.
The Sun Hydraulics DRBOKBN (DRBOKBN) is a direct-acting, 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. It operates by shifting when the pressure differential between port 1 and port 4 surpasses the pre-set threshold, while port 3 serves as a work port with bidirectional flow between ports 2 and 3. The direct-acting design ensures low internal leakage and minimal pilot flow consumption, making it efficient and reliable. Notably, the DRBOKBN is interchangeable with its pilot-operated counterparts, sharing cavity compatibility and flow paths. This valve is capable of modulating between two positions without being bistable, offering flexibility in various applications. It allows bidirectional flow between ports 1 and 2 and can withstand a maximum pressure of up to 5000 psi (350 bar), though the pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limitations. The valve incorporates Sun's floating style construction to minimize risks of internal binding from excessive installation torque or machining variations. Key specifications include a capacity of 7 gpm (28 L/min), factory pressure settings established at 4 gpm (15 L/min), and a maximum valve leakage rate of 2 in\u00b3/min (30 cc/min) at 110 SUS (24 cSt). The DRBOKBN features an adjustment mechanism that requires approximately five clockwise turns to increase setting, with specific torque requirements for installation and adjustment components. Weighing in at .55 lb (.25 kg), this model is equipped with Viton seals for reliable performance under various conditions.
Direct-acting, 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 3 can be used as a work port.
- The flow path between port 2 and port 3 is bidirectional.
- Because of their direct-acting design, these cartridges feature low internal leakage and low pilot flow consumption.
- 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.
- The flow path between port 1 and port 2 is bidirectional.
- Maximum pressure at port 3 should be limited to 3000 psi (210 bar). This is due to fatigue strength limits not hydraulic operating limits.
- 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 |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.30 cc/min. |
| 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 | .55 lb0,25 kg |
| Seal kit - Cartridge | Viton: 990-021-006 |
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