SUN HYDRAULICS
DRBNKDN
$139.39 USD
- SUN HYDRAULICS
- Material:DRBNKDN
- Model:DRBN-KDN
- 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 DRBNKDN (DRBNKDN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for use in moderate flow circuits. This versatile valve can function independently or serve to actuate larger pilot-operated directional cartridges or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 surpasses the set threshold, with port 3 optionally used as a work port. The flow path between port 2 and port 3 is bidirectional, ensuring flexibility in circuit design. Thanks to its direct-acting design, the DRBNKDN offers low internal leakage and minimal pilot flow consumption. Notably, it shares cavity compatibility and flow paths with pilot-operated versions, allowing for interchangeability. The valve supports a maximum operating pressure of 5000 psi (350 bar) and should limit maximum pressure at port 3 to 3000 psi (210 bar) due to fatigue strength constraints rather than hydraulic limits. Its floating style construction minimizes risks of internal component binding from excessive installation torque or machining variations. With a capacity of 7 gpm (28 L/min) and factory pressure settings established at 4 gpm (15 L/min), this cartridge is suitable for various applications requiring reliable directional control. Additional specifications include a valve hex size of .78 inches (22.2 mm), installation torque range of 30-35 lbf ft (41-47 Nm), adjustment screw internal hex size of .532 inches (4 mm), locknut hex size of .916 inches (15 mm), and locknut torque range of 80-90 lbf in (9-10 Nm). The model weighs approximately .55 lb (.25 kg) and includes a Viton seal kit option under part number 990021006.
The Sun Hydraulics DRBNKDN (DRBNKDN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for use in moderate flow circuits. This versatile valve can function independently or serve to actuate larger pilot-operated directional cartridges or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 surpasses the set threshold, with port 3 optionally used as a work port. The flow path between port 2 and port 3 is bidirectional, ensuring flexibility in circuit design. Thanks to its direct-acting design, the DRBNKDN offers low internal leakage and minimal pilot flow consumption. Notably, it shares cavity compatibility and flow paths with pilot-operated versions, allowing for interchangeability. The valve supports a maximum operating pressure of 5000 psi (350 bar) and should limit maximum pressure at port 3 to 3000 psi (210 bar) due to fatigue strength constraints rather than hydraulic limits. Its floating style construction minimizes risks of internal component binding from excessive installation torque or machining variations. With a capacity of 7 gpm (28 L/min) and factory pressure settings established at 4 gpm (15 L/min), this cartridge is suitable for various applications requiring reliable directional control. Additional specifications include a valve hex size of .78 inches (22.2 mm), installation torque range of 30-35 lbf ft (41-47 Nm), adjustment screw internal hex size of .532 inches (4 mm), locknut hex size of .916 inches (15 mm), and locknut torque range of 80-90 lbf in (9-10 Nm). The model weighs approximately .55 lb (.25 kg) and includes a Viton seal kit option under part number 990021006.
Normally closed, direct-acting, 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 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.
- 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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