SUN HYDRAULICS
DRBOKWN
$149.71 USD
- SUN HYDRAULICS
- Material:DRBOKWN
- Model:DRBO-KWN
- 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 DRBOKWN (Material Number: DRBOKWN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. This versatile valve can function independently or be used to actuate larger pilot-operated directional cartridges or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 exceeds the predetermined setting. Port 3 serves as a work port with bidirectional flow capability between ports 2 and 3, while also supporting bidirectional flow between ports 1 and 2. Notably, the valve is not bistable but can modulate between its two positions. The DRBOKWN model features low internal leakage and minimal pilot flow consumption due to its direct-acting design. It also incorporates Sun\u2019s floating style construction to minimize internal part binding caused by excessive installation torque or machining variations in the cavity/cartridge interface. With a cavity size of T-21A and a series designation of 1, this valve has a capacity of up to 7 gpm (28 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The maximum allowable pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength considerations. Factory pressure settings are established at a flow rate of 4 gpm (15 L/min), with maximum valve leakage at 110 SUS (24 cSt) being only 2 in\u00b3/min (30 cc/min). The valve's installation requires specific torque settings, including an installation torque of 30 - 35 lbf ft (41 - 47 Nm), adjustment screw internal hex size of 5/32 inch (4 mm), and locknut torque of 80 - 90 lbf in. (9 -10 Nm). This robust component weighs .55 lb (.25 kg) and uses Viton seal kits for optimal performance.
The Sun Hydraulics DRBOKWN (Material Number: DRBOKWN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. This versatile valve can function independently or be used to actuate larger pilot-operated directional cartridges or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 exceeds the predetermined setting. Port 3 serves as a work port with bidirectional flow capability between ports 2 and 3, while also supporting bidirectional flow between ports 1 and 2. Notably, the valve is not bistable but can modulate between its two positions. The DRBOKWN model features low internal leakage and minimal pilot flow consumption due to its direct-acting design. It also incorporates Sun\u2019s floating style construction to minimize internal part binding caused by excessive installation torque or machining variations in the cavity/cartridge interface. With a cavity size of T-21A and a series designation of 1, this valve has a capacity of up to 7 gpm (28 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The maximum allowable pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength considerations. Factory pressure settings are established at a flow rate of 4 gpm (15 L/min), with maximum valve leakage at 110 SUS (24 cSt) being only 2 in\u00b3/min (30 cc/min). The valve's installation requires specific torque settings, including an installation torque of 30 - 35 lbf ft (41 - 47 Nm), adjustment screw internal hex size of 5/32 inch (4 mm), and locknut torque of 80 - 90 lbf in. (9 -10 Nm). This robust component weighs .55 lb (.25 kg) and uses Viton seal kits for optimal performance.
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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