SUN HYDRAULICS
DRBRKNN
$158.25 USD
- SUN HYDRAULICS
- Material:DRBRKNN
- Model:DRBR-KNN
- 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 DRBRKNN (Material Number: DRBRKNN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. It features a configuration where ports 3 to 4 are open and port 2 is blocked. This valve can be used independently or to actuate larger pilot-operated directional or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 exceeds the set threshold, with a maximum setting of 800 psi (55 bar). The valve's maximum operating pressure is up to 5000 psi (350 bar), while the pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits. The flow path between ports 2 and 3 is bidirectional, which adds versatility in application. With its direct-acting design, the valve ensures low internal leakage and minimal pilot flow consumption. The DRBRKNN model is not bistable and can modulate between two positions as needed. It incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations in the cavity/cartridge interface. The cartridge fits into a T21A cavity and belongs to Series 1, with a capacity of handling up to 7 gpm (28 L/min). Installation requires specific torque settings: the valve hex size is 7/8 inch (22.2 mm) with an installation torque of between 30 - 35 lbf-ft (41 -47 Nm), while the locknut hex size is 9/16 inch (15 mm) with a torque requirement of between 80 -90 lbf-in (9 -10 Nm). The valve comes with Viton seal kits for durability in various environments.
The Sun Hydraulics DRBRKNN (Material Number: DRBRKNN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. It features a configuration where ports 3 to 4 are open and port 2 is blocked. This valve can be used independently or to actuate larger pilot-operated directional or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 exceeds the set threshold, with a maximum setting of 800 psi (55 bar). The valve's maximum operating pressure is up to 5000 psi (350 bar), while the pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits. The flow path between ports 2 and 3 is bidirectional, which adds versatility in application. With its direct-acting design, the valve ensures low internal leakage and minimal pilot flow consumption. The DRBRKNN model is not bistable and can modulate between two positions as needed. It incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations in the cavity/cartridge interface. The cartridge fits into a T21A cavity and belongs to Series 1, with a capacity of handling up to 7 gpm (28 L/min). Installation requires specific torque settings: the valve hex size is 7/8 inch (22.2 mm) with an installation torque of between 30 - 35 lbf-ft (41 -47 Nm), while the locknut hex size is 9/16 inch (15 mm) with a torque requirement of between 80 -90 lbf-in (9 -10 Nm). The valve comes with Viton seal kits for durability in various environments.
Direct-acting, 3-way directional cartridges (3 to 4 open, 2 blocked) 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.
- Note: 800 psi (55 bar) is the highest setting possible with this valve.
- Maximum pressure at port 3 should be limited to 3000 psi (210 bar). This is due to fatigue strength limits not hydraulic operating limits.
- 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.
- This valve is not bistable; it is capable of modulating between the two positions shown.
- 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. |
| 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 |
| Locknut Hex Size | 9/16 in.15 mm |
| Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
| Seal kit - Cartridge | Viton: 990-021-006 |
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