SUN HYDRAULICS
DRBNLWN
$123.51 USD
- SUN HYDRAULICS
- Material:DRBNLWN
- Model:DRBN-LWN
- 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 DRBNLWN (Material Number: DRBNLWN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for moderate flow circuits. It can function independently or to actuate larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 surpasses the preset threshold. Port 3 can serve as a work port, and the flow path between ports 2 and 3 is bidirectional. Its direct-acting design ensures low internal leakage and minimal pilot flow consumption, making it efficient in various applications. The DRBNLWN model features interchangeable direct-acting and pilot-operated versions that fit identical cavities with similar flow paths. The pressure at port 4 directly adds to the valve's setting, allowing for modulation between two positions rather than bistable operation. The maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits. This valve incorporates Sun's floating style construction to minimize internal part binding caused by excessive installation torque or cavity/cartridge machining variations. Key specifications include a T21A cavity, Series 1 classification, with a capacity of 7 gpm (28 L/min) and factory pressure settings established at 4 gpm (15 L/min). The maximum operating pressure is rated at 5000 psi (350 bar), with a maximum valve leakage of 2 in\u00b3/min (30 cc/min) at 110 SUS (24 cSt). Adjustments are made by turning clockwise up to five times to increase the setting, with specific torque requirements outlined for installation and locknut adjustments. The model weighs approximately .55 lbs (.25 kg) and uses Viton seal kits for maintenance needs.
The Sun Hydraulics DRBNLWN (Material Number: DRBNLWN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for moderate flow circuits. It can function independently or to actuate larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 surpasses the preset threshold. Port 3 can serve as a work port, and the flow path between ports 2 and 3 is bidirectional. Its direct-acting design ensures low internal leakage and minimal pilot flow consumption, making it efficient in various applications. The DRBNLWN model features interchangeable direct-acting and pilot-operated versions that fit identical cavities with similar flow paths. The pressure at port 4 directly adds to the valve's setting, allowing for modulation between two positions rather than bistable operation. The maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits. This valve incorporates Sun's floating style construction to minimize internal part binding caused by excessive installation torque or cavity/cartridge machining variations. Key specifications include a T21A cavity, Series 1 classification, with a capacity of 7 gpm (28 L/min) and factory pressure settings established at 4 gpm (15 L/min). The maximum operating pressure is rated at 5000 psi (350 bar), with a maximum valve leakage of 2 in\u00b3/min (30 cc/min) at 110 SUS (24 cSt). Adjustments are made by turning clockwise up to five times to increase the setting, with specific torque requirements outlined for installation and locknut adjustments. The model weighs approximately .55 lbs (.25 kg) and uses Viton seal kits for maintenance needs.
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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