SUN HYDRAULICS
DRBNOWN
$139.39 USD
- SUN HYDRAULICS
- Material:DRBNOWN
- Model:DRBN-OWN
- 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 DRBNOWN (DRBNOWN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or in conjunction with larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 surpasses a predetermined setting, with port 3 available for use as a work port. It features bidirectional flow between ports 2 and 3 and is characterized by low internal leakage and minimal pilot flow consumption due to its direct-acting design. Furthermore, this model is interchangeable with pilot-operated versions, sharing the same cavities and flow paths. The valve incorporates Sun\u2019s floating style construction to reduce the risk of internal parts binding from excessive installation torque or machining variations. Designed for a maximum operating pressure of 5000 psi (350 bar), it maintains a maximum valve leakage at 110 SUS (24 cSt) of 2 in/min (30 cc/min). It has a capacity of handling up to 7 gpm (28 L/min) with factory pressure settings established at 4 gpm (15 L/min). The maximum allowable pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength limits rather than hydraulic operating constraints. This model requires specific installation torque values and includes an adjustment screw for setting modifications. Weighing approximately .55 lb (.25 kg), it also offers compatibility with Viton seal kits for optimal performance in various applications where precise control and reliability are essential.
The Sun Hydraulics DRBNOWN (DRBNOWN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or in conjunction with larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 surpasses a predetermined setting, with port 3 available for use as a work port. It features bidirectional flow between ports 2 and 3 and is characterized by low internal leakage and minimal pilot flow consumption due to its direct-acting design. Furthermore, this model is interchangeable with pilot-operated versions, sharing the same cavities and flow paths. The valve incorporates Sun\u2019s floating style construction to reduce the risk of internal parts binding from excessive installation torque or machining variations. Designed for a maximum operating pressure of 5000 psi (350 bar), it maintains a maximum valve leakage at 110 SUS (24 cSt) of 2 in/min (30 cc/min). It has a capacity of handling up to 7 gpm (28 L/min) with factory pressure settings established at 4 gpm (15 L/min). The maximum allowable pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength limits rather than hydraulic operating constraints. This model requires specific installation torque values and includes an adjustment screw for setting modifications. Weighing approximately .55 lb (.25 kg), it also offers compatibility with Viton seal kits for optimal performance in various applications where precise control and reliability are essential.
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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