SUN HYDRAULICS
DRBOCBN
$143.76 USD
- SUN HYDRAULICS
- Material:DRBOCBN
- Model:DRBO-CBN
- 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 DRBOCBN (DRBOCBN) is a direct-acting, 3-way directional cartridge valve designed for use in moderate flow circuits. This valve is versatile and can be used independently or 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 set threshold. Port 3 serves as a work port, with bidirectional flow paths between ports 2 and 3, as well as ports 1 and 2. The DRBOCBN features low internal leakage and minimal pilot flow consumption due to its direct-acting design. It is interchangeable with pilot-operated versions, fitting the same cavities and maintaining consistent flow paths. This valve incorporates Sun's floating style construction, which minimizes the risk of internal parts binding from excessive installation torque or machining variations in cavity/cartridge setups. The maximum operating pressure of the DRBOCBN is rated at 5000 psi (350 bar), while pressure at port 4 directly adds to the valve's setting. The maximum allowable pressure at port 3 should be limited to 3000 psi (210 bar) due to fatigue strength considerations. Key specifications include a T21A cavity, a capacity of 7 gpm (28 L/min), and factory pressure settings established at a flow rate of 4 gpm (15 L/min). The valve has a maximum leakage rate of 2 in\u00b3/min (30 cc/min) at an oil viscosity of 110 SUS (24 cSt). Adjustments are made with an internal hex screw, requiring up to five turns clockwise to increase settings. The DRBOCBN is not bistable; it modulates between two positions rather than maintaining one fixed state. This robust design makes it suitable for applications requiring reliable modulation under varying pressures without significant pilot flow increases.
The Sun Hydraulics DRBOCBN (DRBOCBN) is a direct-acting, 3-way directional cartridge valve designed for use in moderate flow circuits. This valve is versatile and can be used independently or 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 set threshold. Port 3 serves as a work port, with bidirectional flow paths between ports 2 and 3, as well as ports 1 and 2. The DRBOCBN features low internal leakage and minimal pilot flow consumption due to its direct-acting design. It is interchangeable with pilot-operated versions, fitting the same cavities and maintaining consistent flow paths. This valve incorporates Sun's floating style construction, which minimizes the risk of internal parts binding from excessive installation torque or machining variations in cavity/cartridge setups. The maximum operating pressure of the DRBOCBN is rated at 5000 psi (350 bar), while pressure at port 4 directly adds to the valve's setting. The maximum allowable pressure at port 3 should be limited to 3000 psi (210 bar) due to fatigue strength considerations. Key specifications include a T21A cavity, a capacity of 7 gpm (28 L/min), and factory pressure settings established at a flow rate of 4 gpm (15 L/min). The valve has a maximum leakage rate of 2 in\u00b3/min (30 cc/min) at an oil viscosity of 110 SUS (24 cSt). Adjustments are made with an internal hex screw, requiring up to five turns clockwise to increase settings. The DRBOCBN is not bistable; it modulates between two positions rather than maintaining one fixed state. This robust design makes it suitable for applications requiring reliable modulation under varying pressures without significant pilot flow increases.
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 |
Show FAQ