SUN HYDRAULICS
DRBROSN
$161.23 USD
- SUN HYDRAULICS
- Material:DRBROSN
- Model:DRBR-OSN
- 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 DRBROSN (DRBROSN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. This valve is typically employed in applications where it can function 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 surpasses the set threshold, with a maximum setting of 800 psi (55 bar). The valve supports bidirectional flow between ports 2 and 3, though the pressure at port 3 must be kept below 3000 psi (210 bar) due to fatigue strength limitations. With a capacity of up to 7 gpm (28 L/min) and a maximum operating pressure of 5000 psi (350 bar), this cartridge features low internal leakage and minimal pilot flow consumption thanks to its direct-acting design. Notably, it is not bistable and can modulate between two positions. The Sun floating style construction minimizes potential binding from excessive installation torque or cavity/cartridge machining variations. For installation, the valve requires a T21A cavity, with an installation torque range of 30-35 lbf ft (41-47 Nm). Its adjustment for increasing settings involves up to five clockwise turns, with a hex size of 7/8 in. (22.2 mm) for the valve and a locknut hex size of 9/16 in. (15 mm), which should be torqued between 80-90 lbf in. (9-10 Nm). The seal kit for this cartridge uses Viton material under part number 990021006.
The Sun Hydraulics DRBROSN (DRBROSN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. This valve is typically employed in applications where it can function 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 surpasses the set threshold, with a maximum setting of 800 psi (55 bar). The valve supports bidirectional flow between ports 2 and 3, though the pressure at port 3 must be kept below 3000 psi (210 bar) due to fatigue strength limitations. With a capacity of up to 7 gpm (28 L/min) and a maximum operating pressure of 5000 psi (350 bar), this cartridge features low internal leakage and minimal pilot flow consumption thanks to its direct-acting design. Notably, it is not bistable and can modulate between two positions. The Sun floating style construction minimizes potential binding from excessive installation torque or cavity/cartridge machining variations. For installation, the valve requires a T21A cavity, with an installation torque range of 30-35 lbf ft (41-47 Nm). Its adjustment for increasing settings involves up to five clockwise turns, with a hex size of 7/8 in. (22.2 mm) for the valve and a locknut hex size of 9/16 in. (15 mm), which should be torqued between 80-90 lbf in. (9-10 Nm). The seal kit for this cartridge uses Viton material under part number 990021006.
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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