SUN HYDRAULICS
DRBPOSN
$154.88 USD
- SUN HYDRAULICS
- Material:DRBPOSN
- Model:DRBP-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 DRBPOSN (DRBPOSN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. It features a configuration where ports 1 and 2 are open, and port 3 is blocked, allowing it to be used 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 exceeds its set threshold. Port 3 functions as a work port with bidirectional flow between ports 2 and 3, while the flow path between ports 1 and 2 is also bidirectional. This cartridge valve is noted for its low internal leakage and pilot flow consumption due to its direct-acting design. It can interchangeably fit cavities designed for both direct-acting and pilot-operated versions, maintaining consistent flow paths. The maximum pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength constraints rather than hydraulic operational limits. The valve incorporates Sun's floating style construction, which minimizes the risk of internal parts binding from excessive installation torque or cavity/cartridge machining variations. The T21A cavity accommodates this Series 1 valve with a capacity of up to 7 gpm (28 L/min), with factory pressure settings established at a flow rate of 4 gpm (15 L/min). The maximum operating pressure reaches up to 5000 psi (350 bar). For adjustment, the valve requires approximately five clockwise turns to increase the setting, using an internal hex size of 5/32 in. (4 mm) for the adjustment screw. The locknut has a hex size of 9/16 in. (15 mm) with a torque range of 80\u201390 lbf-in (9\u201310 Nm). Overall, this model weighs about .55 lb (.25 kg) and includes a Viton seal kit designated as part number: 990021006.
The Sun Hydraulics DRBPOSN (DRBPOSN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. It features a configuration where ports 1 and 2 are open, and port 3 is blocked, allowing it to be used 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 exceeds its set threshold. Port 3 functions as a work port with bidirectional flow between ports 2 and 3, while the flow path between ports 1 and 2 is also bidirectional. This cartridge valve is noted for its low internal leakage and pilot flow consumption due to its direct-acting design. It can interchangeably fit cavities designed for both direct-acting and pilot-operated versions, maintaining consistent flow paths. The maximum pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength constraints rather than hydraulic operational limits. The valve incorporates Sun's floating style construction, which minimizes the risk of internal parts binding from excessive installation torque or cavity/cartridge machining variations. The T21A cavity accommodates this Series 1 valve with a capacity of up to 7 gpm (28 L/min), with factory pressure settings established at a flow rate of 4 gpm (15 L/min). The maximum operating pressure reaches up to 5000 psi (350 bar). For adjustment, the valve requires approximately five clockwise turns to increase the setting, using an internal hex size of 5/32 in. (4 mm) for the adjustment screw. The locknut has a hex size of 9/16 in. (15 mm) with a torque range of 80\u201390 lbf-in (9\u201310 Nm). Overall, this model weighs about .55 lb (.25 kg) and includes a Viton seal kit designated as part number: 990021006.
Direct-acting, 3-way directional cartridges (1 to 2 open, 3 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.
- 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 |
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