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SUN HYDRAULICS
DRBBOSN


$115.86 USD
  • SUN HYDRAULICS
  • Material:DRBBOSN
  • Model:DRBB-OSN
  • Summary:Cartridge

Quantity in stock: 0

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***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 DRBBOSN (DRBBOSN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or trigger larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 3 surpasses the preset threshold. Notably, pressure at port 3 adds directly to this setting, which may affect its use as a work port in certain circuits; in such cases, a 4-port version might be more suitable. The direct-acting design ensures low internal leakage and minimal pilot flow consumption. Interchangeability with pilot-operated versions allows these valves to fit into the same cavities and maintain consistent flow paths. The DRBBOSN features Sun's floating style construction to reduce the risk of internal binding due to excessive installation torque or machining variations. It is capable of modulating between two positions rather than being bistable. The valve fits into a T-11A cavity and belongs to Series 1 with a capacity of 7 gpm (28 L/min). Factory pressure settings are established at 4 gpm (15 L/min), with a maximum operating pressure of 5000 psi (350 bar). Leakage is limited to 2 in\u00b3/min (30 cc/min) at 110 SUS (24 cSt). Adjustments can be made via an internal hex screw, with five clockwise turns increasing the setting. Installation requires a torque of 30-35 lbf-ft (41-47 Nm) using a hex size of 7/8 in. (22.2 mm), while the locknut requires an additional torque of 80-90 lbf-in. (9-10 Nm). The model weighs .60 lb (.30 kg) and utilizes Viton seal kits for maintenance and longevity.

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 3 exceeds the setting.

  • Pressure at port 3 is directly additive to the setting of the valve. Because of this, port 3 may not be useable as a work port in your circuit. If this is a consideration, the 4 port version of this valve may be a solution.
  • 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.
  • 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-11A
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 .60 lb0,30 kg
Seal kit - Cartridge Viton: 990-011-006

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