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SUN HYDRAULICS
DRBPLBN


$139.00 USD
  • SUN HYDRAULICS
  • Material:DRBPLBN
  • Model:DRBP-LBN
  • Summary:Cartridge

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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 DRBPLBN (DRBPLBN) is a direct-acting, 3-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or in conjunction with larger pilot-operated directional cartridges or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 surpasses a preset threshold. The valve offers a bidirectional flow path between ports 2 and 3, while port 3 can also serve as a work port. Featuring low internal leakage and pilot flow consumption due to its direct-acting design, this valve is interchangeable with its pilot-operated counterparts, fitting the same cavities and maintaining identical flow paths. The maximum allowable pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength considerations. The DRBPLBN incorporates Sun\u2019s floating style construction to reduce the risk of internal binding caused by excessive installation torque or machining variations in the cavity/cartridge. With a capacity of 7 gpm (28 L/min) and factory pressure settings established at 4 gpm (15 L/min), it supports a maximum operating pressure of up to 5000 psi (350 bar). Installation requires specific torque settings: valve installation torque ranges from 30 to 35 lbf ft (41 to 47 Nm), while locknut torque ranges from 80 to 90 lbf in (9 to 10 Nm). The valve features an adjustment screw with an internal hex size of \\(5/32\\) inch (4 mm) for fine-tuning, and its compact design weighs just .55 lb (.25 kg).

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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