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SUN HYDRAULICS
DPBPKEN


$153.98 USD
  • SUN HYDRAULICS
  • Material:DPBPKEN
  • Model:DPBP-KEN
  • 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 DPBPKEN (DPBPKEN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. It allows for the switching of flow between ports, with port 1 to 2 open and port 3 blocked, making it versatile for various hydraulic applications. This valve can function independently or be used to control larger pilot-operated directional or logic cartridges. The valve shifts when the pressure differential between port 1 and port 4 surpasses a predetermined setting, which can be adjusted with up to 5.5 clockwise turns. Port 4 can be blocked to prevent shifting, while port 3 serves as a work port and should not exceed a maximum pressure of 3000 psi due to fatigue strength limits. The DPBPKEN model features Sun\u2019s floating style construction that minimizes internal part binding caused by excessive installation torque or machining variations. It fits the T-21A cavity and operates with a capacity of up to 7 gpm (28 L/min). The maximum operating pressure is rated at 5000 psi (350 bar), and its control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min). The valve's leakage rate at standard viscosity is limited to one in\u00b3/min at 1000 psi (15 cc/min at 70 bar), ensuring efficient operation. This model is not bistable but modulates between two positions as needed. For users concerned about pilot flow consumption exceeding valve settings, the direct-acting version may be preferable due to its lower consumption rates. The DPBPKEN also includes an adjustment screw with an internal hex size of 5/32 inches (4 mm) and requires specific torque settings for installation and locknut adjustments, ensuring secure and reliable performance in hydraulic systems.

Pilot-operated, 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 4 can be blocked to prevent the valve from shifting.
  • Port 3 can be used as a work port.
  • 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.
  • Maximum pressure at port 3 should be limited to 3000 psi (210 bar). This is due to fatigue strength limits not hydraulic operating limits.
  • When pilot pressure exceeds the valve setting, pilot flow may be a consideration. See performance curves for pilot consumption vs. load pressure above the valve setting. If this is a problem, the direct acting version of this valve would be a solution.
  • 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
Control Pilot Flow 7 - 10 in³/min.0,11 - 0,16 L/min.
Maximum Valve Leakage at 110 SUS (24 cSt) 1 in³/min.@1000 psi15 cc/min.@70 bar
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: 990-021-006

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