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SUN HYDRAULICS
DPCOKBN


$189.82 USD
  • SUN HYDRAULICS
  • Material:DPCOKBN
  • Model:DPCO-KBN
  • 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 DPCOKBN (DPCOKBN) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. It is versatile in its application, being suitable for use on its own or for actuating larger pilot-operated directional cartridges or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 exceeds a certain setting, although port 4 can be blocked to prevent this shift. Port 3 functions as a work port with a maximum pressure limit of 3000 psi due to fatigue strength constraints. This valve is not bistable but can modulate between two positions and features interchangeable direct-acting and pilot-operated versions that fit the same cavities with identical flow paths. The DPCOKBN incorporates Sun's floating style construction, minimizing the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations. It has a cavity size of T22A, belongs to series 2, and has a capacity of 15 gpm (60 L/min). The factory pressure settings are established at a flow rate of 4 gpm (15 L/min), with the maximum operating pressure reaching up to 5000 psi (350 bar). Control pilot flow ranges from 10 to 15 in\u00b3/min (0.16 to 0.25 L/min), and maximum valve leakage at 110 SUS (24 cSt) is limited to 1 in\u00b3/min at 1000 psi (15 cc/min at 70 bar). The adjustment screw requires five clockwise turns to increase the setting, with specific hex sizes designated for various components such as the valve hex size of 1-1/8 in. (28.6 mm) and locknut hex size of 9/16 in. (15 mm). Installation torque ranges between 45-50 lbf-ft (61-68 Nm), while locknut torque is set at 80-90 lbf-in (9-10 Nm). The model weighs approximately .60 lb (.30 kg) and uses Viton seal kits for cartridge sealing needs.

Pilot-operated, 3-way directional cartridges (1 blocked, 2 to 3 open) 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-22A
Series 2
Capacity 15 gpm60 L/min.
Factory Pressure Settings Established at 4 gpm15 L/min.
Maximum Operating Pressure 5000 psi350 bar
Control Pilot Flow 10 - 15 in³/min.0,16 - 0,25 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 1 1/8 in.28,6 mm
Valve Installation Torque 45 - 50 lbf ft61 - 68 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: 990-022-006

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