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SUN HYDRAULICS
DPBPCAV


$154.98 USD
  • SUN HYDRAULICS
  • Material:DPBPCAV
  • Model:DPBP-CAV
  • 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 DPBPCAV (DPBPCAV) is a pilot-operated, 3-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or facilitate the operation of larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 exceeds a predetermined setting, with the option to block port 4 to prevent shifting. Port 3 serves as a work port and should be limited to a maximum pressure of 3000 psi due to fatigue strength considerations. The valve's design allows for modulation between two positions, rather than bistable operation. It features Sun's floating style construction, reducing the risk of internal part binding caused by excessive installation torque or machining variations. This model fits into cavity T-21A and belongs to Series 1 with a capacity of handling up to 7 gallons per minute (28 L/min). Factory pressure settings are established at a flow rate of 4 gpm (15 L/min), while the maximum operating pressure reaches up to 5000 psi (350 bar). Control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), and maximum valve leakage at standard viscosity is limited to 1 in\u00b3/min at 1000 psi (15 cc/min at 70 bar). The adjustment mechanism allows for fine-tuning with up to five clockwise turns increasing the setting, supported by specific hex sizes for both the valve and adjustment screw. Installation requires a torque of between 30 and 35 lbf\u00b7ft (41 to 47 Nm), while locknut torque is set between 80 and 90 lbf\u00b7in (9 to 10 Nm). Weighing approximately .60 lb (.30 kg), this model incorporates Viton seals for reliable performance under varying conditions.

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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