SUN HYDRAULICS
DPBOKDN
$152.10 USD
Tags:
- SUN HYDRAULICS
- Material:DPBOKDN
- Model:DPBO-KDN
- Summary:Cartridge
Quantity in stock: 0
***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 DPBOKDN (DPBOKDN) is a pilot-operated, 3-way directional cartridge designed for moderate flow circuits. It serves as a switching device with one blocked port and an open flow path between ports 2 and 3. This versatile valve can function independently or be used to actuate larger pilot-operated directional or logic cartridges. The valve shifts when the pressure differential between port 1 and port 4 surpasses its setting, and port 4 can be blocked to prevent shifting. Port 3 is often utilized as a work port. Both direct-acting and pilot-operated versions of these valves are interchangeable, fitting the same cavities with identical flow paths. Pressure at port 4 directly adds to the valve's setting, allowing modulation between two positions rather than bistable operation. The maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limitations, though this is not a hydraulic operating limit. If pilot pressure surpasses the valve setting, pilot flow may need consideration\u2014performance curves provide guidance on pilot consumption versus load pressure above the valve setting; if problematic, the direct-acting version could be an alternative solution. This model features Sun's floating style construction to reduce internal part binding from excessive installation torque or cavity/cartridge machining variations. It fits into T21A cavities and belongs to Series 1 with a capacity of up to 7 gpm (28 L/min). Factory pressure settings are established at a flow rate of 4 gpm (15 L/min), with maximum operating pressures reaching up to 5000 psi (350 bar). The control pilot flow ranges from 7-10 in\u00b3/min (0.11-0.16 L/min), with minimal leakage rates under specified conditions. Installation requires specific torque settings for both the valve itself and its locknut components, ensuring secure placement and optimal performance in hydraulic systems.
The Sun Hydraulics DPBOKDN (DPBOKDN) is a pilot-operated, 3-way directional cartridge designed for moderate flow circuits. It serves as a switching device with one blocked port and an open flow path between ports 2 and 3. This versatile valve can function independently or be used to actuate larger pilot-operated directional or logic cartridges. The valve shifts when the pressure differential between port 1 and port 4 surpasses its setting, and port 4 can be blocked to prevent shifting. Port 3 is often utilized as a work port. Both direct-acting and pilot-operated versions of these valves are interchangeable, fitting the same cavities with identical flow paths. Pressure at port 4 directly adds to the valve's setting, allowing modulation between two positions rather than bistable operation. The maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limitations, though this is not a hydraulic operating limit. If pilot pressure surpasses the valve setting, pilot flow may need consideration\u2014performance curves provide guidance on pilot consumption versus load pressure above the valve setting; if problematic, the direct-acting version could be an alternative solution. This model features Sun's floating style construction to reduce internal part binding from excessive installation torque or cavity/cartridge machining variations. It fits into T21A cavities and belongs to Series 1 with a capacity of up to 7 gpm (28 L/min). Factory pressure settings are established at a flow rate of 4 gpm (15 L/min), with maximum operating pressures reaching up to 5000 psi (350 bar). The control pilot flow ranges from 7-10 in\u00b3/min (0.11-0.16 L/min), with minimal leakage rates under specified conditions. Installation requires specific torque settings for both the valve itself and its locknut components, ensuring secure placement and optimal performance in hydraulic systems.
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-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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