SUN HYDRAULICS
DPBNKDN
$138.20 USD
- SUN HYDRAULICS
- Material:DPBNKDN
- Model:DPBN-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 DPBNKDN (DPBNKDN) is a normally closed, pilot-operated, 2-way directional cartridge valve designed for use in moderate flow circuits. This versatile valve can function independently or be utilized to actuate larger pilot-operated directional cartridges or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 surpasses a pre-set threshold. Port 4 can be blocked to inhibit the valve's movement, and port 3 serves as a work port. The DPBNKDN is interchangeable with direct-acting versions, fitting the same cavities and maintaining identical flow paths. This valve is capable of modulating between two positions but is not bistable. The maximum pressure at port 3 should not exceed 3000 psi due to fatigue strength limitations rather than hydraulic operating limits. The valve incorporates Sun's floating style construction, which minimizes the risk of internal parts binding caused by excessive installation torque or machining variations in the cavity/cartridge. The DPBNKDN fits into a T21A cavity and belongs to Series 1 with a capacity of 7 gpm (28 L/min). Factory pressure settings are established at 4 gpm (15 L/min), with a maximum operating pressure of up to 5000 psi (350 bar). Control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), while maximum valve leakage at 110 SUS (24 cSt) is limited to 1 in\u00b3/min at 1000 psi (15 cc/min at 70 bar). Adjustments are made via an internal hex screw, with clockwise turns increasing the setting up to a maximum of five turns. The model weighs approximately .60 lb (0.30 kg) and utilizes Viton seal kits for optimal performance and longevity.
The Sun Hydraulics DPBNKDN (DPBNKDN) is a normally closed, pilot-operated, 2-way directional cartridge valve designed for use in moderate flow circuits. This versatile valve can function independently or be utilized to actuate larger pilot-operated directional cartridges or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 surpasses a pre-set threshold. Port 4 can be blocked to inhibit the valve's movement, and port 3 serves as a work port. The DPBNKDN is interchangeable with direct-acting versions, fitting the same cavities and maintaining identical flow paths. This valve is capable of modulating between two positions but is not bistable. The maximum pressure at port 3 should not exceed 3000 psi due to fatigue strength limitations rather than hydraulic operating limits. The valve incorporates Sun's floating style construction, which minimizes the risk of internal parts binding caused by excessive installation torque or machining variations in the cavity/cartridge. The DPBNKDN fits into a T21A cavity and belongs to Series 1 with a capacity of 7 gpm (28 L/min). Factory pressure settings are established at 4 gpm (15 L/min), with a maximum operating pressure of up to 5000 psi (350 bar). Control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), while maximum valve leakage at 110 SUS (24 cSt) is limited to 1 in\u00b3/min at 1000 psi (15 cc/min at 70 bar). Adjustments are made via an internal hex screw, with clockwise turns increasing the setting up to a maximum of five turns. The model weighs approximately .60 lb (0.30 kg) and utilizes Viton seal kits for optimal performance and longevity.
Normally closed, pilot-operated, 2-way directional cartridges 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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