SUN HYDRAULICS
DPBNKEV
$147.13 USD
- SUN HYDRAULICS
- Material:DPBNKEV
- Model:DPBN-KEV
- 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 DPBNKEV (DPBNKEV) is a normally closed, pilot-operated, 2-way directional cartridge valve designed for moderate flow circuits. It functions as a switching device and can be utilized independently or to actuate larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 surpasses its set threshold. Notably, port 4 can be blocked to prevent shifting, while port 3 serves as a work port. This valve model is interchangeable with direct-acting versions, fitting the same cavities and maintaining identical flow paths. The maximum pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength considerations rather than hydraulic limits. The valve's design allows it to modulate between two positions but does not support bistable operation. Incorporating Sun's floating style construction, the DPBNKEV minimizes internal part binding risks caused by excessive installation torque or machining variations in cavity/cartridge configurations. It features a T21A cavity with a series capacity of 7 gpm (28 L/min) and factory pressure settings established at 4 gpm (15 L/min). The maximum operating pressure reaches up to 5000 psi (350 bar), with control pilot flow ranging from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min). Valve leakage at maximum conditions is limited to 1 in\u00b3/min per 1000 psi (15 cc/min per 70 bar). Adjustments are made via an internal hex screw with specific torque requirements for both the screw and locknut components. The valve weighs approximately .60 lb (0.30 kg) and utilizes a Viton seal kit for optimal performance under varying conditions.
The Sun Hydraulics DPBNKEV (DPBNKEV) is a normally closed, pilot-operated, 2-way directional cartridge valve designed for moderate flow circuits. It functions as a switching device and can be utilized independently or to actuate larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 surpasses its set threshold. Notably, port 4 can be blocked to prevent shifting, while port 3 serves as a work port. This valve model is interchangeable with direct-acting versions, fitting the same cavities and maintaining identical flow paths. The maximum pressure at port 3 is limited to 3000 psi (210 bar) due to fatigue strength considerations rather than hydraulic limits. The valve's design allows it to modulate between two positions but does not support bistable operation. Incorporating Sun's floating style construction, the DPBNKEV minimizes internal part binding risks caused by excessive installation torque or machining variations in cavity/cartridge configurations. It features a T21A cavity with a series capacity of 7 gpm (28 L/min) and factory pressure settings established at 4 gpm (15 L/min). The maximum operating pressure reaches up to 5000 psi (350 bar), with control pilot flow ranging from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min). Valve leakage at maximum conditions is limited to 1 in\u00b3/min per 1000 psi (15 cc/min per 70 bar). Adjustments are made via an internal hex screw with specific torque requirements for both the screw and locknut components. The valve weighs approximately .60 lb (0.30 kg) and utilizes a Viton seal kit for optimal performance under varying conditions.
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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