SUN HYDRAULICS
DNDASCV628
$188.83 USD
- SUN HYDRAULICS
- Material:DNDASCV628
- Model:DNDA-SCV@628
- 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 DNDASCV628 (DNDASCV628) is a solenoid-operated, 4-way, 2-position cartridge valve featuring a direct-acting, balanced spool design with a soft shift capability. This soft shift feature is engineered to significantly reduce system shock during valve actuation, making it an ideal choice for applications where minimizing hydraulic shock is crucial. However, it should be noted that the performance limits are lower compared to standard cartridges and may not be suitable for applications requiring precise timing control. For such scenarios, Sun's electro-proportional valves might be more appropriate. The DNDASCV628 operates with a wet armature design, where the working fluid surrounds the armature and absorbs heat generated by the coil. This design enhances solenoid efficiency by providing high spool actuating force per watt expended, ensuring reliable valve shifting. The valve has a response time ranging from 150 ms to 300 ms, influenced by factors such as flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. This cartridge includes a push-type manual override control but does not support other manual control options like T or D with the soft shift feature; however, these can be installed in the field if needed. The solenoid tube assembly is fatigue-rated for service pressures up to 5000 psi (350 bar), and coil connector options offer protection ratings up to IP69K for enhanced environmental resilience. Additional specifications include a capacity of 4 gpm (15 L/min), maximum valve leakage of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), and compatibility with Viton seal kits. The DNDASCV628's floating style construction minimizes internal binding risks due to installation torque or cavity-cartridge machining variations.
The Sun Hydraulics DNDASCV628 (DNDASCV628) is a solenoid-operated, 4-way, 2-position cartridge valve featuring a direct-acting, balanced spool design with a soft shift capability. This soft shift feature is engineered to significantly reduce system shock during valve actuation, making it an ideal choice for applications where minimizing hydraulic shock is crucial. However, it should be noted that the performance limits are lower compared to standard cartridges and may not be suitable for applications requiring precise timing control. For such scenarios, Sun's electro-proportional valves might be more appropriate. The DNDASCV628 operates with a wet armature design, where the working fluid surrounds the armature and absorbs heat generated by the coil. This design enhances solenoid efficiency by providing high spool actuating force per watt expended, ensuring reliable valve shifting. The valve has a response time ranging from 150 ms to 300 ms, influenced by factors such as flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. This cartridge includes a push-type manual override control but does not support other manual control options like T or D with the soft shift feature; however, these can be installed in the field if needed. The solenoid tube assembly is fatigue-rated for service pressures up to 5000 psi (350 bar), and coil connector options offer protection ratings up to IP69K for enhanced environmental resilience. Additional specifications include a capacity of 4 gpm (15 L/min), maximum valve leakage of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), and compatibility with Viton seal kits. The DNDASCV628's floating style construction minimizes internal binding risks due to installation torque or cavity-cartridge machining variations.
This solenoid-operated 4-way, 2-position cartridge is a direct-acting, balanced spool directional valve with a soft shift feature. The soft shift feature greatly reduces system shock due to valve actuation.
- The soft shift cartridge is interchangeable with the standard cartridge, however, the performance limits are lower.
- The soft shift feature can greatly reduce shock due to valve actuation but should not be counted upon in applications where timing is critical. If you need accurate ramping or timing control, consider Sun's electro-proportional valves.
- The soft shift feature results in significant increase in response time over Sun's standard solenoid. Response time is dependant on flow, pressure, coil voltage, oil viscosity and ambient temperature. Typical response time ranges from 150 ms to 300 ms.
- For consistent soft shift performance, port 1 should be at a positive pressure.
- This valve includes a push-type manual override control. Other manual control options such as T or D, cannot be ordered with the soft shift control but can be installed easily in the field. See Twist/Lock Manual Override link above for details. Please note: Manual override functionality is not compatible with weatherized coils.
- The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
- This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes that will affect the function of the cartridge.
- The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details. Additional weatherized coils and kits are available for more complete environmental protection.
- 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-31A |
| Series | 1 |
| Capacity | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 10 in³/min.@3000 psi160 cc/min.@210 bar |
| Manual Override Force Requirement | 5 lbs/1000 psi @ Port 133 N/100 bar @ Port 1 |
| Manual Override Stroke | .10 in.2,5 mm |
| Solenoid Tube Diameter | .75 in.19 mm |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Model Weight | .60 lb0,30 kg |
| Seal kit - Cartridge | Viton: 990-431-006 |
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