SUN HYDRAULICS
DNDASDVHN24AA
$1,389.92 USD
- SUN HYDRAULICS
- Material:DNDASDVHN24AA
- Model:DNDA-SDV-HN@24AA
- 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 DNDASDVHN24AA (DNDASDVHN24AA) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control with a soft shift feature. This feature significantly reduces system shock during valve actuation, making it ideal for applications where minimizing hydraulic shock is crucial. However, it should not be relied upon for precise timing control; Sun's electro-proportional valves are recommended for such scenarios. The soft shift mechanism results in increased response times compared to standard solenoids, typically ranging from 150 ms to 300 ms depending on factors like flow, pressure, and coil voltage. For optimal performance, port 1 should maintain positive pressure. The valve includes a push-type manual override control and supports easy installation of other manual controls in the field, although these are not compatible with weatherized coils. The solenoid tube assembly is rated for fatigue at 5000 psi (350 bar), utilizing a wet armature design that can impact cartridge function if the coil is energized over extended periods with certain fluids. Its high-efficiency solenoid design ensures reliable valve shifting with minimal power consumption. This model features Sun's floating style construction to prevent internal binding from excessive torque or machining variations. With a capacity of 4 gpm (15 L/min) and maximum operating pressure of 5000 psi (350 bar), it offers robust performance within its specified limits. The valve's compact design includes a hex size of .78 inches (22.2 mm) and requires installation torque between 30 to 35 lbf ft (41 to 47 Nm). It weighs approximately .60 lb (.30 kg) and uses Viton seal kits for maintenance needs.
The Sun Hydraulics DNDASDVHN24AA (DNDASDVHN24AA) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control with a soft shift feature. This feature significantly reduces system shock during valve actuation, making it ideal for applications where minimizing hydraulic shock is crucial. However, it should not be relied upon for precise timing control; Sun's electro-proportional valves are recommended for such scenarios. The soft shift mechanism results in increased response times compared to standard solenoids, typically ranging from 150 ms to 300 ms depending on factors like flow, pressure, and coil voltage. For optimal performance, port 1 should maintain positive pressure. The valve includes a push-type manual override control and supports easy installation of other manual controls in the field, although these are not compatible with weatherized coils. The solenoid tube assembly is rated for fatigue at 5000 psi (350 bar), utilizing a wet armature design that can impact cartridge function if the coil is energized over extended periods with certain fluids. Its high-efficiency solenoid design ensures reliable valve shifting with minimal power consumption. This model features Sun's floating style construction to prevent internal binding from excessive torque or machining variations. With a capacity of 4 gpm (15 L/min) and maximum operating pressure of 5000 psi (350 bar), it offers robust performance within its specified limits. The valve's compact design includes a hex size of .78 inches (22.2 mm) and requires installation torque between 30 to 35 lbf ft (41 to 47 Nm). It weighs approximately .60 lb (.30 kg) and uses Viton seal kits for maintenance needs.
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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