SUN HYDRAULICS
DNDASUN924N
$183.87 USD
- SUN HYDRAULICS
- Material:DNDASUN924N
- Model:DNDA-SUN@924N
- 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 DNDASUN924N (DNDASUN924N) 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, although it comes with reduced performance limits compared to standard cartridges. While beneficial for minimizing shock, the soft shift should not be relied upon in applications demanding precise timing; for such needs, Sun's electro-proportional valves are recommended. The response time of this valve varies between 150 ms and 300 ms depending on factors like flow, pressure, coil voltage, oil viscosity, and ambient temperature. For optimal performance, port 1 should maintain positive pressure. The valve includes a push-type manual override control; however, other manual control options like T or D can be field-installed but are incompatible with weatherized coils. The solenoid tube assembly is designed for fatigue resistance at pressures up to 5000 psi (350 bar) and features a wet armature design to enhance efficiency and reliability by allowing the working fluid to cool the armature. This design is particularly efficient in terms of spool actuating force per watt expended. The DNDASUN924N utilizes Sun\u2019s floating style construction to mitigate internal part binding risks due to installation torque or machining variations. With a cavity size of T-31A and series number 1, it has a capacity of 4 gpm (15 L/min) and an installation torque range of 30 - 35 lbf ft (41 - 47 Nm). The valve weighs approximately .60 lb (0.30 kg) and requires Viton seal kits for maintenance. Connector options offer ratings up to IP69K for enhanced environmental protection.
The Sun Hydraulics DNDASUN924N (DNDASUN924N) 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, although it comes with reduced performance limits compared to standard cartridges. While beneficial for minimizing shock, the soft shift should not be relied upon in applications demanding precise timing; for such needs, Sun's electro-proportional valves are recommended. The response time of this valve varies between 150 ms and 300 ms depending on factors like flow, pressure, coil voltage, oil viscosity, and ambient temperature. For optimal performance, port 1 should maintain positive pressure. The valve includes a push-type manual override control; however, other manual control options like T or D can be field-installed but are incompatible with weatherized coils. The solenoid tube assembly is designed for fatigue resistance at pressures up to 5000 psi (350 bar) and features a wet armature design to enhance efficiency and reliability by allowing the working fluid to cool the armature. This design is particularly efficient in terms of spool actuating force per watt expended. The DNDASUN924N utilizes Sun\u2019s floating style construction to mitigate internal part binding risks due to installation torque or machining variations. With a cavity size of T-31A and series number 1, it has a capacity of 4 gpm (15 L/min) and an installation torque range of 30 - 35 lbf ft (41 - 47 Nm). The valve weighs approximately .60 lb (0.30 kg) and requires Viton seal kits for maintenance. Connector options offer ratings up to IP69K for enhanced environmental protection.
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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