SUN HYDRAULICS
DNDASTV224N
$185.45 USD
- SUN HYDRAULICS
- Material:DNDASTV224N
- Model:DNDA-STV@224N
- 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 DNDASTV224N (Material Number: DNDASTV224N) 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 significantly reduces system shock during valve actuation, making it suitable for applications where shock minimization is critical, although it should not be used in scenarios requiring precise timing control. The valve is interchangeable with standard cartridges but operates within lower performance limits. It includes a push-type manual override control and is designed with a wet armature solenoid tube assembly rated for 5000 psi (350 bar) service pressure. The unique magnetic design of the solenoid ensures high efficiency and reliable valve shifting by providing substantial spool actuating force per watt expended. The typical response time ranges from 150 to 300 milliseconds, influenced by factors such as flow, pressure, and oil viscosity. For optimal performance, port 1 should maintain positive pressure. The manual override functionality requires a force of approximately 5 lbs/1000 psi at Port 1 and has a stroke of .10 inches (2.5 mm). The valve's hex size measures .78 inches (22.2 mm), and it should be installed with a torque of 30 to 35 lbf ft (41 to 47 Nm). With a capacity of up to 4 gpm (15 L/min) and maximum leakage at specified conditions being minimal, this cartridge employs Sun's floating style construction to prevent internal part binding due to installation variations. It supports various coil connector options with ratings up to IP69K for enhanced environmental protection and can be fitted with additional weatherized coils if needed.
The Sun Hydraulics DNDASTV224N (Material Number: DNDASTV224N) 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 significantly reduces system shock during valve actuation, making it suitable for applications where shock minimization is critical, although it should not be used in scenarios requiring precise timing control. The valve is interchangeable with standard cartridges but operates within lower performance limits. It includes a push-type manual override control and is designed with a wet armature solenoid tube assembly rated for 5000 psi (350 bar) service pressure. The unique magnetic design of the solenoid ensures high efficiency and reliable valve shifting by providing substantial spool actuating force per watt expended. The typical response time ranges from 150 to 300 milliseconds, influenced by factors such as flow, pressure, and oil viscosity. For optimal performance, port 1 should maintain positive pressure. The manual override functionality requires a force of approximately 5 lbs/1000 psi at Port 1 and has a stroke of .10 inches (2.5 mm). The valve's hex size measures .78 inches (22.2 mm), and it should be installed with a torque of 30 to 35 lbf ft (41 to 47 Nm). With a capacity of up to 4 gpm (15 L/min) and maximum leakage at specified conditions being minimal, this cartridge employs Sun's floating style construction to prevent internal part binding due to installation variations. It supports various coil connector options with ratings up to IP69K for enhanced environmental protection and can be fitted with additional weatherized coils if needed.
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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