SUN HYDRAULICS
DNDASCV297
$222.79 USD
- SUN HYDRAULICS
- Material:DNDASCV297
- Model:DNDA-SCV@297
- 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 DNDASCV297 (DNDASCV297) is a solenoid-operated 4-way, 2-position cartridge valve designed with a soft shift feature to minimize system shock during valve actuation. This direct-acting, balanced spool directional valve is compatible with standard cartridges, though it operates at lower performance limits due to its soft shift capability. The soft shift significantly increases response time, ranging from 150 ms to 300 ms based on flow, pressure, coil voltage, oil viscosity, and ambient temperature. It is not suitable for applications requiring precise timing; for such needs, Sun's electro-proportional valves are recommended. For optimal performance of the soft shift feature, port 1 should maintain positive pressure. The DNDASCV297 includes a push-type manual override control; however, this functionality is incompatible with weatherized coils and other manual control options like T or D must be installed separately if needed. The solenoid tube assembly is fatigue-rated for service up to 5000 psi (350 bar), incorporating a wet armature design that exposes the working fluid to coil-generated heat\u2014an important consideration for fluids prone to breakdown at high temperatures. This high-efficiency solenoid ensures reliable valve shifting through its unique magnetic design that delivers substantial spool actuating force per watt expended. The valve offers various coil connector options with ratings up to IP69K for enhanced environmental protection. Additionally, it uses Sun's floating style construction to reduce the risk of internal parts binding due to excessive installation torque or machining variations in cavity-cartridge interfaces. With a capacity of 4 gpm (15 L/min) and maximum leakage of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), this cartridge valve provides robust performance in demanding hydraulic applications.
The Sun Hydraulics DNDASCV297 (DNDASCV297) is a solenoid-operated 4-way, 2-position cartridge valve designed with a soft shift feature to minimize system shock during valve actuation. This direct-acting, balanced spool directional valve is compatible with standard cartridges, though it operates at lower performance limits due to its soft shift capability. The soft shift significantly increases response time, ranging from 150 ms to 300 ms based on flow, pressure, coil voltage, oil viscosity, and ambient temperature. It is not suitable for applications requiring precise timing; for such needs, Sun's electro-proportional valves are recommended. For optimal performance of the soft shift feature, port 1 should maintain positive pressure. The DNDASCV297 includes a push-type manual override control; however, this functionality is incompatible with weatherized coils and other manual control options like T or D must be installed separately if needed. The solenoid tube assembly is fatigue-rated for service up to 5000 psi (350 bar), incorporating a wet armature design that exposes the working fluid to coil-generated heat\u2014an important consideration for fluids prone to breakdown at high temperatures. This high-efficiency solenoid ensures reliable valve shifting through its unique magnetic design that delivers substantial spool actuating force per watt expended. The valve offers various coil connector options with ratings up to IP69K for enhanced environmental protection. Additionally, it uses Sun's floating style construction to reduce the risk of internal parts binding due to excessive installation torque or machining variations in cavity-cartridge interfaces. With a capacity of 4 gpm (15 L/min) and maximum leakage of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), this cartridge valve provides robust performance in demanding hydraulic applications.
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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