SUN HYDRAULICS
DNDASEV528
$192.31 USD
- SUN HYDRAULICS
- Material:DNDASEV528
- Model:DNDA-SEV@528
- 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 DNDASEV528 (DNDASEV528) is a solenoid-operated 4-way, 2-position cartridge valve known for its direct-acting, balanced spool directional capabilities with an integrated soft shift feature. This feature significantly reduces system shock during valve actuation, making it suitable for applications where minimizing hydraulic shock is critical. However, it should not be relied upon in scenarios requiring precise timing control; in such cases, Sun's electro-proportional valves are recommended. The soft shift design increases response time compared to standard solenoids, with typical response times ranging from 150 ms to 300 ms depending on factors like flow rate and pressure. For optimal performance, port 1 should maintain a positive pressure. The DNDASEV528 includes a push-type manual override control but does not support other manual options such as T or D when using the soft shift feature. It features a fatigue-rated solenoid tube assembly for up to 5000 psi (350 bar) service and utilizes a wet armature design that exposes the working fluid to coil-generated heat. This can affect fluids like water-glycol mixtures over time due to potential varnish formation. The valve's solenoid boasts a unique magnetic design that enhances efficiency and ensures reliable shifting by providing high spool actuating force per watt expended. Available coil connector options offer protection ratings up to IP69K, with additional weatherized coils available for enhanced environmental protection. The valve incorporates Sun's floating style construction to minimize internal part binding risks due to excessive torque or machining variations. Key specifications include a capacity of 4 gpm (15 L/min), maximum operating pressure of 5000 psi (350 bar), and maximum valve leakage at 10 in\u00b3/min (160 cc/min) at 3000 psi (210 bar). The DNDASEV528 is designed for cavity T-31A in Series 1 applications and comes with a Viton seal kit option.
The Sun Hydraulics DNDASEV528 (DNDASEV528) is a solenoid-operated 4-way, 2-position cartridge valve known for its direct-acting, balanced spool directional capabilities with an integrated soft shift feature. This feature significantly reduces system shock during valve actuation, making it suitable for applications where minimizing hydraulic shock is critical. However, it should not be relied upon in scenarios requiring precise timing control; in such cases, Sun's electro-proportional valves are recommended. The soft shift design increases response time compared to standard solenoids, with typical response times ranging from 150 ms to 300 ms depending on factors like flow rate and pressure. For optimal performance, port 1 should maintain a positive pressure. The DNDASEV528 includes a push-type manual override control but does not support other manual options such as T or D when using the soft shift feature. It features a fatigue-rated solenoid tube assembly for up to 5000 psi (350 bar) service and utilizes a wet armature design that exposes the working fluid to coil-generated heat. This can affect fluids like water-glycol mixtures over time due to potential varnish formation. The valve's solenoid boasts a unique magnetic design that enhances efficiency and ensures reliable shifting by providing high spool actuating force per watt expended. Available coil connector options offer protection ratings up to IP69K, with additional weatherized coils available for enhanced environmental protection. The valve incorporates Sun's floating style construction to minimize internal part binding risks due to excessive torque or machining variations. Key specifications include a capacity of 4 gpm (15 L/min), maximum operating pressure of 5000 psi (350 bar), and maximum valve leakage at 10 in\u00b3/min (160 cc/min) at 3000 psi (210 bar). The DNDASEV528 is designed for cavity T-31A in Series 1 applications and comes with a Viton seal kit option.
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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