SUN HYDRAULICS
DNDASDV824
$205.80 USD
- SUN HYDRAULICS
- Material:DNDASDV824
- Model:DNDA-SDV@824
- 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 DNDASDV824 (DNDASDV824) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control with a soft shift feature to minimize system shock during valve actuation. This feature is particularly beneficial for applications where reducing shock is essential, though it may not be suitable for critical timing applications. For precise ramping or timing control, Sun's electro-proportional valves are recommended. The soft shift characteristic increases response time compared to standard solenoids, with typical times ranging from 150 ms to 300 ms depending on factors like flow, pressure, coil voltage, oil viscosity, and ambient temperature. Consistent performance requires port 1 to maintain positive pressure. The valve includes a push-type manual override control; however, other manual controls cannot be ordered with the soft shift but can be installed later if needed. Note that manual override is incompatible with weatherized coils. The solenoid tube assembly is rated for fatigue at 5000 psi (350 bar) and features a wet armature design that allows the working fluid to surround the armature. This design enhances efficiency by using the fluid to dissipate heat generated by the coil but requires attention to fluid composition as certain mixtures may degrade over time at high temperatures. The solenoid's magnetic design ensures high efficiency and reliable valve shifting. The DNDASDV824 incorporates Sun's floating style construction to reduce internal binding risks due to excessive installation torque or machining variations in cavity/cartridge interfaces. It fits T31A cavities and has a capacity of 4 gpm (15 L/min), with maximum leakage at specified conditions of 10 in\u00b3/min (160 cc/min). The valve weighs approximately .60 lb (.30 kg) and utilizes Viton seals available in kit form under part number 990431006.
The Sun Hydraulics DNDASDV824 (DNDASDV824) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control with a soft shift feature to minimize system shock during valve actuation. This feature is particularly beneficial for applications where reducing shock is essential, though it may not be suitable for critical timing applications. For precise ramping or timing control, Sun's electro-proportional valves are recommended. The soft shift characteristic increases response time compared to standard solenoids, with typical times ranging from 150 ms to 300 ms depending on factors like flow, pressure, coil voltage, oil viscosity, and ambient temperature. Consistent performance requires port 1 to maintain positive pressure. The valve includes a push-type manual override control; however, other manual controls cannot be ordered with the soft shift but can be installed later if needed. Note that manual override is incompatible with weatherized coils. The solenoid tube assembly is rated for fatigue at 5000 psi (350 bar) and features a wet armature design that allows the working fluid to surround the armature. This design enhances efficiency by using the fluid to dissipate heat generated by the coil but requires attention to fluid composition as certain mixtures may degrade over time at high temperatures. The solenoid's magnetic design ensures high efficiency and reliable valve shifting. The DNDASDV824 incorporates Sun's floating style construction to reduce internal binding risks due to excessive installation torque or machining variations in cavity/cartridge interfaces. It fits T31A cavities and has a capacity of 4 gpm (15 L/min), with maximum leakage at specified conditions of 10 in\u00b3/min (160 cc/min). The valve weighs approximately .60 lb (.30 kg) and utilizes Viton seals available in kit form under part number 990431006.
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 |
Show FAQ
