SUN HYDRAULICS
DNDASHN824
$182.97 USD
- SUN HYDRAULICS
- Material:DNDASHN824
- Model:DNDA-SHN@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 DNDASHN824 (DNDASHN824) is a solenoid-operated 4-way, 2-position cartridge valve designed with a direct-acting, balanced spool and a soft shift feature to minimize system shock during valve actuation. This soft shift functionality reduces system impact but is not recommended for applications requiring precise timing control; for such needs, electroproportional valves are suggested. The response time of this valve varies between 150 ms and 300 ms depending on several factors including flow, pressure, coil voltage, oil viscosity, and ambient temperature. To ensure consistent performance, port 1 should be maintained at positive pressure. This model features a push-type manual override control which can be easily installed in the field but is not compatible with weatherized coils. The solenoid tube assembly of the valve is fatigue-rated for service up to 5000 psi (350 bar) and utilizes a wet armature design which immerses the working fluid around the armature. This design consideration is important as fluids like water-glycol mixtures may degrade over time due to heat exposure from the coil. The high-efficiency solenoid design yields significant spool actuating force per watt expended, enhancing reliability in valve shifting. The valve also incorporates Sun's floating style construction to reduce internal binding risks from installation torque or machining variations. It fits into cavity T-31A with a capacity of 4 gpm (15 L/min) and has maximum leakage at specified conditions of 10 in\u00b3/min (160 cc/min). The manual override requires a force of 5 lbs/1000 psi (33 N/100 bar), with a stroke length of .10 inches (2.5 mm). The DNDASHN824 weighs approximately .60 lb (.30 kg) and comes equipped with Viton seals for optimal performance.
The Sun Hydraulics DNDASHN824 (DNDASHN824) is a solenoid-operated 4-way, 2-position cartridge valve designed with a direct-acting, balanced spool and a soft shift feature to minimize system shock during valve actuation. This soft shift functionality reduces system impact but is not recommended for applications requiring precise timing control; for such needs, electroproportional valves are suggested. The response time of this valve varies between 150 ms and 300 ms depending on several factors including flow, pressure, coil voltage, oil viscosity, and ambient temperature. To ensure consistent performance, port 1 should be maintained at positive pressure. This model features a push-type manual override control which can be easily installed in the field but is not compatible with weatherized coils. The solenoid tube assembly of the valve is fatigue-rated for service up to 5000 psi (350 bar) and utilizes a wet armature design which immerses the working fluid around the armature. This design consideration is important as fluids like water-glycol mixtures may degrade over time due to heat exposure from the coil. The high-efficiency solenoid design yields significant spool actuating force per watt expended, enhancing reliability in valve shifting. The valve also incorporates Sun's floating style construction to reduce internal binding risks from installation torque or machining variations. It fits into cavity T-31A with a capacity of 4 gpm (15 L/min) and has maximum leakage at specified conditions of 10 in\u00b3/min (160 cc/min). The manual override requires a force of 5 lbs/1000 psi (33 N/100 bar), with a stroke length of .10 inches (2.5 mm). The DNDASHN824 weighs approximately .60 lb (.30 kg) and comes equipped with Viton seals for optimal performance.
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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