SUN HYDRAULICS
DNDASHN928
$188.33 USD
- SUN HYDRAULICS
- Material:DNDASHN928
- Model:DNDA-SHN@928
- 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 DNDASHN928 (DNDASHN928) is a solenoid-operated, 4-way, 2-position cartridge valve known for its direct-acting, balanced spool directional control with a soft shift feature. This soft shift capability significantly reduces system shock during valve actuation but is not recommended for applications where precise timing is crucial. For such cases, electro-proportional valves are suggested. The soft shift design increases response time to between 150 ms and 300 ms depending on factors like flow, pressure, coil voltage, oil viscosity, and ambient temperature. For optimal performance, port 1 should maintain positive pressure. This valve includes a push-type manual override but does not support other manual controls like T or D when the soft shift is employed; however, these can be installed in the field if required. It's important to note that manual override functionality is incompatible with weatherized coils. The solenoid tube assembly of the DNDASHN928 is rated for fatigue service up to 5000 psi (350 bar) and features a wet armature design which allows working fluid exposure to coil-generated heat\u2014an important consideration when using fluids that degrade at high temperatures. The solenoid's magnetic design ensures high efficiency by providing substantial spool actuating force per watt used. Furthermore, coil connector options offer protection ratings up to IP69K for enhanced environmental resistance. This valve uses Sun's floating style construction to reduce internal binding risks due to excessive installation torque or machining variations in cavity/cartridge interfaces. It fits into cavity T-31A and belongs to series 1 with a capacity of 4 gpm (15 L/min). Maximum leakage at standard conditions is limited to 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The model weighs approximately .60 lb (.30 kg) and requires specific installation torque parameters for optimal performance.
The Sun Hydraulics DNDASHN928 (DNDASHN928) is a solenoid-operated, 4-way, 2-position cartridge valve known for its direct-acting, balanced spool directional control with a soft shift feature. This soft shift capability significantly reduces system shock during valve actuation but is not recommended for applications where precise timing is crucial. For such cases, electro-proportional valves are suggested. The soft shift design increases response time to between 150 ms and 300 ms depending on factors like flow, pressure, coil voltage, oil viscosity, and ambient temperature. For optimal performance, port 1 should maintain positive pressure. This valve includes a push-type manual override but does not support other manual controls like T or D when the soft shift is employed; however, these can be installed in the field if required. It's important to note that manual override functionality is incompatible with weatherized coils. The solenoid tube assembly of the DNDASHN928 is rated for fatigue service up to 5000 psi (350 bar) and features a wet armature design which allows working fluid exposure to coil-generated heat\u2014an important consideration when using fluids that degrade at high temperatures. The solenoid's magnetic design ensures high efficiency by providing substantial spool actuating force per watt used. Furthermore, coil connector options offer protection ratings up to IP69K for enhanced environmental resistance. This valve uses Sun's floating style construction to reduce internal binding risks due to excessive installation torque or machining variations in cavity/cartridge interfaces. It fits into cavity T-31A and belongs to series 1 with a capacity of 4 gpm (15 L/min). Maximum leakage at standard conditions is limited to 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The model weighs approximately .60 lb (.30 kg) and requires specific installation torque parameters 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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