SUN HYDRAULICS
DNDASTV624
$185.45 USD
- SUN HYDRAULICS
- Material:DNDASTV624
- Model:DNDA-STV@624
- 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 DNDASTV624 (DNDASTV624) is a solenoid-operated 4-way, 2-position cartridge valve designed for precise directional control in hydraulic systems. This direct-acting, balanced spool valve features a soft shift mechanism that significantly minimizes system shock during actuation, making it ideal for applications where reducing pressure spikes is crucial. However, it should not be relied upon for applications requiring precise timing; for such needs, Sun's electro-proportional valves are recommended. The soft shift feature does increase response time compared to standard solenoids, with typical response times ranging from 150 ms to 300 ms depending on factors such as flow rate, pressure, and oil viscosity. The DNDASTV624 includes a push-type manual override control for increased flexibility in operation. It is important to note that this manual override is not compatible with weatherized coils. The valve's solenoid tube assembly is fatigue-rated for service up to 5000 psi (350 bar), ensuring durability and reliability under high-pressure conditions. Employing a wet armature design, the working fluid surrounds the armature, which can influence performance if the coil remains energized over long periods; certain fluids may degrade at these elevated temperatures. The valve's construction incorporates Sun's floating style design to minimize potential binding from installation torque or machining variations. It fits into a T-31A cavity and has a capacity of 4 gpm (15 L/min). The DNDASTV624 offers multiple coil connector options with ratings up to IP69K for superior environmental protection. With its high-efficiency solenoid design yielding strong spool actuating force per watt expended, this cartridge valve provides reliable performance in demanding hydraulic applications.
The Sun Hydraulics DNDASTV624 (DNDASTV624) is a solenoid-operated 4-way, 2-position cartridge valve designed for precise directional control in hydraulic systems. This direct-acting, balanced spool valve features a soft shift mechanism that significantly minimizes system shock during actuation, making it ideal for applications where reducing pressure spikes is crucial. However, it should not be relied upon for applications requiring precise timing; for such needs, Sun's electro-proportional valves are recommended. The soft shift feature does increase response time compared to standard solenoids, with typical response times ranging from 150 ms to 300 ms depending on factors such as flow rate, pressure, and oil viscosity. The DNDASTV624 includes a push-type manual override control for increased flexibility in operation. It is important to note that this manual override is not compatible with weatherized coils. The valve's solenoid tube assembly is fatigue-rated for service up to 5000 psi (350 bar), ensuring durability and reliability under high-pressure conditions. Employing a wet armature design, the working fluid surrounds the armature, which can influence performance if the coil remains energized over long periods; certain fluids may degrade at these elevated temperatures. The valve's construction incorporates Sun's floating style design to minimize potential binding from installation torque or machining variations. It fits into a T-31A cavity and has a capacity of 4 gpm (15 L/min). The DNDASTV624 offers multiple coil connector options with ratings up to IP69K for superior environmental protection. With its high-efficiency solenoid design yielding strong spool actuating force per watt expended, this cartridge valve provides reliable 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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