SUN HYDRAULICS
DNDYSXN748
$282.65 USD
- SUN HYDRAULICS
- Material:DNDYSXN748
- Model:DNDY-SXN@748
- 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 DNDYSXN748 (DNDYSXN748) is a solenoid-operated, 6-way, 2-position cartridge valve designed for seamless integration into hydraulic systems requiring circuit selection. This direct-acting, balanced spool valve features a soft shift mechanism that significantly reduces system shock during valve actuation. In its de-energized state, the valve connects P and T to the first circuit; when energized, it switches to connect P and T to the second circuit. While this soft shift feature enhances system smoothness, it is not recommended for applications where precise timing or ramping is critical; instead, electro-proportional valves might be more suitable in such cases. The soft shift design results in longer response times compared to standard solenoids, with typical times ranging from 150 ms to 300 ms depending on variables like flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. For optimal performance of the soft shift feature, maintaining a positive pressure at port 1 is advised. The cartridge includes a push-type manual override control but note that other manual control options are not compatible with the soft shift feature unless installed in the field. The valve's solenoid tube assembly is rated for fatigue at pressures up to 5000 psi (350 bar), utilizing a wet armature design which may affect certain fluids over prolonged use due to heat exposure. The magnetic design of the solenoid ensures high efficiency and reliable operation with interchangeable coils compatible with other Sun Series 1 products. Coil connectors can achieve protection ratings up to IP69K for enhanced environmental resilience. The valve also incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. With a capacity of 5 gpm (20 L/min) and maximum leakage of 5 in\u00b3/min at 3000 psi (80 cc/min at 210 bar), this versatile component offers robust performance across various hydraulic applications.
The Sun Hydraulics DNDYSXN748 (DNDYSXN748) is a solenoid-operated, 6-way, 2-position cartridge valve designed for seamless integration into hydraulic systems requiring circuit selection. This direct-acting, balanced spool valve features a soft shift mechanism that significantly reduces system shock during valve actuation. In its de-energized state, the valve connects P and T to the first circuit; when energized, it switches to connect P and T to the second circuit. While this soft shift feature enhances system smoothness, it is not recommended for applications where precise timing or ramping is critical; instead, electro-proportional valves might be more suitable in such cases. The soft shift design results in longer response times compared to standard solenoids, with typical times ranging from 150 ms to 300 ms depending on variables like flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. For optimal performance of the soft shift feature, maintaining a positive pressure at port 1 is advised. The cartridge includes a push-type manual override control but note that other manual control options are not compatible with the soft shift feature unless installed in the field. The valve's solenoid tube assembly is rated for fatigue at pressures up to 5000 psi (350 bar), utilizing a wet armature design which may affect certain fluids over prolonged use due to heat exposure. The magnetic design of the solenoid ensures high efficiency and reliable operation with interchangeable coils compatible with other Sun Series 1 products. Coil connectors can achieve protection ratings up to IP69K for enhanced environmental resilience. The valve also incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. With a capacity of 5 gpm (20 L/min) and maximum leakage of 5 in\u00b3/min at 3000 psi (80 cc/min at 210 bar), this versatile component offers robust performance across various hydraulic applications.
This solenoid-operated 6-way, 2-position cartridge is a direct-acting, balanced spool valve with a soft shift feature. The soft shift feature greatly reduces system shock due to valve actuation. The typical use for this valve is to select between two separate circuits. The de-energized condition connects P and T to the first circuit and when energized connects P and T to the second circuit.
- 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 is direct actuated and requires no minimum hydraulic pressure for operation.
- 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.
- Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
- 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-61A |
| Series | 1 |
| Capacity | 5 gpm20 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.@3000 psi80 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: 990-461-006 |
Show FAQ