SUN HYDRAULICS
DNDCXWN748
$228.15 USD
- SUN HYDRAULICS
- Material:DNDCXWN748
- Model:DNDC-XWN@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 DNDCXWN748 (DNDCXWN748) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for precise hydraulic flow control. This valve is engineered to be spring-centered to a neutral position, allowing for controlled flow paths when energized. Specifically, energizing coil A directs flow from port 3 P to port 2 A and from port 4 B to port 1 T, while energizing coil B directs flow from port 3 to port 4 and from port 2 to port 1. The valve's solenoid tube assembly is fatigue rated for service up to 5000 psi (350 bar), ensuring durability in demanding applications. It features a wet armature design that allows the working fluid to surround the armature, which can influence performance if the coil remains energized for extended periods. This model does not require a minimum hydraulic pressure for operation, making it versatile in various systems. It is particularly suitable for differential flow circuits where higher return flows should be channeled through specific ports. The DNDCXWN748 offers compatibility with EPDM seals for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids as they may damage the seals. A range of coil termination and voltage options are available, including those with surge protection. The solenoid's magnetic design ensures high efficiency and reliable shifting by providing a significant spool actuating force per watt. The valve incorporates Sun's floating style construction to reduce internal part binding due to installation torque or machining variations. It supports a maximum capacity of 5 gpm (20 L/min) and offers rapid response times of approximately 50 ms with a switching frequency of up to 15,000 cycles per hour. The DNDCXWN748 is compatible with interchangeable coils from other Sun Series 1 solenoid products and features robust environmental protection options like IP69K-rated coil connectors.
The Sun Hydraulics DNDCXWN748 (DNDCXWN748) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for precise hydraulic flow control. This valve is engineered to be spring-centered to a neutral position, allowing for controlled flow paths when energized. Specifically, energizing coil A directs flow from port 3 P to port 2 A and from port 4 B to port 1 T, while energizing coil B directs flow from port 3 to port 4 and from port 2 to port 1. The valve's solenoid tube assembly is fatigue rated for service up to 5000 psi (350 bar), ensuring durability in demanding applications. It features a wet armature design that allows the working fluid to surround the armature, which can influence performance if the coil remains energized for extended periods. This model does not require a minimum hydraulic pressure for operation, making it versatile in various systems. It is particularly suitable for differential flow circuits where higher return flows should be channeled through specific ports. The DNDCXWN748 offers compatibility with EPDM seals for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids as they may damage the seals. A range of coil termination and voltage options are available, including those with surge protection. The solenoid's magnetic design ensures high efficiency and reliable shifting by providing a significant spool actuating force per watt. The valve incorporates Sun's floating style construction to reduce internal part binding due to installation torque or machining variations. It supports a maximum capacity of 5 gpm (20 L/min) and offers rapid response times of approximately 50 ms with a switching frequency of up to 15,000 cycles per hour. The DNDCXWN748 is compatible with interchangeable coils from other Sun Series 1 solenoid products and features robust environmental protection options like IP69K-rated coil connectors.
This direct acting, solenoid-operated, 4-way, 3-position spool valve is spring centered to the neutral position. When coil A is energized, the flow is from port 3 (P) to port 2 (A) and from port 4 (B) to port 1 (T). When coil B is energized, the flow is from port 3 to port 4 and from port 2 to port 1.
- 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.
- In differential flow circuits, the higher return flow should be directed through port 2 (A) to port 1 (T).
- Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- 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.
- A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
- 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-31A |
| Series | 1 |
| Capacity | 5 gpm20 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 50 ms50 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 10 in³/min.@3000 psi160 cc/min.@210 bar |
| Switching Frequency | 15000 cycles/hr15000 cycles/hr |
| 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 |
| Seal kit - Cartridge | Viton: 990-431-006 |
| Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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