SUN HYDRAULICS
DNDCXWN648
$221.20 USD
- SUN HYDRAULICS
- Material:DNDCXWN648
- Model:DNDC-XWN@648
- 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 DNDCXWN648 (DNDCXWN648) is a direct acting, solenoid-operated, 4-way, 3-position spool valve engineered for precision hydraulic control. It features a spring-centered design that returns the spool to the neutral position when not energized. Activation of coil A channels flow from port 3 P to port 2 A and from port 4 B to port 1 T, while energizing coil B redirects flow from port 3 to port 4 and from port 2 to port 1. This valve is fatigue rated for service pressures up to 5000 psi (350 bar) and operates without the need for minimum hydraulic pressure, making it versatile for a range of applications. The DNDCXWN648 is designed with a wet armature solenoid configuration that enhances its efficiency by surrounding the armature with working fluid. This design helps dissipate heat generated by the coil, although users should be aware that certain fluids may degrade at elevated temperatures over time. The valve supports various coil termination and voltage options, including configurations with surge protection. Its high-efficiency solenoid ensures reliable valve shifting with significant spool actuating force per watt expended. This model incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. The valve supports a maximum flow capacity of 5 gpm (20 L/min) and features a rapid typical response time of 50 ms. It accommodates interchangeable coils compatible with other Sun Series 1 solenoid products, providing flexibility in installation. Additionally, coil connector options are rated up to IP69K for enhanced environmental protection. For systems utilizing phosphate ester fluids, EPDM seal cartridges are available; however, these seals should not be exposed to petroleum-based substances as they may incur damage. The DNDCXWN648 also offers robust performance with a switching frequency of up to 15,000 cycles per hour and minimal leakage rates at specified viscosities and pressures.
The Sun Hydraulics DNDCXWN648 (DNDCXWN648) is a direct acting, solenoid-operated, 4-way, 3-position spool valve engineered for precision hydraulic control. It features a spring-centered design that returns the spool to the neutral position when not energized. Activation of coil A channels flow from port 3 P to port 2 A and from port 4 B to port 1 T, while energizing coil B redirects flow from port 3 to port 4 and from port 2 to port 1. This valve is fatigue rated for service pressures up to 5000 psi (350 bar) and operates without the need for minimum hydraulic pressure, making it versatile for a range of applications. The DNDCXWN648 is designed with a wet armature solenoid configuration that enhances its efficiency by surrounding the armature with working fluid. This design helps dissipate heat generated by the coil, although users should be aware that certain fluids may degrade at elevated temperatures over time. The valve supports various coil termination and voltage options, including configurations with surge protection. Its high-efficiency solenoid ensures reliable valve shifting with significant spool actuating force per watt expended. This model incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. The valve supports a maximum flow capacity of 5 gpm (20 L/min) and features a rapid typical response time of 50 ms. It accommodates interchangeable coils compatible with other Sun Series 1 solenoid products, providing flexibility in installation. Additionally, coil connector options are rated up to IP69K for enhanced environmental protection. For systems utilizing phosphate ester fluids, EPDM seal cartridges are available; however, these seals should not be exposed to petroleum-based substances as they may incur damage. The DNDCXWN648 also offers robust performance with a switching frequency of up to 15,000 cycles per hour and minimal leakage rates at specified viscosities and pressures.
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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