SUN HYDRAULICS
DNDAXNV728
$228.05 USD
- SUN HYDRAULICS
- Material:DNDAXNV728
- Model:DNDA-XNV@728
- 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 DNDAXNV728 (DNDAXNV728) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. Built for robust performance, the solenoid tube assembly is fatigue-rated for service pressures up to 5000 psi (350 bar), ensuring reliability in demanding applications. This valve operates without the need for minimum hydraulic pressure and features multiple manual override options, though it's important to note that manual overrides are incompatible with weatherized coils. The DNDAXNV728 integrates a wet armature design, which allows the working fluid to cool the armature, although prolonged coil energization may affect fluid stability in certain mixtures like water-glycol. It offers various coil termination and voltage configurations with optional surge protection. The high-efficiency solenoid design provides strong spool actuation force per watt, enhancing valve reliability. This model incorporates Sun's floating style construction to prevent internal binding due to installation torque or machining variations. Interchangeable coils with other Sun Series 1 products provide flexibility in mounting direction and environmental protection up to IP69K with specific connector options. Key specifications include a cavity size of T-31A, a maximum capacity of 10 gpm (40 L/min), and typical response times of 50 milliseconds. The valve can handle a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar) and supports switching frequencies up to 15,000 cycles per hour. The manual override requires a force of 5 lbs/1000 psi (33 N/100 bar) at Port 1 with a stroke length of .10 inches (2.5 mm). With dimensions including a solenoid tube diameter of .75 inches (19 mm) and a hex size of .78 inches (22.2 mm), it installs with torque between 30-35 lbf ft (41-47 Nm). The model weighs .60 lb (.30 kg) and is available with Viton seal kits for both cartridge and coil components.
The Sun Hydraulics DNDAXNV728 (DNDAXNV728) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. Built for robust performance, the solenoid tube assembly is fatigue-rated for service pressures up to 5000 psi (350 bar), ensuring reliability in demanding applications. This valve operates without the need for minimum hydraulic pressure and features multiple manual override options, though it's important to note that manual overrides are incompatible with weatherized coils. The DNDAXNV728 integrates a wet armature design, which allows the working fluid to cool the armature, although prolonged coil energization may affect fluid stability in certain mixtures like water-glycol. It offers various coil termination and voltage configurations with optional surge protection. The high-efficiency solenoid design provides strong spool actuation force per watt, enhancing valve reliability. This model incorporates Sun's floating style construction to prevent internal binding due to installation torque or machining variations. Interchangeable coils with other Sun Series 1 products provide flexibility in mounting direction and environmental protection up to IP69K with specific connector options. Key specifications include a cavity size of T-31A, a maximum capacity of 10 gpm (40 L/min), and typical response times of 50 milliseconds. The valve can handle a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar) and supports switching frequencies up to 15,000 cycles per hour. The manual override requires a force of 5 lbs/1000 psi (33 N/100 bar) at Port 1 with a stroke length of .10 inches (2.5 mm). With dimensions including a solenoid tube diameter of .75 inches (19 mm) and a hex size of .78 inches (22.2 mm), it installs with torque between 30-35 lbf ft (41-47 Nm). The model weighs .60 lb (.30 kg) and is available with Viton seal kits for both cartridge and coil components.
This solenoid-operated 4-way, 2-position cartridge is a direct-acting, balanced spool directional valve.
- 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 cartridge has several manual override choices, including no manual override. See the CONFIGURATION section. Please note: Manual override functionality is not compatible with weatherized coils.
- On models equipped with the D or L control, the detent mechanism in the manual override is meant for temporary actuation. The D, L and T manual control assembly has a mechanical life expectancy of approximately 7,000 cycles.
- 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 | 10 gpm40 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 |
| 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 |
| Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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