SUN HYDRAULICS
DNDATTN298
$287.32 USD
- SUN HYDRAULICS
- Material:DNDATTN298
- Model:DNDA-TTN@298
- 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 DNDATTN298 (DNDATTN298) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This valve is engineered for high-performance applications with a fatigue-rated solenoid tube assembly suitable for 5000 psi (350 bar) service, ensuring reliability in demanding environments. It requires no minimum hydraulic pressure to operate, making it versatile across various hydraulic systems. The cartridge offers multiple manual override options, including models without manual overrides, though note that manual override features are incompatible with weatherized coils. Models with D or L control have a detent mechanism for temporary actuation and boast a mechanical life expectancy of approximately 7,000 cycles. This valve features EPDM seals for compatibility with phosphate ester fluids; exposure to petroleum-based substances can damage the seals. The wet armature design allows the working fluid to cool the armature but may affect fluid stability over time if the coil is energized for extended periods\u2014particularly relevant when using water-glycol mixtures. The solenoid's magnetic design ensures efficient operation with high spool actuating force relative to power consumption, guaranteeing dependable valve shifting. The DNDATTN298 incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. It fits into a T-31A cavity and belongs to Series 1, offering a capacity of up to 10 gpm (40 L/min) and capable of handling maximum operating pressures of 5000 psi (350 bar). With a typical response time of 50 ms and maximum leakage at minimal levels under specified conditions, this cartridge is suitable for high-frequency switching applications up to 15,000 cycles per hour. Interchangeable coils from Sun Series 1 can be mounted in either direction and offer various termination options with ratings up to IP69K for enhanced environmental protection.
The Sun Hydraulics DNDATTN298 (DNDATTN298) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This valve is engineered for high-performance applications with a fatigue-rated solenoid tube assembly suitable for 5000 psi (350 bar) service, ensuring reliability in demanding environments. It requires no minimum hydraulic pressure to operate, making it versatile across various hydraulic systems. The cartridge offers multiple manual override options, including models without manual overrides, though note that manual override features are incompatible with weatherized coils. Models with D or L control have a detent mechanism for temporary actuation and boast a mechanical life expectancy of approximately 7,000 cycles. This valve features EPDM seals for compatibility with phosphate ester fluids; exposure to petroleum-based substances can damage the seals. The wet armature design allows the working fluid to cool the armature but may affect fluid stability over time if the coil is energized for extended periods\u2014particularly relevant when using water-glycol mixtures. The solenoid's magnetic design ensures efficient operation with high spool actuating force relative to power consumption, guaranteeing dependable valve shifting. The DNDATTN298 incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. It fits into a T-31A cavity and belongs to Series 1, offering a capacity of up to 10 gpm (40 L/min) and capable of handling maximum operating pressures of 5000 psi (350 bar). With a typical response time of 50 ms and maximum leakage at minimal levels under specified conditions, this cartridge is suitable for high-frequency switching applications up to 15,000 cycles per hour. Interchangeable coils from Sun Series 1 can be mounted in either direction and offer various termination options with ratings up to IP69K for enhanced environmental protection.
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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