SUN HYDRAULICS
DNDATTN297
$289.40 USD
Tags:
- SUN HYDRAULICS
- Material:DNDATTN297
- Model:DNDA-TTN@297
- 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 DNDATTN297 (DNDATTN297) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This valve is engineered with a solenoid tube assembly fatigue-rated for 5000 psi (350 bar) service, allowing it to function without the need for minimum hydraulic pressure. It offers various manual override options, although compatibility with weatherized coils is limited. The manual override's detent mechanism is intended for temporary use and has a mechanical life expectancy of around 7,000 cycles. For systems utilizing phosphate ester fluids, EPDM seals are available; however, these are not suitable for petroleum-based substances. The valve features a wet armature design that exposes the working fluid to coil-generated heat, which may affect certain fluids like water-glycol mixtures over time. It boasts a high-efficiency solenoid with significant spool actuating force per Watt used, ensuring reliable operation. The cartridge integrates Sun\u2019s floating style construction to reduce internal binding risks due to installation torque or machining variations. The DNDATTN297 fits into cavity T-31A and belongs to Series 1 with a capacity of 10 gpm (40 L/min). Its maximum operating pressure reaches up to 5000 psi (350 bar), and it typically responds within 50 ms. Valve leakage at maximum conditions is limited to 10 in\u00b3/min (160 cc/min). It supports switching frequencies up to 15,000 cycles per hour and requires a manual override force of approximately 5 lbs/1000 psi at Port 1. The solenoid tube diameter measures .75 inches (19 mm), while the valve hex size is .78 inches (22.2 mm), with an installation torque range of 30-35 lbf ft (41-47 Nm). The model weighs approximately .60 lb (.30 kg). Viton seal kits are available for both the cartridge and coil components.
The Sun Hydraulics DNDATTN297 (DNDATTN297) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This valve is engineered with a solenoid tube assembly fatigue-rated for 5000 psi (350 bar) service, allowing it to function without the need for minimum hydraulic pressure. It offers various manual override options, although compatibility with weatherized coils is limited. The manual override's detent mechanism is intended for temporary use and has a mechanical life expectancy of around 7,000 cycles. For systems utilizing phosphate ester fluids, EPDM seals are available; however, these are not suitable for petroleum-based substances. The valve features a wet armature design that exposes the working fluid to coil-generated heat, which may affect certain fluids like water-glycol mixtures over time. It boasts a high-efficiency solenoid with significant spool actuating force per Watt used, ensuring reliable operation. The cartridge integrates Sun\u2019s floating style construction to reduce internal binding risks due to installation torque or machining variations. The DNDATTN297 fits into cavity T-31A and belongs to Series 1 with a capacity of 10 gpm (40 L/min). Its maximum operating pressure reaches up to 5000 psi (350 bar), and it typically responds within 50 ms. Valve leakage at maximum conditions is limited to 10 in\u00b3/min (160 cc/min). It supports switching frequencies up to 15,000 cycles per hour and requires a manual override force of approximately 5 lbs/1000 psi at Port 1. The solenoid tube diameter measures .75 inches (19 mm), while the valve hex size is .78 inches (22.2 mm), with an installation torque range of 30-35 lbf ft (41-47 Nm). The model weighs approximately .60 lb (.30 kg). Viton seal kits are available for both the 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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