SUN HYDRAULICS
DNDATNN748
$256.84 USD
- SUN HYDRAULICS
- Material:DNDATNN748
- Model:DNDA-TNN@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 DNDATNN748 (DNDATNN748) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct actuation without requiring minimum hydraulic pressure. This balanced spool directional valve features a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar). It offers several manual override options, although these are not compatible with weatherized coils. For models with D or L control, the detent mechanism is intended for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. The cartridge is suitable for systems using phosphate ester fluids when equipped with EPDM seals but should avoid petroleum-based fluids to prevent seal damage. Utilizing a wet armature design, the valve ensures that the working fluid surrounds and cools the armature during prolonged coil energization. However, caution is advised with water-glycol mixtures due to potential varnish formation affecting functionality over time. The valve's innovative magnetic design enhances solenoid efficiency by maximizing spool actuating force per watt expended, ensuring reliable shifting. Coils are interchangeable with other Sun Series 1 products and can be mounted in either direction on the tube, offering versatility in coil termination and voltage options along with surge protection capabilities. Coil connector options provide ratings up to IP69K for robust environmental protection, and additional weatherized coils and kits are available. The valve incorporates Sun's floating style construction to minimize internal part binding risks due to installation torque or machining variations. Technical specifications include a T-31A cavity configuration, Series 1 designation, a capacity of 10 gpm (40 L/min), typical response time of 50 ms, maximum leakage at specified conditions of 10 in\u00b3/min (160 cc/min), and switching frequency capability up to 15,000 cycles per hour. The manual override requires a force of 5 lbs/1000 psi at Port 1 and has a stroke length of .10 inches (2.5 mm). 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), and compatible Viton seal kits are available for both cartridge and coil components.
The Sun Hydraulics DNDATNN748 (DNDATNN748) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct actuation without requiring minimum hydraulic pressure. This balanced spool directional valve features a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar). It offers several manual override options, although these are not compatible with weatherized coils. For models with D or L control, the detent mechanism is intended for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. The cartridge is suitable for systems using phosphate ester fluids when equipped with EPDM seals but should avoid petroleum-based fluids to prevent seal damage. Utilizing a wet armature design, the valve ensures that the working fluid surrounds and cools the armature during prolonged coil energization. However, caution is advised with water-glycol mixtures due to potential varnish formation affecting functionality over time. The valve's innovative magnetic design enhances solenoid efficiency by maximizing spool actuating force per watt expended, ensuring reliable shifting. Coils are interchangeable with other Sun Series 1 products and can be mounted in either direction on the tube, offering versatility in coil termination and voltage options along with surge protection capabilities. Coil connector options provide ratings up to IP69K for robust environmental protection, and additional weatherized coils and kits are available. The valve incorporates Sun's floating style construction to minimize internal part binding risks due to installation torque or machining variations. Technical specifications include a T-31A cavity configuration, Series 1 designation, a capacity of 10 gpm (40 L/min), typical response time of 50 ms, maximum leakage at specified conditions of 10 in\u00b3/min (160 cc/min), and switching frequency capability up to 15,000 cycles per hour. The manual override requires a force of 5 lbs/1000 psi at Port 1 and has a stroke length of .10 inches (2.5 mm). 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), and compatible Viton seal kits are available 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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