SUN HYDRAULICS
DNDAXUN812
$218.72 USD
- SUN HYDRAULICS
- Material:DNDAXUN812
- Model:DNDA-XUN@812
- 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 DNDAXUN812 (DNDAXUN812) is a solenoid-operated, 4-way, 2-position cartridge valve that features a direct-acting, balanced spool design. Engineered for performance, the solenoid tube assembly is rated for fatigue at 5000 psi (350 bar), making it highly reliable for demanding applications. This valve operates without requiring minimum hydraulic pressure and offers various manual override options, although manual overrides are incompatible with weatherized coils. The detent mechanism in the D or L control models is designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. It is crucial to use EPDM seals only in systems with phosphate ester fluids to prevent damage from petroleum-based substances. The valve utilizes a wet armature design, where the working fluid surrounds the armature and absorbs heat generated by the coil. This feature may impact long-term functionality if certain fluids like water-glycol mixtures are used. The product offers a range of coil termination and voltage options, many of which include surge protection. The unique magnetic design of the solenoid ensures high efficiency and reliable valve shifting by providing high spool actuating force per watt expended. The DNDAXUN812 incorporates Sun's floating style construction to reduce internal part binding due to excessive installation torque or machining variations. It fits into a T-31A cavity and belongs to Series 1 with a capacity of 10 gpm (40 L/min). The valve demonstrates quick response times around 50 ms and minimal leakage at specified conditions. With interchangeable coils compatible with other Sun Series 1 products, it offers flexibility in installation direction. Connector options provide ratings up to IP69K for enhanced environmental protection, while additional weatherized coils are available for robust performance in various settings.
The Sun Hydraulics DNDAXUN812 (DNDAXUN812) is a solenoid-operated, 4-way, 2-position cartridge valve that features a direct-acting, balanced spool design. Engineered for performance, the solenoid tube assembly is rated for fatigue at 5000 psi (350 bar), making it highly reliable for demanding applications. This valve operates without requiring minimum hydraulic pressure and offers various manual override options, although manual overrides are incompatible with weatherized coils. The detent mechanism in the D or L control models is designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. It is crucial to use EPDM seals only in systems with phosphate ester fluids to prevent damage from petroleum-based substances. The valve utilizes a wet armature design, where the working fluid surrounds the armature and absorbs heat generated by the coil. This feature may impact long-term functionality if certain fluids like water-glycol mixtures are used. The product offers a range of coil termination and voltage options, many of which include surge protection. The unique magnetic design of the solenoid ensures high efficiency and reliable valve shifting by providing high spool actuating force per watt expended. The DNDAXUN812 incorporates Sun's floating style construction to reduce internal part binding due to excessive installation torque or machining variations. It fits into a T-31A cavity and belongs to Series 1 with a capacity of 10 gpm (40 L/min). The valve demonstrates quick response times around 50 ms and minimal leakage at specified conditions. With interchangeable coils compatible with other Sun Series 1 products, it offers flexibility in installation direction. Connector options provide ratings up to IP69K for enhanced environmental protection, while additional weatherized coils are available for robust performance in various settings.
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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