SUN HYDRAULICS
DMDADNN248
$225.17 USD
- SUN HYDRAULICS
- Material:DMDADNN248
- Model:DMDA-DNN@248
- 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 DMDADNN248 (DMDADNN248) is a sophisticated solenoid-operated 3-way, 2-position cartridge valve designed to function as a direct-acting, balanced spool directional control valve. This high-performance valve is fatigue rated for demanding applications up to 5000 psi or 350 bar, making it suitable for various hydraulic systems. The DMDADNN248 features closed transitions between spools B and R, enhancing performance by ensuring faster and more consistent response times especially in pilot control applications where capacity is less critical. This model is direct actuated and operates efficiently without requiring a minimum hydraulic pressure, which allows for flexible installation options across different system configurations. For manual override applications, the DMDADNN248 includes a detent mechanism designed for temporary actuation with an estimated mechanical life of around 7,000 cycles. The valve\u2019s compatibility with EPDM seals makes it ideal for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids as they can damage the seals. Incorporating a wet armature design, the DMDADNN248 ensures that the working fluid not only lubricates but also cools the armature. This design consideration is crucial when the coil remains energized over extended periods as it prevents overheating and potential breakdown of certain fluid types like water-glycol mixtures. Additionally, this valve model offers interchangeable coils with other Sun Series 1 solenoid products and features Sun's floating style construction which minimizes internal part binding due to installation variances or cavity-cartridge machining errors. Overall, the Sun Hydraulics DMDADNN248 provides robust performance and reliability in a compact form factor suitable for diverse hydraulic applications needing precise control over fluid direction and flow.
The Sun Hydraulics DMDADNN248 (DMDADNN248) is a sophisticated solenoid-operated 3-way, 2-position cartridge valve designed to function as a direct-acting, balanced spool directional control valve. This high-performance valve is fatigue rated for demanding applications up to 5000 psi or 350 bar, making it suitable for various hydraulic systems. The DMDADNN248 features closed transitions between spools B and R, enhancing performance by ensuring faster and more consistent response times especially in pilot control applications where capacity is less critical. This model is direct actuated and operates efficiently without requiring a minimum hydraulic pressure, which allows for flexible installation options across different system configurations. For manual override applications, the DMDADNN248 includes a detent mechanism designed for temporary actuation with an estimated mechanical life of around 7,000 cycles. The valve\u2019s compatibility with EPDM seals makes it ideal for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids as they can damage the seals. Incorporating a wet armature design, the DMDADNN248 ensures that the working fluid not only lubricates but also cools the armature. This design consideration is crucial when the coil remains energized over extended periods as it prevents overheating and potential breakdown of certain fluid types like water-glycol mixtures. Additionally, this valve model offers interchangeable coils with other Sun Series 1 solenoid products and features Sun's floating style construction which minimizes internal part binding due to installation variances or cavity-cartridge machining errors. Overall, the Sun Hydraulics DMDADNN248 provides robust performance and reliability in a compact form factor suitable for diverse hydraulic applications needing precise control over fluid direction and flow.
This solenoid-operated 3-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.
- Spools B and R are closed in the transition between their two positions. This results in a higher performance limit at the expense of lower capacity. When used as pilot controls, where capacity is not a factor, the closed transition will provide faster and more consistent response times.
- This valve is direct actuated and requires no minimum hydraulic pressure for operation.
- 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 configured 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.
- Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
- 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-11A |
| Series | 1 |
| Capacity | 12 gpm45 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 50 ms50 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.@3000 psi80 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: 990-411-006 |
| Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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