SUN HYDRAULICS
DMDAXBN748
$148.23 USD
- SUN HYDRAULICS
- Material:DMDAXBN748
- Model:DMDA-XBN@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 DMDAXBN748 (DMDAXBN748) is a solenoid-operated 3-way, 2-position cartridge valve that excels in direct-acting, balanced spool directional control. This model is particularly suited for applications requiring reliable switching and directional control of hydraulic fluids within a system. The valve operates without the need for a minimum hydraulic pressure, making it highly effective in various operational environments. Featuring a robust design, the DMDAXBN748 incorporates a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), ensuring durability and longevity even under high-stress conditions. The valve is engineered with closed transitions between spool positions B and R, enhancing performance by providing faster and more consistent response times ideal for pilot control applications where capacity is less critical. This model also benefits from interchangeable coils with other Sun Series 1 solenoid products, which can be mounted in either direction for increased flexibility in installation. The wet armature design of the valve helps in cooling but requires consideration regarding the type of fluid used due to potential breakdowns at high temperatures. For maintenance or manual operation, the DMDAXBN748 features a manual override mechanism designed for temporary actuation with a mechanical life expectancy of around 7,000 cycles. Additionally, it is equipped with EPDM seals suitable for phosphate ester fluids but sensitive to petroleum-based substances which might damage the seals. Overall, the Sun Hydraulics DMDAXBN748 offers high reliability and performance tailored for sophisticated hydraulic systems requiring precise control over fluid direction and flow.
The Sun Hydraulics DMDAXBN748 (DMDAXBN748) is a solenoid-operated 3-way, 2-position cartridge valve that excels in direct-acting, balanced spool directional control. This model is particularly suited for applications requiring reliable switching and directional control of hydraulic fluids within a system. The valve operates without the need for a minimum hydraulic pressure, making it highly effective in various operational environments. Featuring a robust design, the DMDAXBN748 incorporates a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), ensuring durability and longevity even under high-stress conditions. The valve is engineered with closed transitions between spool positions B and R, enhancing performance by providing faster and more consistent response times ideal for pilot control applications where capacity is less critical. This model also benefits from interchangeable coils with other Sun Series 1 solenoid products, which can be mounted in either direction for increased flexibility in installation. The wet armature design of the valve helps in cooling but requires consideration regarding the type of fluid used due to potential breakdowns at high temperatures. For maintenance or manual operation, the DMDAXBN748 features a manual override mechanism designed for temporary actuation with a mechanical life expectancy of around 7,000 cycles. Additionally, it is equipped with EPDM seals suitable for phosphate ester fluids but sensitive to petroleum-based substances which might damage the seals. Overall, the Sun Hydraulics DMDAXBN748 offers high reliability and performance tailored for sophisticated hydraulic systems requiring 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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