SUN HYDRAULICS
DMDAXPN748
$196.08 USD
- SUN HYDRAULICS
- Material:DMDAXPN748
- Model:DMDA-XPN@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 DMDAXPN748 (DMDAXPN748) is a solenoid-operated 3-way, 2-position cartridge valve that exemplifies precision and reliability in hydraulic system control. This direct-acting, balanced spool directional valve features a robust design with a solenoid tube assembly rated for fatigue at 5000 psi (350 bar), ensuring it withstands demanding conditions. It has closed transitions between Spools B and R, optimizing performance by providing faster and more consistent response times ideal for pilot control applications where capacity is less critical. The DMDAXPN748 requires no minimum hydraulic pressure to operate, making it versatile for various applications. It incorporates manual override options with a detent mechanism designed for temporary actuation, supporting up to approximately 7,000 cycles. This model can be equipped with EPDM seals suitable for phosphate ester fluids but must avoid contact with petroleum-based substances to prevent seal damage. This valve features a wet armature design where the working fluid surrounds the armature, which is critical when the coil is energized over extended periods as it may affect certain fluid types due to heat exposure. The interchangeable coils are compatible with other Sun Series 1 solenoid products and can be installed in any direction on the tube. Additional design benefits include the Sun floating style construction which minimizes internal parts binding caused by excessive installation torque or machining variations of cavity/cartridge. With a maximum operating pressure of 5000 psi (350 bar) and a capacity of 12 gpm (45 L/min), along with rapid response times typically around 50 ms and switching frequency up to 15,000 cycles/hr, the DMDAXPN748 offers reliable performance and adaptability in complex hydraulic systems.
The Sun Hydraulics DMDAXPN748 (DMDAXPN748) is a solenoid-operated 3-way, 2-position cartridge valve that exemplifies precision and reliability in hydraulic system control. This direct-acting, balanced spool directional valve features a robust design with a solenoid tube assembly rated for fatigue at 5000 psi (350 bar), ensuring it withstands demanding conditions. It has closed transitions between Spools B and R, optimizing performance by providing faster and more consistent response times ideal for pilot control applications where capacity is less critical. The DMDAXPN748 requires no minimum hydraulic pressure to operate, making it versatile for various applications. It incorporates manual override options with a detent mechanism designed for temporary actuation, supporting up to approximately 7,000 cycles. This model can be equipped with EPDM seals suitable for phosphate ester fluids but must avoid contact with petroleum-based substances to prevent seal damage. This valve features a wet armature design where the working fluid surrounds the armature, which is critical when the coil is energized over extended periods as it may affect certain fluid types due to heat exposure. The interchangeable coils are compatible with other Sun Series 1 solenoid products and can be installed in any direction on the tube. Additional design benefits include the Sun floating style construction which minimizes internal parts binding caused by excessive installation torque or machining variations of cavity/cartridge. With a maximum operating pressure of 5000 psi (350 bar) and a capacity of 12 gpm (45 L/min), along with rapid response times typically around 50 ms and switching frequency up to 15,000 cycles/hr, the DMDAXPN748 offers reliable performance and adaptability in complex hydraulic systems.
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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