SUN HYDRAULICS
DMDAXPV728
$204.02 USD
- SUN HYDRAULICS
- Material:DMDAXPV728
- Model:DMDA-XPV@728
- 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 DMDAXPV728 (DMDAXPV728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic systems. This direct-acting, balanced spool directional valve features a fatigue rating for 5000 psi (350 bar) service, ensuring robust performance under high-pressure conditions. The valve is characterized by closed transitions between its two positions (Spools B and R), which while reducing capacity, enhances performance limits by providing faster and more consistent response times especially in pilot control applications where capacity is less critical. The DMDAXPV728 operates without requiring a minimum hydraulic pressure, making it versatile for various applications. It includes options for manual override through the D or L control with a detent mechanism designed primarily for temporary actuation. The mechanical life expectancy of these manual control assemblies is about 7,000 cycles. Additionally, this model can be equipped with EPDM seals suitable for phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it damages the seals. This valve utilizes a wet armature design allowing the working fluid to surround the armature which can be significant if the coil remains energized over extended periods \u2014 this may lead to breakdowns in certain fluids like water-glycol mixtures that could form varnishes impacting cartridge functionality. Moreover, its coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. With features like Sun\u2019s floating style construction that minimizes internal parts binding due to installation torque or machining variations of cavity/cartridge, the DMDAXPV728 ensures reliable operation and ease of installation. It supports up to 12 gpm (45 L/min) capacity and has typical response times around 50 ms with maximum operating pressures up to 5000 psi (350 bar).
The Sun Hydraulics DMDAXPV728 (DMDAXPV728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic systems. This direct-acting, balanced spool directional valve features a fatigue rating for 5000 psi (350 bar) service, ensuring robust performance under high-pressure conditions. The valve is characterized by closed transitions between its two positions (Spools B and R), which while reducing capacity, enhances performance limits by providing faster and more consistent response times especially in pilot control applications where capacity is less critical. The DMDAXPV728 operates without requiring a minimum hydraulic pressure, making it versatile for various applications. It includes options for manual override through the D or L control with a detent mechanism designed primarily for temporary actuation. The mechanical life expectancy of these manual control assemblies is about 7,000 cycles. Additionally, this model can be equipped with EPDM seals suitable for phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it damages the seals. This valve utilizes a wet armature design allowing the working fluid to surround the armature which can be significant if the coil remains energized over extended periods \u2014 this may lead to breakdowns in certain fluids like water-glycol mixtures that could form varnishes impacting cartridge functionality. Moreover, its coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. With features like Sun\u2019s floating style construction that minimizes internal parts binding due to installation torque or machining variations of cavity/cartridge, the DMDAXPV728 ensures reliable operation and ease of installation. It supports up to 12 gpm (45 L/min) capacity and has typical response times around 50 ms with maximum operating pressures up to 5000 psi (350 bar).
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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