SUN HYDRAULICS
DMDADPN728
$233.81 USD
- SUN HYDRAULICS
- Material:DMDADPN728
- Model:DMDA-DPN@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 DMDADPN728 (DMDADPN728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is engineered to handle a maximum operating pressure of 5000 psi (350 bar) and offers a flow capacity of up to 12 gpm (45 L/min). The DMDADPN728 features a fatigue-rated solenoid tube assembly suitable for demanding environments and high-pressure applications. One of the key attributes of this model is its closed transition between spool positions B and R, enhancing performance by providing faster and more consistent response times, especially beneficial in pilot control applications where capacity is less critical. The valve requires no minimum hydraulic pressure to operate, making it versatile across various hydraulic systems. Equipped with EPDM seals, the DMDADPN728 is specifically configured for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids which can damage the seals. The wet armature design ensures the working fluid surrounds the armature, although prolonged energization could affect fluid integrity due to heat exposure. This model also incorporates Sun's floating style construction which minimizes potential internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. The manual override feature, available in models with D or L control options, has a mechanical life expectancy of approximately 7,000 cycles and is intended for temporary actuation only. For maintenance and longevity, the interchangeable coils compatible with other Sun Series 1 solenoid products offer flexibility and ease of replacement. Each component of the DMDADPN728 has been crafted for durability and optimal performance in sophisticated hydraulic setups.
The Sun Hydraulics DMDADPN728 (DMDADPN728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is engineered to handle a maximum operating pressure of 5000 psi (350 bar) and offers a flow capacity of up to 12 gpm (45 L/min). The DMDADPN728 features a fatigue-rated solenoid tube assembly suitable for demanding environments and high-pressure applications. One of the key attributes of this model is its closed transition between spool positions B and R, enhancing performance by providing faster and more consistent response times, especially beneficial in pilot control applications where capacity is less critical. The valve requires no minimum hydraulic pressure to operate, making it versatile across various hydraulic systems. Equipped with EPDM seals, the DMDADPN728 is specifically configured for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids which can damage the seals. The wet armature design ensures the working fluid surrounds the armature, although prolonged energization could affect fluid integrity due to heat exposure. This model also incorporates Sun's floating style construction which minimizes potential internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. The manual override feature, available in models with D or L control options, has a mechanical life expectancy of approximately 7,000 cycles and is intended for temporary actuation only. For maintenance and longevity, the interchangeable coils compatible with other Sun Series 1 solenoid products offer flexibility and ease of replacement. Each component of the DMDADPN728 has been crafted for durability and optimal performance in sophisticated hydraulic setups.
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 |
Show FAQ