SUN HYDRAULICS
DMDAMAN828
$201.34 USD
- SUN HYDRAULICS
- Material:DMDAMAN828
- Model:DMDA-MAN@828
- 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 DMDAMAN828 (DMDAMAN828) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust and precise hydraulic control. This direct-acting, balanced spool directional valve ensures reliable operation with no minimum hydraulic pressure required. Its construction features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), making it suitable for demanding applications. The valve incorporates closed transitions between spool positions B and R, enhancing performance by ensuring faster and more consistent response times ideal for pilot control applications where capacity is less critical. The wet armature design of the valve allows the working fluid to surround the armature, which is beneficial for heat dissipation but requires careful consideration of fluid selection to avoid breakdown and varnish formation. For manual override operations, the DMDAMAN828 includes a detent mechanism designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. It also features interchangeable coils with other Sun Series 1 solenoid products, offering flexibility in maintenance and configuration. Equipped with EPDM seals, this cartridge is specifically configured for use with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The overall design minimizes internal part binding thanks to Sun's floating style construction which accommodates variations in installation torque and machining. This model's specifications include a flow capacity of up to 12 gpm (45 L/min), quick response times typically around 50 ms, and maximum operational pressure limits maintaining tight control over leakage. With its compact size and detailed engineering tailored towards efficiency and longevity under high-pressure conditions, the DMDAMAN828 serves as an essential component in sophisticated hydraulic systems requiring precise flow direction control.
The Sun Hydraulics DMDAMAN828 (DMDAMAN828) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust and precise hydraulic control. This direct-acting, balanced spool directional valve ensures reliable operation with no minimum hydraulic pressure required. Its construction features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), making it suitable for demanding applications. The valve incorporates closed transitions between spool positions B and R, enhancing performance by ensuring faster and more consistent response times ideal for pilot control applications where capacity is less critical. The wet armature design of the valve allows the working fluid to surround the armature, which is beneficial for heat dissipation but requires careful consideration of fluid selection to avoid breakdown and varnish formation. For manual override operations, the DMDAMAN828 includes a detent mechanism designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. It also features interchangeable coils with other Sun Series 1 solenoid products, offering flexibility in maintenance and configuration. Equipped with EPDM seals, this cartridge is specifically configured for use with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The overall design minimizes internal part binding thanks to Sun's floating style construction which accommodates variations in installation torque and machining. This model's specifications include a flow capacity of up to 12 gpm (45 L/min), quick response times typically around 50 ms, and maximum operational pressure limits maintaining tight control over leakage. With its compact size and detailed engineering tailored towards efficiency and longevity under high-pressure conditions, the DMDAMAN828 serves as an essential component in sophisticated hydraulic systems requiring precise flow direction control.
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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