SUN HYDRAULICS
DMDALAV828
$239.07 USD
- SUN HYDRAULICS
- Material:DMDALAV828
- Model:DMDA-LAV@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 DMDALAV828 (DMDALAV828) is a solenoid-operated 3-way, 2-position cartridge valve that exemplifies high performance in hydraulic systems. This direct-acting, balanced spool directional valve is designed to operate seamlessly without requiring a minimum hydraulic pressure, enhancing its flexibility across various applications. It features a robust solenoid tube assembly rated for fatigue at 5000 psi (350 bar), ensuring durability and reliability even under demanding conditions. The DMDALAV828 valve is particularly noted for its closed transitions between Spools B and R, which restrict capacity but significantly elevate performance limits, making it ideal for pilot control applications where rapid and consistent response times are critical. Additionally, the valve incorporates a manual override with a detent mechanism intended for temporary actuation, with an estimated mechanical life expectancy of approximately 7,000 cycles. Equipped to handle phosphate ester fluids through its EPDM seals configuration, this valve must avoid exposure to petroleum-based substances to prevent seal damage. The wet armature design of the DMDALAV828 helps in heat management around the coil but requires consideration regarding the type of fluid used due to potential breakdowns when exposed to high temperatures over extended periods. This model also offers interchangeability of coils with other Sun Series 1 solenoid products and features the innovative Sun floating style construction that minimizes internal part binding caused by installation torque or cavity/cartridge machining variations. With a maximum operating pressure of 5000 psi (350 bar) and capacity up to 12 gpm (45 L/min), along with swift typical response times of around 50 ms, the DMDALAV828 is engineered for both reliability and high efficiency in controlling fluid power in various hydraulic setups.
The Sun Hydraulics DMDALAV828 (DMDALAV828) is a solenoid-operated 3-way, 2-position cartridge valve that exemplifies high performance in hydraulic systems. This direct-acting, balanced spool directional valve is designed to operate seamlessly without requiring a minimum hydraulic pressure, enhancing its flexibility across various applications. It features a robust solenoid tube assembly rated for fatigue at 5000 psi (350 bar), ensuring durability and reliability even under demanding conditions. The DMDALAV828 valve is particularly noted for its closed transitions between Spools B and R, which restrict capacity but significantly elevate performance limits, making it ideal for pilot control applications where rapid and consistent response times are critical. Additionally, the valve incorporates a manual override with a detent mechanism intended for temporary actuation, with an estimated mechanical life expectancy of approximately 7,000 cycles. Equipped to handle phosphate ester fluids through its EPDM seals configuration, this valve must avoid exposure to petroleum-based substances to prevent seal damage. The wet armature design of the DMDALAV828 helps in heat management around the coil but requires consideration regarding the type of fluid used due to potential breakdowns when exposed to high temperatures over extended periods. This model also offers interchangeability of coils with other Sun Series 1 solenoid products and features the innovative Sun floating style construction that minimizes internal part binding caused by installation torque or cavity/cartridge machining variations. With a maximum operating pressure of 5000 psi (350 bar) and capacity up to 12 gpm (45 L/min), along with swift typical response times of around 50 ms, the DMDALAV828 is engineered for both reliability and high efficiency in controlling fluid power in various 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 |
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