SUN HYDRAULICS
DMDADAN812
$227.45 USD
- SUN HYDRAULICS
- Material:DMDADAN812
- Model:DMDA-DAN@812
- 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 DMDADAN812 (DMDADAN812) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for rigorous hydraulic applications. This direct-acting, balanced spool directional valve is engineered to operate effectively without minimum hydraulic pressure, making it versatile for various deployment scenarios. It features a fatigue rating of 5000 psi (350 bar), ensuring durability and reliability under high-pressure conditions. Key functionalities include closed transitions between Spools B and R, enhancing performance by providing faster and more consistent response times, particularly beneficial in pilot control setups where capacity is less critical. The valve's manual override is equipped with a detent mechanism intended for temporary actuation, boasting a mechanical life expectancy of about 7,000 cycles. The DMDADAN812 utilizes EPDM seals suitable for systems using phosphate ester fluids; however, these seals must avoid exposure to petroleum-based substances to prevent damage. Additionally, the wet armature design helps in heat management around the coil but requires consideration regarding fluid selection as some may degrade at higher temperatures. Interchangeability of coils with other Sun Series 1 solenoid products adds flexibility for system design and upgrades, while the floating style construction minimizes internal parts binding\u2014this feature safeguards against variations in installation torque and machining discrepancies. With capacities up to 12 gpm (45 L/min) and rapid response times typically at 50 ms, this model is an excellent choice for sophisticated hydraulic systems requiring precise control and robust operation.
The Sun Hydraulics DMDADAN812 (DMDADAN812) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for rigorous hydraulic applications. This direct-acting, balanced spool directional valve is engineered to operate effectively without minimum hydraulic pressure, making it versatile for various deployment scenarios. It features a fatigue rating of 5000 psi (350 bar), ensuring durability and reliability under high-pressure conditions. Key functionalities include closed transitions between Spools B and R, enhancing performance by providing faster and more consistent response times, particularly beneficial in pilot control setups where capacity is less critical. The valve's manual override is equipped with a detent mechanism intended for temporary actuation, boasting a mechanical life expectancy of about 7,000 cycles. The DMDADAN812 utilizes EPDM seals suitable for systems using phosphate ester fluids; however, these seals must avoid exposure to petroleum-based substances to prevent damage. Additionally, the wet armature design helps in heat management around the coil but requires consideration regarding fluid selection as some may degrade at higher temperatures. Interchangeability of coils with other Sun Series 1 solenoid products adds flexibility for system design and upgrades, while the floating style construction minimizes internal parts binding\u2014this feature safeguards against variations in installation torque and machining discrepancies. With capacities up to 12 gpm (45 L/min) and rapid response times typically at 50 ms, this model is an excellent choice for sophisticated hydraulic systems requiring precise control and robust operation.
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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