SUN HYDRAULICS
DMDALNN712N
$223.68 USD
- SUN HYDRAULICS
- Material:DMDALNN712N
- Model:DMDA-LNN@712N
- 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 DMDALNN712N (DMDALNN712N) is a high-performance solenoid-operated 3-way, 2-position cartridge valve, designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve is optimized for robust performance with a fatigue rating of 5000 psi (350 bar), making it suitable for demanding applications. The valve features closed transitions between Spools B and R, enhancing performance by ensuring faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. This model operates without requiring a minimum hydraulic pressure, facilitating its use in varied hydraulic circuits. It includes a manual override with a detent mechanism designed primarily for temporary actuation, and the manual control assembly (available in D, L, and T configurations) supports approximately 7,000 cycles of mechanical life. Additionally, the DMDALNN712N is equipped with EPDM seals intended specifically for systems using phosphate ester fluids; these seals must avoid exposure to petroleum-based substances to prevent damage. A notable feature of this valve is its wet armature design where the working fluid surrounds the armature that may be exposed to heat when the coil is energized continuously. This aspect demands consideration regarding fluid selection as some may degrade under prolonged heat exposure. The interchangeable coils compatible with other Sun Series 1 solenoid products offer flexibility in maintenance and replacement. With a maximum operating capacity of 12 gpm (45 L/min) and swift typical response times of around 50 ms, along with a robust build that incorporates Sun\u2019s floating style construction to minimize internal binding risks, the DMDALNN712N stands out as an efficient solution for advanced hydraulic system configurations requiring reliable directional control.
The Sun Hydraulics DMDALNN712N (DMDALNN712N) is a high-performance solenoid-operated 3-way, 2-position cartridge valve, designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve is optimized for robust performance with a fatigue rating of 5000 psi (350 bar), making it suitable for demanding applications. The valve features closed transitions between Spools B and R, enhancing performance by ensuring faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. This model operates without requiring a minimum hydraulic pressure, facilitating its use in varied hydraulic circuits. It includes a manual override with a detent mechanism designed primarily for temporary actuation, and the manual control assembly (available in D, L, and T configurations) supports approximately 7,000 cycles of mechanical life. Additionally, the DMDALNN712N is equipped with EPDM seals intended specifically for systems using phosphate ester fluids; these seals must avoid exposure to petroleum-based substances to prevent damage. A notable feature of this valve is its wet armature design where the working fluid surrounds the armature that may be exposed to heat when the coil is energized continuously. This aspect demands consideration regarding fluid selection as some may degrade under prolonged heat exposure. The interchangeable coils compatible with other Sun Series 1 solenoid products offer flexibility in maintenance and replacement. With a maximum operating capacity of 12 gpm (45 L/min) and swift typical response times of around 50 ms, along with a robust build that incorporates Sun\u2019s floating style construction to minimize internal binding risks, the DMDALNN712N stands out as an efficient solution for advanced hydraulic system configurations requiring reliable directional 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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