SUN HYDRAULICS
DMDALNN299
$258.33 USD
- SUN HYDRAULICS
- Material:DMDALNN299
- Model:DMDA-LNN@299
- 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 DMDALNN299 (DMDALNN299) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. Designed for direct-acting operation, this balanced spool directional valve does not require a minimum hydraulic pressure to function effectively. It features a robust solenoid tube assembly that is fatigue rated for 5000 psi (350 bar) service, ensuring durability and reliability under high-pressure conditions. This model includes spools B and R that are closed during the transition between positions, enhancing performance limits while reducing capacity. This characteristic is particularly beneficial in applications where rapid and consistent response times are critical, such as in pilot control systems where capacity is less of an issue. The valve's manual override options, equipped with either D or L control, include a detent mechanism designed for temporary actuation with a mechanical life expectancy of around 7,000 cycles. The DMDALNN299 employs EPDM seals suitable for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they could be damaged. Additionally, the valve's wet armature design allows the working fluid to surround the armature which helps in heat management but requires consideration regarding fluid type as some may degrade under prolonged exposure to heat. Interchangeability of coils with other Sun Series 1 solenoid products adds versatility to this model, allowing for easy maintenance and replacement. The construction incorporates Sun's floating style design which minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With a maximum operating pressure of 5000 psi and a flow capacity of up to 12 gpm (45 L/min), the DMDALNN299 offers reliable performance for various hydraulic applications requiring precise control and fast response times.
The Sun Hydraulics DMDALNN299 (DMDALNN299) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. Designed for direct-acting operation, this balanced spool directional valve does not require a minimum hydraulic pressure to function effectively. It features a robust solenoid tube assembly that is fatigue rated for 5000 psi (350 bar) service, ensuring durability and reliability under high-pressure conditions. This model includes spools B and R that are closed during the transition between positions, enhancing performance limits while reducing capacity. This characteristic is particularly beneficial in applications where rapid and consistent response times are critical, such as in pilot control systems where capacity is less of an issue. The valve's manual override options, equipped with either D or L control, include a detent mechanism designed for temporary actuation with a mechanical life expectancy of around 7,000 cycles. The DMDALNN299 employs EPDM seals suitable for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they could be damaged. Additionally, the valve's wet armature design allows the working fluid to surround the armature which helps in heat management but requires consideration regarding fluid type as some may degrade under prolonged exposure to heat. Interchangeability of coils with other Sun Series 1 solenoid products adds versatility to this model, allowing for easy maintenance and replacement. The construction incorporates Sun's floating style design which minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With a maximum operating pressure of 5000 psi and a flow capacity of up to 12 gpm (45 L/min), the DMDALNN299 offers reliable performance for various hydraulic applications requiring precise control and fast response times.
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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