SUN HYDRAULICS
DMDALRN299
$258.33 USD
- SUN HYDRAULICS
- Material:DMDALRN299
- Model:DMDA-LRN@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 DMDALRN299 (DMDALRN299) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. It features a direct-acting, balanced spool design that ensures reliable control in hydraulic systems. With a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of up to 12 gpm (45 L/min), this valve is designed to handle demanding applications. The DMDALRN299 incorporates closed transitions between spool positions B and R, enhancing performance by providing faster and more consistent response times, especially useful in pilot control applications where capacity is less critical. This model is equipped with EPDM seals suitable for systems using phosphate ester fluids, emphasizing its compatibility with specific hydraulic fluids while cautioning against the use of petroleum-based products which could damage the seals. The wet armature design allows the working fluid to surround the armature, which helps in cooling but requires consideration regarding fluid stability under prolonged exposure to heat. For ease of maintenance and versatility, the solenoid coils on this valve are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction. This feature simplifies replacement and reduces inventory needs for various equipment setups. Additionally, the DMDALRN299 benefits from Sun's floating style construction which minimizes internal part binding due to installation torque or machining variations of cavity/cartridge. Further enhancing its usability, this valve model includes manual override options with a detent mechanism designed for temporary actuation, supporting approximately 7,000 cycles. These characteristics make the DMDALRN299 an excellent choice for sophisticated hydraulic applications requiring robust performance and precise control.
The Sun Hydraulics DMDALRN299 (DMDALRN299) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. It features a direct-acting, balanced spool design that ensures reliable control in hydraulic systems. With a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of up to 12 gpm (45 L/min), this valve is designed to handle demanding applications. The DMDALRN299 incorporates closed transitions between spool positions B and R, enhancing performance by providing faster and more consistent response times, especially useful in pilot control applications where capacity is less critical. This model is equipped with EPDM seals suitable for systems using phosphate ester fluids, emphasizing its compatibility with specific hydraulic fluids while cautioning against the use of petroleum-based products which could damage the seals. The wet armature design allows the working fluid to surround the armature, which helps in cooling but requires consideration regarding fluid stability under prolonged exposure to heat. For ease of maintenance and versatility, the solenoid coils on this valve are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction. This feature simplifies replacement and reduces inventory needs for various equipment setups. Additionally, the DMDALRN299 benefits from Sun's floating style construction which minimizes internal part binding due to installation torque or machining variations of cavity/cartridge. Further enhancing its usability, this valve model includes manual override options with a detent mechanism designed for temporary actuation, supporting approximately 7,000 cycles. These characteristics make the DMDALRN299 an excellent choice for sophisticated hydraulic applications requiring robust performance and precise 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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