SUN HYDRAULICS
DMDALPV298
$272.22 USD
- SUN HYDRAULICS
- Material:DMDALPV298
- Model:DMDA-LPV@298
- 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 DMDALPV298 (DMDALPV298) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust and efficient hydraulic control. This direct-acting, balanced spool directional valve is particularly noted for its closed transition spools B and R, which enhance performance by ensuring faster and more consistent response times, ideal for applications where capacity is less critical. It operates without requiring a minimum hydraulic pressure, making it versatile across various hydraulic systems. The DMDALPV298 features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), making it suitable for high-pressure applications. The manual override option available in models with D or L control uses a detent mechanism designed primarily for temporary actuation with an estimated mechanical life of around 7,000 cycles. Additionally, the valve incorporates EPDM seals configured specifically for use with phosphate ester fluids; however, these seals must avoid exposure to petroleum-based fluids to prevent damage. With a maximum flow capacity of 12 gpm (45 L/min) and a typical response time of 50 ms, this valve ensures efficient fluid control. It supports a maximum switching frequency of 15,000 cycles per hour and features interchangeable coils compatible with other Sun Series 1 solenoid products. The wet armature design used in this model helps in cooling but requires consideration regarding the type of fluid used due to potential breakdown at high temperatures. Furthermore, the DMDALPV298 benefits from Sun's floating style construction which minimizes internal part binding caused by installation torque or machining variations of the cavity/cartridge. This design detail contributes to the overall reliability and longevity of the valve in demanding operational conditions.
The Sun Hydraulics DMDALPV298 (DMDALPV298) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust and efficient hydraulic control. This direct-acting, balanced spool directional valve is particularly noted for its closed transition spools B and R, which enhance performance by ensuring faster and more consistent response times, ideal for applications where capacity is less critical. It operates without requiring a minimum hydraulic pressure, making it versatile across various hydraulic systems. The DMDALPV298 features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), making it suitable for high-pressure applications. The manual override option available in models with D or L control uses a detent mechanism designed primarily for temporary actuation with an estimated mechanical life of around 7,000 cycles. Additionally, the valve incorporates EPDM seals configured specifically for use with phosphate ester fluids; however, these seals must avoid exposure to petroleum-based fluids to prevent damage. With a maximum flow capacity of 12 gpm (45 L/min) and a typical response time of 50 ms, this valve ensures efficient fluid control. It supports a maximum switching frequency of 15,000 cycles per hour and features interchangeable coils compatible with other Sun Series 1 solenoid products. The wet armature design used in this model helps in cooling but requires consideration regarding the type of fluid used due to potential breakdown at high temperatures. Furthermore, the DMDALPV298 benefits from Sun's floating style construction which minimizes internal part binding caused by installation torque or machining variations of the cavity/cartridge. This design detail contributes to the overall reliability and longevity of the valve in demanding operational conditions.
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 |
Show FAQ