SUN HYDRAULICS
DMDALRN528
$227.85 USD
- SUN HYDRAULICS
- Material:DMDALRN528
- Model:DMDA-LRN@528
- 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 DMDALRN528 (DMDALRN528) 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 features a robust design with a fatigue rating of 5000 psi (350 bar), making it suitable for demanding applications. The valve's spools, B and R, are closed during the transition between positions to enhance performance by ensuring faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. This model incorporates a wet armature design, allowing the working fluid to surround the armature which helps in cooling but requires consideration of fluid characteristics as some may degrade under prolonged exposure to heat. It is compatible with EPDM seals specifically for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. The DMDALRN528 offers interchangeability with other Sun Series 1 solenoid products regarding its coils, which can be mounted in either direction on the tube. It also features Sun's floating style construction that minimizes internal parts binding\u2014a common issue arising from excessive installation torque or variations in cavity/cartridge machining. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 12 gpm (45 L/min), and rapid response times typically around 50 ms. The manual override mechanism provided has a mechanical life expectancy of approximately 7,000 cycles and requires minimal force for operation. This model is engineered for ease of installation and maintenance while providing reliable performance across various hydraulic applications.
The Sun Hydraulics DMDALRN528 (DMDALRN528) 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 features a robust design with a fatigue rating of 5000 psi (350 bar), making it suitable for demanding applications. The valve's spools, B and R, are closed during the transition between positions to enhance performance by ensuring faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. This model incorporates a wet armature design, allowing the working fluid to surround the armature which helps in cooling but requires consideration of fluid characteristics as some may degrade under prolonged exposure to heat. It is compatible with EPDM seals specifically for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. The DMDALRN528 offers interchangeability with other Sun Series 1 solenoid products regarding its coils, which can be mounted in either direction on the tube. It also features Sun's floating style construction that minimizes internal parts binding\u2014a common issue arising from excessive installation torque or variations in cavity/cartridge machining. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 12 gpm (45 L/min), and rapid response times typically around 50 ms. The manual override mechanism provided has a mechanical life expectancy of approximately 7,000 cycles and requires minimal force for operation. This model is engineered for ease of installation and maintenance while providing reliable performance across various hydraulic applications.
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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