SUN HYDRAULICS
DMDALPN828
$237.08 USD
- SUN HYDRAULICS
- Material:DMDALPN828
- Model:DMDA-LPN@828
- 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 DMDALPN828 (DMDALPN828) is a high-performance solenoid-operated 3-way, 2-position cartridge valve, designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is notable for its fatigue-rated solenoid tube assembly which can handle services up to 5000 psi (350 bar). 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. Engineered for reliability, the DMDALPN828 requires no minimum hydraulic pressure to operate, making it versatile across various hydraulic systems. It includes manual override options with a detent mechanism designed for temporary actuation; the mechanical life expectancy of this manual control assembly reaches approximately 7,000 cycles. The valve is particularly suited to systems using phosphate ester fluids due to its EPDM seal configuration, while exposure to petroleum-based fluids should be avoided as it can damage the seals. The design incorporates a wet armature setup where the working fluid surrounds the armature\u2014this aspect needs consideration as prolonged coil energization could lead to fluid breakdown in certain conditions. Additionally, Sun Hydraulics has ensured that the coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The construction utilizes Sun's floating style to minimize internal parts binding caused by excessive installation torque or machining variations of cavity/cartridge. With a capacity of 12 gpm (45 L/min) and rapid typical response time of 50 ms, along with a maximum operating pressure of 5000 psi (350 bar), this valve is engineered to meet demanding hydraulic specifications and ensure efficient performance in tailored applications.
The Sun Hydraulics DMDALPN828 (DMDALPN828) is a high-performance solenoid-operated 3-way, 2-position cartridge valve, designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is notable for its fatigue-rated solenoid tube assembly which can handle services up to 5000 psi (350 bar). 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. Engineered for reliability, the DMDALPN828 requires no minimum hydraulic pressure to operate, making it versatile across various hydraulic systems. It includes manual override options with a detent mechanism designed for temporary actuation; the mechanical life expectancy of this manual control assembly reaches approximately 7,000 cycles. The valve is particularly suited to systems using phosphate ester fluids due to its EPDM seal configuration, while exposure to petroleum-based fluids should be avoided as it can damage the seals. The design incorporates a wet armature setup where the working fluid surrounds the armature\u2014this aspect needs consideration as prolonged coil energization could lead to fluid breakdown in certain conditions. Additionally, Sun Hydraulics has ensured that the coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The construction utilizes Sun's floating style to minimize internal parts binding caused by excessive installation torque or machining variations of cavity/cartridge. With a capacity of 12 gpm (45 L/min) and rapid typical response time of 50 ms, along with a maximum operating pressure of 5000 psi (350 bar), this valve is engineered to meet demanding hydraulic specifications and ensure efficient performance in tailored 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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