SUN HYDRAULICS
DMDALPN748
$233.81 USD
- SUN HYDRAULICS
- Material:DMDALPN748
- Model:DMDA-LPN@748
- 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 DMDALPN748 (DMDALPN748) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is specifically designed for robust hydraulic systems, featuring a fatigue rating for 5000 psi (350 bar) service. The valve incorporates a closed transition between Spools B and R, optimizing performance by providing faster and more consistent response times in applications where capacity is less critical. This model's direct actuation does not require a minimum hydraulic pressure to operate, making it highly effective in various control applications. It also includes manual override options with the D or L control having a detent mechanism designed for temporary actuation. The mechanical life expectancy of the manual control assembly (D, L, and T types) stands at approximately 7,000 cycles. Configured with EPDM seals, the DMDALPN748 is suitable for systems using phosphate ester fluids while being incompatible with petroleum-based fluids which could damage the seals. Its wet armature design allows the working fluid to surround the armature; however, care must be taken as prolonged energization can lead to fluid breakdown due to heat exposure. Sun Hydraulics has designed this model with interchangeable coils from their Series 1 solenoid products that can be mounted in either direction on the tube. Additionally, it features Sun\u2019s floating style construction which minimizes internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. This makes the DMDALPN748 an adaptable solution suitable for various high-pressure hydraulic applications requiring precise control and reliability.
The Sun Hydraulics DMDALPN748 (DMDALPN748) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is specifically designed for robust hydraulic systems, featuring a fatigue rating for 5000 psi (350 bar) service. The valve incorporates a closed transition between Spools B and R, optimizing performance by providing faster and more consistent response times in applications where capacity is less critical. This model's direct actuation does not require a minimum hydraulic pressure to operate, making it highly effective in various control applications. It also includes manual override options with the D or L control having a detent mechanism designed for temporary actuation. The mechanical life expectancy of the manual control assembly (D, L, and T types) stands at approximately 7,000 cycles. Configured with EPDM seals, the DMDALPN748 is suitable for systems using phosphate ester fluids while being incompatible with petroleum-based fluids which could damage the seals. Its wet armature design allows the working fluid to surround the armature; however, care must be taken as prolonged energization can lead to fluid breakdown due to heat exposure. Sun Hydraulics has designed this model with interchangeable coils from their Series 1 solenoid products that can be mounted in either direction on the tube. Additionally, it features Sun\u2019s floating style construction which minimizes internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. This makes the DMDALPN748 an adaptable solution suitable for various high-pressure hydraulic applications requiring precise control and reliability.
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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