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SUN HYDRAULICS
DMDALPN71299


$246.02 USD
  • SUN HYDRAULICS
  • Material:DMDALPN71299
  • Model:DMDA-LPN@71299
  • Summary:Cartridge

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***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 DMDALPN71299 (DMDALPN71299) is a high-performance solenoid-operated 3-way, 2-position cartridge valve, designed for direct-acting operation with a balanced spool. This valve does not require a minimum hydraulic pressure to function, making it versatile for various applications. It features a fatigue-rated solenoid tube assembly suitable for up to 5000 psi (350 bar), ensuring durability and reliability in demanding environments. The DMDALPN71299 model is particularly noted for its closed transition spools B and R, which enhance performance by providing faster and more consistent response times especially in pilot control applications where capacity is less critical. The manual override feature on models with the D or L control uses a detent mechanism intended for temporary actuation, with a mechanical life expectancy of approximately 7,000 cycles. This valve is equipped with EPDM seals optimized for use with phosphate ester fluids; however, exposure to petroleum-based fluids can damage these seals. Its wet armature design allows the working fluid to surround the armature which could be susceptible to heat during prolonged energization\u2014this aspect should be considered when using certain fluids like water-glycol mixtures that may degrade under high temperatures. Additional features include interchangeable coils compatible with other Sun Series 1 solenoid products, and a floating style construction that minimizes internal parts binding due to installation torque or machining variations of cavity/cartridge. The valve supports a maximum flow capacity of 12 gpm (45 L/min) and has quick response times typically around 50 ms. With its robust construction and versatile design elements, the Sun Hydraulics DMDALPN71299 offers reliable performance for hydraulic system applications requiring precise control of fluid direction and flow.

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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