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SUN HYDRAULICS
DMDAXNV928


$203.03 USD
  • SUN HYDRAULICS
  • Material:DMDAXNV928
  • Model:DMDA-XNV@928
  • Summary:Cartridge

Quantity in stock: 0

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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 DMDAXNV928 (DMDAXNV928) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust and precise control in hydraulic systems. It features a fatigue rating for 5000 psi (350 bar) service, ensuring durability and reliability under high-pressure conditions. The DMDAXNV928 incorporates closed transitions between Spools B and R, enhancing performance by providing faster and more consistent response times, particularly suitable for pilot controls where capacity is less critical. This valve operates without requiring a minimum hydraulic pressure, making it versatile for various applications. It includes options for manual override controls (D, L, T), designed primarily for temporary actuation with a mechanical life expectancy of around 7,000 cycles. The model also supports EPDM seals specifically for use with phosphate ester fluids; however, these seals are susceptible to damage when exposed to petroleum-based substances. Additionally, the DMDAXNV928 utilizes a wet armature design which helps in heat management but requires consideration of fluid compatibility as certain fluids may degrade under prolonged exposure to heat. This valve's design allows interchangeable coils with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. It also features Sun\u2019s floating style construction which minimizes internal part binding due to installation variances or machining discrepancies. With a maximum operating capacity of 12 gpm (45 L/min) and swift response times typically around 50 ms, this valve is an efficient choice for systems requiring precise flow management. The DMDAXNV928 is equipped to handle switching frequencies up to 15,000 cycles/hr and incorporates various safety and durability measures like maximum leakage control at high pressures and manual override specifications designed for ease of use under load 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

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