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SUN HYDRAULICS
DMDASNN512


$158.45 USD
  • SUN HYDRAULICS
  • Material:DMDASNN512
  • Model:DMDA-SNN@512
  • Summary:Cartridge

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***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 DMDASNN512 (DMDASNN512) is a solenoid-operated 3-way, 2-position cartridge valve designed for efficient directional control in hydraulic systems. This direct-acting, balanced spool valve features a soft shift option to mitigate the hydraulic shock typically associated with valve actuation. While enhancing machine longevity by reducing system shocks, this soft shift model should not be solely relied upon in applications requiring precise timing control, such as those needing accurate ramping or timing adjustments. The valve's response time varies from 150 ms to 300 ms depending on several factors including flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. It is crucial that port 1 maintains positive pressure to ensure consistent performance of the soft shift feature. Additionally, the DMDASNN512 includes a push-type manual override control which is not compatible with weatherized coils but can be modified with other manual controls in the field if necessary. Constructed with durability in mind, the solenoid tube assembly of this valve is fatigue rated for up to 5000 psi (350 bar). The wet armature design allows the working fluid to surround the armature which may be a consideration if the coil remains energized over extended periods due to potential breakdowns of certain fluids at high temperatures. Furthermore, EPDM seals are utilized specifically for systems employing phosphate ester fluids; exposure to petroleum-based substances will damage these seals. This model also boasts high efficiency due to its unique magnetic design which provides strong spool actuating force per watt expended. Additional features include an IP69K rating for coil connector options and enhanced environmental protection with available weatherized coils and kits. The floating style construction of the cartridge minimizes internal part binding which could result from installation torque or variations in cavity/cartridge machining. With a maximum operating pressure of 5000 psi and a flow capacity of up to 5 gpm (20 L/min), Sun Hydraulics' DMDASNN512 offers robust performance for various hydraulic applications requiring reliable and controlled fluid direction.

This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool directional valve.

  • The soft shift cartridge is interchangeable with the standard cartridge, however, the performance limits are lower.
  • The soft shift feature can greatly reduce shock due to valve actuation but should not be counted upon in applications where timing is critical. If you need accurate ramping or timing control, consider Sun's electro-proportional valves.
  • The soft shift feature results in significant increase in response time over Sun's standard solenoid. Response time is dependent on flow, pressure, coil voltage, oil viscosity and ambient temperature. Typical response time ranges from 150 ms to 300 ms.
  • For consistent soft shift performance, port 1 should be at a positive pressure.
  • This valve includes a push-type manual override control. Other manual control options such as T or D, cannot be ordered with the soft shift control but can be installed easily in the field. See Twist/Lock Manual Override link above for details. Please note: Manual override functionality is not compatible with weatherized coils.
  • The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
  • 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.
  • The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
  • Coil connector options offer ratings up to IP69K. See individual coil product pages for details. Additional weatherized coils and kits are available for more complete environmental protection.
  • 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 5 gpm20 L/min.
Maximum Operating Pressure 5000 psi350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 5 in³/min.@3000 psi80 cc/min.@210 bar
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

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