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SUN HYDRAULICS
DNDASUV712N


$188.14 USD
  • SUN HYDRAULICS
  • Material:DNDASUV712N
  • Model:DNDA-SUV@712N
  • 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 DNDASUV712N (DNDASUV712N) is a solenoid-operated 4-way, 2-position cartridge valve featuring a direct-acting, balanced spool with a soft shift capability. This soft shift feature is designed to minimize system shock during valve actuation, making it suitable for applications where sudden pressure changes could be problematic. However, it's important to note that the soft shift capability results in slower response times compared to standard solenoid valves, with typical response times ranging from 150 ms to 300 ms depending on factors like flow, pressure, and oil viscosity. The valve also includes a push-type manual override control for added flexibility in operation. The DNDASUV712N is constructed with a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar). It employs a wet armature design, meaning that the working fluid surrounds the armature and can be affected by heat generated during prolonged coil energization. The valve's magnetic design ensures high efficiency and reliable shifting performance. Additionally, the Sun floating style construction minimizes the risk of internal part binding due to installation torque or machining variations. For environmental protection, coil connector options are available with ratings up to IP69K. The valve has a capacity of 4 gpm (15 L/min) and features minimal leakage under specified conditions. Installation requires specific torque settings between 30 - 35 lbf ft (41 - 47 Nm), and it uses Viton seals for durability under various operating conditions.

This solenoid-operated 4-way, 2-position cartridge is a direct-acting, balanced spool directional valve with a soft shift feature. The soft shift feature greatly reduces system shock due to valve actuation.

  • 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 dependant 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.
  • 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-31A
Series 1
Capacity 4 gpm15 L/min.
Maximum Operating Pressure 5000 psi350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 10 in³/min.@3000 psi160 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: 990-431-006

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