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SUN HYDRAULICS
DNDASLV612N


$184.76 USD
  • SUN HYDRAULICS
  • Material:DNDASLV612N
  • Model:DNDA-SLV@612N
  • 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 DNDASLV612N (DNDASLV612N) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control with an integrated soft shift feature. This feature significantly reduces system shock during valve actuation, making it suitable for applications where minimizing hydraulic shock is crucial. However, the soft shift performance may not be ideal for applications requiring precise timing control, as the response time is longer compared to Sun's standard solenoids, typically ranging from 150 ms to 300 ms depending on flow, pressure, coil voltage, oil viscosity, and ambient temperature. The valve incorporates a push-type manual override control for added flexibility in operation. It is important to note that manual override functionality does not support weatherized coils. The DNDASLV612N boasts a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar) service pressure and features a wet armature design that enhances efficiency by allowing the working fluid to surround the armature. This design consideration ensures high spool actuating force per watt expended and reliable valve shifting. However, users should be cautious of potential fluid breakdown at high temperatures over extended periods. Additionally, the cartridge employs Sun's floating style construction to minimize internal part binding due to excessive installation torque or cavity-cartridge machining variations. With a maximum capacity of 4 gpm (15 L/min), this valve fits into cavity T-31A and requires an installation torque of 30-35 lbf ft (41-47 Nm). It provides a maximum leakage rate of 10 in\u00b3/min at 110 SUS (24 cSt), making it efficient for various hydraulic systems. The product also offers coil connector options with ratings up to IP69K for enhanced environmental protection.

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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