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SUN HYDRAULICS
DNDAXUN72419


$229.74 USD
  • SUN HYDRAULICS
  • Material:DNDAXUN72419
  • Model:DNDA-XUN@72419
  • 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 DNDAXUN72419 (DNDAXUN72419) is a solenoid-operated 4-way, 2-position cartridge valve characterized by its direct-acting, balanced spool design. It features a solenoid tube assembly fatigue-rated for up to 5000 psi (350 bar), ensuring durability and reliability in high-pressure applications. This valve requires no minimum hydraulic pressure to operate, making it versatile for various systems. It offers multiple manual override options, although compatibility with weatherized coils is limited. Models with D or L control have a detent mechanism intended for temporary actuation, with a mechanical life expectancy of around 7,000 cycles. The valve incorporates EPDM seals suitable for phosphate ester fluids but not compatible with petroleum-based substances. Its wet armature design allows the working fluid to absorb heat generated by the coil; however, prolonged energization may lead to fluid degradation in certain mixtures like water-glycol. This high-efficiency solenoid design provides substantial spool actuating force per watt expended, ensuring dependable valve shifting. The cartridges are compatible with various coil termination and voltage options, including surge protection features and IP69K-rated coil connectors for enhanced environmental protection. The interchangeable coils can be mounted in either direction on the tube and are consistent with other Sun Series 1 solenoid products. Additionally, the floating style construction minimizes internal part binding risks due to installation torque or machining variations. The valve's specifications include a T31A cavity size, Series 1 classification, and a capacity of up to 10 gpm (40 L/min). It has a typical response time of 50 ms and maximum leakage at specified conditions of 10 in\u00b3/min (160 cc/min). The switching frequency is rated at an impressive 15,000 cycles per hour. Installation requires specific torque values between 30-35 lbf ft (41-47 Nm), and its compact design weighs approximately .60 lb (.30 kg).

This solenoid-operated 4-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.
  • This valve is direct actuated and requires no minimum hydraulic pressure for operation.
  • This cartridge has several manual override choices, including no manual override. See the CONFIGURATION section. Please note: Manual override functionality is not compatible with weatherized coils.
  • 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 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.
  • A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
  • 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.
  • Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
  • 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 10 gpm40 L/min.
Maximum Operating Pressure 5000 psi350 bar
Response Time - Typical 50 ms50 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 10 in³/min.@3000 psi160 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: 990-431-006
Seal and nut kit - Coil Viton: 990-770-006Viton: 990-770-006

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