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SUN HYDRAULICS
DNCADWN298


$209.48 USD
  • SUN HYDRAULICS
  • Material:DNCADWN298
  • Model:DNCA-DWN@298
  • 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 DNCADWN298 (DNCADWN298) is a high-performance, solenoid-operated, 4-way, 2-position cartridge valve designed for robust and efficient control in hydraulic systems. This direct-acting, balanced spool directional valve ensures a closed transition between positions, minimizing oil loss during shifting which is crucial for maintaining the integrity of pilot control circuits. The valve features a unique configuration where port 3 serves as the inlet and port 1 as the tank outlet, although it supports reverse flow with noted limitations on performance. Constructed to handle a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of up to 8 gpm (30 L/min), the DNCADWN298 is equipped with EPDM seals suitable for phosphate ester fluids; however, these seals are vulnerable to damage from exposure to petroleum-based fluids. Its solenoid tube assembly is fatigue rated for high-pressure service, ensuring durability and reliability under rigorous conditions. The DNCADWN298 incorporates advanced design elements such as a wet armature setup where the working fluid surrounds the armature. This design consideration is vital when the coil is energized for extended periods, potentially affecting fluid integrity in certain conditions like those involving water-glycol mixtures. Additionally, this model offers an array of coil termination and voltage options, including configurations with surge protection and various environmental shielding choices to suit diverse operational environments. This model also benefits from Sun Hydraulics' floating style construction which reduces risks associated with internal parts binding due to installation issues or cavity/cartridge machining discrepancies. With interchangeable coils compatible with other Sun Series 1 solenoid products and multiple connector options that meet up to IP69K standards, the DNCADWN298 provides flexible solutions tailored to meet stringent application requirements effectively.

This solenoid-operated, 4-way, 2-position cartridge is a direct-acting, balanced spool directional valve. The transition between positions is closed. The closed transition greatly reduces the loss of oil when shifting which can be of particular importance in pilot control circuits.

  • Valve capacity is based on port 3 as the inlet and port 1 as the tank. Although reverse flow is possible, the same performance cannot be guaranteed and is not recommended.
  • 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.
  • 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.
  • 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 8 gpm30 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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