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SUN HYDRAULICS
DNCADLN812


$169.67 USD
  • SUN HYDRAULICS
  • Material:DNCADLN812
  • Model:DNCA-DLN@812
  • 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 DNCADLN812 (DNCADLN812) is a high-performance, solenoid-operated, 4-way, 2-position cartridge valve designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve ensures smooth transition between positions with a closed transition that minimizes oil loss during shifting, crucial for maintaining efficiency in pilot control circuits. It is particularly effective where minimal hydraulic pressure is available for operation. With a robust design that includes a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar), the DNCADLN812 is built to withstand demanding conditions. The valve's capacity is optimized with port 3 as the inlet and port 1 as the tank, although reverse flow is possible under certain conditions. It features EPDM seals specifically for use with phosphate ester fluids; however, these seals are vulnerable to damage if exposed to petroleum-based substances. This model incorporates advanced design elements such as a wet armature setup, where the working fluid surrounds the armature. This configuration can affect fluid integrity under prolonged energization due to heat exposure from the coil. The DNCADLN812 offers various coil termination and voltage options, including models with surge protection and IP69K-rated connectors for enhanced durability against environmental factors. Additionally, its unique magnetic design enhances solenoid efficiency, allowing higher actuating forces per watt expended and ensuring reliable valve operation. The interchangeability of coils with other Sun Series 1 solenoid products adds versatility to this unit. Sun Hydraulics has also engineered this model with floating style construction to reduce risks of internal parts binding due to installation or machining inconsistencies. The DNCADLN812's specifications include an operating pressure capacity up to 5000 psi (350 bar), a flow capacity of 8 gpm (30 L/min), and a rapid response time typical at 50 ms. Its manual override features require minimal force, making it user-friendly in manual operations scenarios. This makes the DNCADLN812 an ideal choice for sophisticated hydraulic applications requiring reliable performance and high durability.

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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