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SUN HYDRAULICS
DNCALBV297


$214.45 USD
  • SUN HYDRAULICS
  • Material:DNCALBV297
  • Model:DNCA-LBV@297
  • 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 DNCALBV297 (DNCALBV297) is a high-performance, solenoid-operated, 4-way, 2-position cartridge valve that provides efficient control in hydraulic systems. Designed with a balanced spool and featuring a closed transition between positions, this valve minimizes oil loss during shifting, making it particularly suitable for pilot control circuits. Its construction allows for direct actuation without the need for minimum hydraulic pressure, enhancing its responsiveness and reliability in various applications. This model boasts a robust design with a fatigue rating of 5000 psi (350 bar) for the solenoid tube assembly, ensuring durability under demanding conditions. The DNCALBV297 is configured to handle phosphate ester fluids when equipped with EPDM seals; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. The wet armature design of the valve allows the working fluid to surround the armature which is beneficial but requires consideration regarding fluid type due to potential heat exposure from prolonged coil energization. Additionally, the DNCALBV297 offers flexibility in terms of coil configurations and voltage options, including models with surge protection. It supports a variety of coil termination options rated up to IP69K for enhanced environmental protection. The interchangeability of coils with other Sun Series 1 solenoid products adds to its versatility. This model also incorporates Sun\u2019s floating style construction which helps prevent internal parts from binding due to installation or machining variations. Technical specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity at 8 gpm (30 L/min), and typical response times of 50 ms. It also features manual override capabilities and supports switching frequencies up to 15000 cycles per hour. With its comprehensive design and robust performance features, the DNCALBV297 is an excellent choice for sophisticated hydraulic system applications requiring precise control and reliability.

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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