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SUN HYDRAULICS
DMDADBN648


$182.48 USD
  • SUN HYDRAULICS
  • Material:DMDADBN648
  • Model:DMDA-DBN@648
  • 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 DMDADBN648 (DMDADBN648) is a solenoid-operated 3-way, 2-position cartridge valve that features a direct-acting, balanced spool for directional control. This model is distinguished by its capability to handle a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of up to 12 gpm (45 L/min). The valve's quick response time of approximately 50 ms and its ability to switch up to 15,000 cycles per hour make it an efficient choice for various hydraulic applications. Designed with a wet armature setup, the DMDADBN648 ensures that the working fluid surrounds the armature, which is crucial in scenarios where the coil may be energized for extended periods. This design helps manage the heat generated but requires careful consideration of fluid selection as certain types can degrade under prolonged heat exposure. The valve also incorporates Sun\u2019s floating style construction which minimizes internal parts binding due to installation torque or machining variations. For systems using phosphate ester fluids, cartridges configured with EPDM seals are recommended; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. A notable feature includes interchangeable coils with other Sun Series 1 solenoid products which provide flexibility in maintenance and replacement processes. Each unit is built for durability with a mechanical life expectancy of about 7,000 cycles for models equipped with manual control assemblies (D, L, T types). This specific model also emphasizes ease of installation and operation adjustments through features like manual override capabilities requiring minimal force and standard Viton seals for enhanced performance under various operating conditions. The DMDADBN648's robust construction and versatile design make it suitable for applications requiring reliable directional control and rapid response times in demanding hydraulic environments.

This solenoid-operated 3-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.
  • Spools B and R are closed in the transition between their two positions. This results in a higher performance limit at the expense of lower capacity. When used as pilot controls, where capacity is not a factor, the closed transition will provide faster and more consistent response times.
  • This valve is direct actuated and requires no minimum hydraulic pressure for operation.
  • 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 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.
  • Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
  • 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-11A
Series 1
Capacity 12 gpm45 L/min.
Maximum Operating Pressure 5000 psi350 bar
Response Time - Typical 50 ms50 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 5 in³/min.@3000 psi80 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: 990-411-006
Seal and nut kit - Coil Viton: 990-770-006Viton: 990-770-006

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