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SUN HYDRAULICS
DMDAMPN748


$204.02 USD
  • SUN HYDRAULICS
  • Material:DMDAMPN748
  • Model:DMDA-MPN@748
  • 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 DMDAMPN748 (DMDAMPN748) is a high-performance solenoid-operated 3-way, 2-position cartridge valve that features direct-acting, balanced spool directional control. Designed for robust fluid power applications, this valve operates without requiring a minimum hydraulic pressure, enhancing its versatility in various system configurations. The DMDAMPN748 is fatigue rated for 5000 psi (350 bar), ensuring durability and reliability under high-pressure conditions. Engineered for precision and efficiency, the valve showcases closed transitions between its two positions (Spools B and R), which are particularly beneficial when used as pilot controls. This design attribute allows for faster and more consistent response times, although it does come at the cost of lower capacity. The valve's wet armature design means that the working fluid surrounds the armature; this necessitates consideration of the type of fluid used due to potential heat exposure from prolonged coil energization. For manual override operations, the DMDAMPN748 can be equipped with D or L control options where the detent mechanism supports temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. The valve also supports interchangeable coils with other Sun Series 1 solenoid products and incorporates a floating style construction to minimize internal parts binding caused by installation variances or machining discrepancies. This model is compatible with EPDM seals for systems using phosphate ester fluids but should avoid contact with petroleum-based fluids which can damage the seals. With a maximum flow capacity of 12 gpm (45 L/min) and swift response times typically around 50 ms, this valve ensures efficient operation across a broad range of industrial applications.

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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