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SUN HYDRAULICS
DMDAMPV812N


$210.97 USD
  • SUN HYDRAULICS
  • Material:DMDAMPV812N
  • Model:DMDA-MPV@812N
  • 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 DMDAMPV812N (DMDAMPV812N) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust and efficient hydraulic control. This direct-acting, balanced spool directional valve operates without the need for a minimum hydraulic pressure, enhancing its versatility across a range of applications. The valve features fatigue-rated solenoid tube assemblies capable of handling pressures up to 5000 psi (350 bar), making it suitable for high-pressure systems. The DMDAMPV812N incorporates closed transitions between spool positions B and R, which minimizes capacity but significantly improves performance by offering faster and more consistent response times ideal for pilot control applications. The manual override options available with this model (D, L, and T controls) are designed with a detent mechanism meant for temporary operation, supporting a mechanical life expectancy of around 7,000 cycles. Equipped with EPDM seals, this valve is specifically configured for use with phosphate ester fluids; however, exposure to petroleum-based substances should be avoided as they can damage the seals. A notable feature of the DMDAMPV812N is its wet armature design where the working fluid directly cools the armature\u2014a critical consideration when dealing with long energizing periods that may affect fluid integrity. This model also benefits from interchangeable coils compatible with other Sun Series 1 solenoid products and can be installed in any direction on the tube. Additionally, Sun\u2019s floating style construction is employed to minimize internal part binding due to installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and swift typical response times of around 50 ms, the DMDAMPV812N is an adaptable solution designed to meet rigorous industrial demands efficiently.

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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