You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.

SUN HYDRAULICS
DMDALPV812


$241.35 USD
  • SUN HYDRAULICS
  • Material:DMDALPV812
  • Model:DMDA-LPV@812
  • Summary:Cartridge

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***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 DMDALPV812 (DMDALPV812) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control. This direct-acting, balanced spool directional valve operates without the need for minimum hydraulic pressure, enhancing its responsiveness and reliability in various applications. The valve features a fatigue-rated solenoid tube assembly capable of handling services up to 5000 psi (350 bar), making it suitable for demanding environments. With a maximum capacity of 12 gpm (45 L/min) and an exceptionally quick typical response time of 50 ms, the DMDALPV812 ensures efficient operation in systems requiring rapid directional changes. It incorporates closed transitions between spool positions B and R, which minimizes capacity but allows for faster and more consistent response times ideal for pilot control applications where capacity is less critical. The valve's construction includes EPDM seals specifically designed for use with phosphate ester fluids; however, these seals are vulnerable to damage from exposure to petroleum-based fluids. Its wet armature design allows the working fluid to surround the armature, potentially affecting performance if exposed to high temperatures over prolonged periods. Users should be cautious with fluid selection, especially avoiding water-glycol mixtures that may degrade at high temperatures. For ease of maintenance and versatility, the DMDALPV812's coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The valve also benefits from Sun's floating style construction which reduces the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations. Overall, the Sun Hydraulics DMDALPV812 offers robust performance and reliability for hydraulic systems requiring precise flow direction control under high-pressure conditions.

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

Show FAQ