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

SUN HYDRAULICS
DMDATNN812


$227.45 USD
  • SUN HYDRAULICS
  • Material:DMDATNN812
  • Model:DMDA-TNN@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 DMDATNN812 (DMDATNN812) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve that excels in various hydraulic applications. Designed as a direct-acting, balanced spool directional valve, it features a robust solenoid tube assembly rated for fatigue at 5000 psi (350 bar), making it suitable for high-pressure environments. The valve is distinct for its closed transition between Spools B and R, enhancing performance by ensuring faster and more consistent response times during operation. This attribute makes the DMDATNN812 particularly effective when used as pilot controls where capacity is less critical. This model does not require minimum hydraulic pressure to function and incorporates an optional manual override with a detent mechanism designed for temporary actuation. With an impressive mechanical life expectancy of approximately 7,000 cycles for models equipped with the D, L, or T manual control assembly, it promises durability and reliability. The valve's wet armature design allows the working fluid to surround the armature, which is beneficial but requires consideration regarding fluid type due to potential heat exposure effects. The DMDATNN812 can accommodate a flow capacity of up to 12 gpm (45 L/min) and supports a maximum operating pressure of 5000 psi (350 bar). It also boasts quick response times typically around 50 ms and maintains low leakage rates. Suitable for systems using phosphate ester fluids with EPDM seals, this model ensures compatibility while preventing damage from petroleum-based substances. Additional features include interchangeable coils with other Sun Series 1 solenoid products and a floating style construction that minimizes internal parts binding\u2014further evidence of its thoughtful engineering tailored for demanding hydraulic systems.

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