SUN HYDRAULICS
DMDAMRV812N
$205.01 USD
- SUN HYDRAULICS
- Material:DMDAMRV812N
- Model:DMDA-MRV@812N
- Summary:Cartridge
Quantity in stock: 0
***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 DMDAMRV812N (DMDAMRV812N) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic fluid direction control in various applications. This direct-acting, balanced spool directional valve features a fatigue rating of 5000 psi (350 bar), making it suitable for high-pressure operations. The spool transitions between positions B and R are closed, enhancing performance by providing faster and more consistent response times, especially useful in pilot control applications where capacity is less critical. The DMDAMRV812N operates without the need for minimum hydraulic pressure, allowing for flexible installation and usage across different systems. It includes options for manual override controls (D, L, T types), which are primarily intended for temporary actuation with a mechanical life expectancy of around 7,000 cycles. The valve is equipped with EPDM seals appropriate for systems using phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. This model also incorporates a wet armature design where the working fluid surrounds the armature; this is an important consideration as prolonged energization can lead to fluid degradation at higher temperatures. The interchangeable coils with other Sun Series 1 solenoid products add to its versatility and ease of maintenance. Additionally, its floating style construction minimizes internal binding risks caused by excessive installation torque or machining variations in cavity/cartridge setups. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response times of 50 ms, and a maximum operating pressure capability of 5000 psi (350 bar). The compact design weighs only 0.60 lb (0.30 kg), facilitating ease of handling and installation in space-constrained environments.
The Sun Hydraulics DMDAMRV812N (DMDAMRV812N) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic fluid direction control in various applications. This direct-acting, balanced spool directional valve features a fatigue rating of 5000 psi (350 bar), making it suitable for high-pressure operations. The spool transitions between positions B and R are closed, enhancing performance by providing faster and more consistent response times, especially useful in pilot control applications where capacity is less critical. The DMDAMRV812N operates without the need for minimum hydraulic pressure, allowing for flexible installation and usage across different systems. It includes options for manual override controls (D, L, T types), which are primarily intended for temporary actuation with a mechanical life expectancy of around 7,000 cycles. The valve is equipped with EPDM seals appropriate for systems using phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. This model also incorporates a wet armature design where the working fluid surrounds the armature; this is an important consideration as prolonged energization can lead to fluid degradation at higher temperatures. The interchangeable coils with other Sun Series 1 solenoid products add to its versatility and ease of maintenance. Additionally, its floating style construction minimizes internal binding risks caused by excessive installation torque or machining variations in cavity/cartridge setups. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response times of 50 ms, and a maximum operating pressure capability of 5000 psi (350 bar). The compact design weighs only 0.60 lb (0.30 kg), facilitating ease of handling and installation in space-constrained 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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