SUN HYDRAULICS
DMDAMRV812
$205.61 USD
- SUN HYDRAULICS
- Material:DMDAMRV812
- Model:DMDA-MRV@812
- 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 DMDAMRV812 (DMDAMRV812) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is notable for its robust construction and efficient operational capabilities. The DMDAMRV812 features a fatigue-rated solenoid tube assembly suitable for up to 5000 psi (350 bar), ensuring durability and reliability under high-pressure conditions. Its design incorporates closed transitions between spool positions B and R, optimizing performance by allowing faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. The valve operates without requiring a minimum hydraulic pressure, enhancing its versatility across various hydraulic applications. Additionally, it includes manual override options with a detent mechanism designed for temporary actuation, supporting up to approximately 7,000 cycles. The DMDAMRV812 is compatible with EPDM seals specifically for use with phosphate ester fluids; however, these seals must avoid exposure to petroleum-based substances to prevent damage. This model also employs a wet armature design where the working fluid surrounds the armature, which is critical in applications where the coil may be energized for extended periods. Care should be taken with fluid selection as some may degrade at higher temperatures. The valve supports a maximum flow capacity of 12 gpm (45 L/min) and incorporates interchangeable coils that are compatible with other Sun Series 1 solenoid products. It also features Sun's floating style construction which minimizes internal part binding due to installation variances or machining discrepancies. Overall, the Sun Hydraulics DMDAMRV812 offers an effective solution for directing flow in advanced hydraulic systems requiring precise control and high-pressure operation.
The Sun Hydraulics DMDAMRV812 (DMDAMRV812) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is notable for its robust construction and efficient operational capabilities. The DMDAMRV812 features a fatigue-rated solenoid tube assembly suitable for up to 5000 psi (350 bar), ensuring durability and reliability under high-pressure conditions. Its design incorporates closed transitions between spool positions B and R, optimizing performance by allowing faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. The valve operates without requiring a minimum hydraulic pressure, enhancing its versatility across various hydraulic applications. Additionally, it includes manual override options with a detent mechanism designed for temporary actuation, supporting up to approximately 7,000 cycles. The DMDAMRV812 is compatible with EPDM seals specifically for use with phosphate ester fluids; however, these seals must avoid exposure to petroleum-based substances to prevent damage. This model also employs a wet armature design where the working fluid surrounds the armature, which is critical in applications where the coil may be energized for extended periods. Care should be taken with fluid selection as some may degrade at higher temperatures. The valve supports a maximum flow capacity of 12 gpm (45 L/min) and incorporates interchangeable coils that are compatible with other Sun Series 1 solenoid products. It also features Sun's floating style construction which minimizes internal part binding due to installation variances or machining discrepancies. Overall, the Sun Hydraulics DMDAMRV812 offers an effective solution for directing flow in advanced hydraulic systems requiring precise control and high-pressure operation.
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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