SUN HYDRAULICS
DMDATRV812
$237.10 USD
Tags:
- SUN HYDRAULICS
- Material:DMDATRV812
- Model:DMDA-TRV@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 DMDATRV812 (DMDATRV812) is a solenoid-operated 3-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. Engineered for high-performance applications, this valve operates with a maximum pressure of 5000 psi (350 bar) and has a typical response time of 50 ms. It is designed to handle up to 12 gpm (45 L/min) flow capacity, making it suitable for various hydraulic systems. The DMDATRV812 incorporates advanced features such as closed transitions between spools B and R to enhance performance by ensuring faster and more consistent response times during pilot control operations. The valve's wet armature design allows the working fluid to surround the armature, which is beneficial for heat dissipation but requires consideration of fluid type due to potential breakdown at high temperatures. This model employs EPDM seals specifically for use with phosphate ester fluids; however, these seals are susceptible to damage if exposed to petroleum-based fluids. For manual override operations, the valve includes a detent mechanism designed for temporary actuation with a mechanical life expectancy of around 7,000 cycles. Additional durability and ease of installation are provided through Sun\u2019s floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. The solenoid coils on this model are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube, offering flexibility in system design and maintenance. Overall, the DMDATRV812 is a robust and versatile component suitable for demanding hydraulic applications where precise fluid control is required.
The Sun Hydraulics DMDATRV812 (DMDATRV812) is a solenoid-operated 3-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. Engineered for high-performance applications, this valve operates with a maximum pressure of 5000 psi (350 bar) and has a typical response time of 50 ms. It is designed to handle up to 12 gpm (45 L/min) flow capacity, making it suitable for various hydraulic systems. The DMDATRV812 incorporates advanced features such as closed transitions between spools B and R to enhance performance by ensuring faster and more consistent response times during pilot control operations. The valve's wet armature design allows the working fluid to surround the armature, which is beneficial for heat dissipation but requires consideration of fluid type due to potential breakdown at high temperatures. This model employs EPDM seals specifically for use with phosphate ester fluids; however, these seals are susceptible to damage if exposed to petroleum-based fluids. For manual override operations, the valve includes a detent mechanism designed for temporary actuation with a mechanical life expectancy of around 7,000 cycles. Additional durability and ease of installation are provided through Sun\u2019s floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. The solenoid coils on this model are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube, offering flexibility in system design and maintenance. Overall, the DMDATRV812 is a robust and versatile component suitable for demanding hydraulic applications where precise fluid control is required.
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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