SUN HYDRAULICS
DMDASNV812
$169.57 USD
- SUN HYDRAULICS
- Material:DMDASNV812
- Model:DMDA-SNV@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 DMDASNV812 (DMDASNV812) is a sophisticated solenoid-operated 3-way, 2-position cartridge valve designed for high-efficiency hydraulic systems. This direct-acting, balanced spool directional valve features a unique soft shift control that moderates the shock typically associated with valve actuation, making it ideal for applications sensitive to sudden movements or where shock reduction is critical. Despite its benefits in reducing system shocks, the soft shift model does have a slower response time compared to standard solenoids, with typical response times ranging from 150 ms to 300 ms depending on various operational conditions such as flow rate and oil viscosity. The valve boasts a manual override feature with a push-type control, enhancing flexibility and maintenance ease in field operations. However, it's important to note that certain manual override options are not compatible with soft shift controls but can be installed separately if needed. The construction of the DMDASNV812 includes a wet armature design where the working fluid surrounds the armature; this is crucial for understanding its operational environment as prolonged exposure to heat could affect performance. Designed to handle up to 5000 psi (350 bar), this valve is also fatigue rated for demanding applications. It offers minimal internal leakage and supports environmental sealing up to IP69K standards with specific coil connector options, making it suitable for harsh operating conditions. The floating style construction minimizes risks of internal parts binding due to installation errors or variations in machining, ensuring reliable and consistent performance. Overall, the Sun Hydraulics DMDASNV812 valve is engineered for reliability and precision in controlling fluid direction in hydraulic systems, providing both high performance and enhanced operational smoothness.
The Sun Hydraulics DMDASNV812 (DMDASNV812) is a sophisticated solenoid-operated 3-way, 2-position cartridge valve designed for high-efficiency hydraulic systems. This direct-acting, balanced spool directional valve features a unique soft shift control that moderates the shock typically associated with valve actuation, making it ideal for applications sensitive to sudden movements or where shock reduction is critical. Despite its benefits in reducing system shocks, the soft shift model does have a slower response time compared to standard solenoids, with typical response times ranging from 150 ms to 300 ms depending on various operational conditions such as flow rate and oil viscosity. The valve boasts a manual override feature with a push-type control, enhancing flexibility and maintenance ease in field operations. However, it's important to note that certain manual override options are not compatible with soft shift controls but can be installed separately if needed. The construction of the DMDASNV812 includes a wet armature design where the working fluid surrounds the armature; this is crucial for understanding its operational environment as prolonged exposure to heat could affect performance. Designed to handle up to 5000 psi (350 bar), this valve is also fatigue rated for demanding applications. It offers minimal internal leakage and supports environmental sealing up to IP69K standards with specific coil connector options, making it suitable for harsh operating conditions. The floating style construction minimizes risks of internal parts binding due to installation errors or variations in machining, ensuring reliable and consistent performance. Overall, the Sun Hydraulics DMDASNV812 valve is engineered for reliability and precision in controlling fluid direction in hydraulic systems, providing both high performance and enhanced operational smoothness.
This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool directional valve.
- The soft shift cartridge is interchangeable with the standard cartridge, however, the performance limits are lower.
- The soft shift feature can greatly reduce shock due to valve actuation but should not be counted upon in applications where timing is critical. If you need accurate ramping or timing control, consider Sun's electro-proportional valves.
- The soft shift feature results in significant increase in response time over Sun's standard solenoid. Response time is dependent on flow, pressure, coil voltage, oil viscosity and ambient temperature. Typical response time ranges from 150 ms to 300 ms.
- For consistent soft shift performance, port 1 should be at a positive pressure.
- This valve includes a push-type manual override control. Other manual control options such as T or D, cannot be ordered with the soft shift control but can be installed easily in the field. See Twist/Lock Manual Override link above for details. Please note: Manual override functionality is not compatible with weatherized coils.
- The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
- 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.
- The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details. Additional weatherized coils and kits are available for more complete environmental protection.
- 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 | 5 gpm20 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.@3000 psi80 cc/min.@210 bar |
| 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 |
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