SUN HYDRAULICS
DMDASNN297
$192.50 USD
- SUN HYDRAULICS
- Material:DMDASNN297
- Model:DMDA-SNN@297
- 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 DMDASNN297 (DMDASNN297) is a solenoid-operated 3-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. This model is particularly noted for its soft shift capability, which helps to mitigate shock from valve actuation. Although it enhances the smooth transition during operation, it is not suitable for applications where precise timing control is critical. For such needs, electro-proportional valves are recommended. Engineered for versatility and reliability, the DMDASNN297 incorporates a wet armature design allowing the working fluid to surround the armature. This design aspect is crucial as it influences the temperature of the fluid, especially under long energizing periods which may degrade certain fluid types like water-glycol mixtures. The valve's solenoid construction is optimized for high efficiency, providing robust spool actuating force per watt expended which ensures consistent and reliable valve shifting. This model boasts an impressive fatigue rating for its solenoid tube assembly at 5000 psi (350 bar), making it suitable for high-pressure applications. It also features manual override functionality with a push-type control, although this feature is incompatible with weatherized coils. The unit supports various coil connector options rated up to IP69K for enhanced environmental protection against dust and moisture ingress. With a maximum flow capacity of 5 gpm (20 L/min) and maximum operating pressure of 5000 psi (350 bar), the DMDASNN297 is designed to handle demanding operational conditions efficiently. Its construction follows Sun\u2019s floating style to reduce risks associated with internal parts binding due to installation torque or machining variations in cavity/cartridge spaces. This model uses EPDM seals configured specifically for systems with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. Overall, the Sun Hydraulics DMDASNN297 offers a combination of high performance and durability, suited for various hydraulic applications requiring reliable directional control and moderate flow handling capabilities.
The Sun Hydraulics DMDASNN297 (DMDASNN297) is a solenoid-operated 3-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. This model is particularly noted for its soft shift capability, which helps to mitigate shock from valve actuation. Although it enhances the smooth transition during operation, it is not suitable for applications where precise timing control is critical. For such needs, electro-proportional valves are recommended. Engineered for versatility and reliability, the DMDASNN297 incorporates a wet armature design allowing the working fluid to surround the armature. This design aspect is crucial as it influences the temperature of the fluid, especially under long energizing periods which may degrade certain fluid types like water-glycol mixtures. The valve's solenoid construction is optimized for high efficiency, providing robust spool actuating force per watt expended which ensures consistent and reliable valve shifting. This model boasts an impressive fatigue rating for its solenoid tube assembly at 5000 psi (350 bar), making it suitable for high-pressure applications. It also features manual override functionality with a push-type control, although this feature is incompatible with weatherized coils. The unit supports various coil connector options rated up to IP69K for enhanced environmental protection against dust and moisture ingress. With a maximum flow capacity of 5 gpm (20 L/min) and maximum operating pressure of 5000 psi (350 bar), the DMDASNN297 is designed to handle demanding operational conditions efficiently. Its construction follows Sun\u2019s floating style to reduce risks associated with internal parts binding due to installation torque or machining variations in cavity/cartridge spaces. This model uses EPDM seals configured specifically for systems with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. Overall, the Sun Hydraulics DMDASNN297 offers a combination of high performance and durability, suited for various hydraulic applications requiring reliable directional control and moderate flow handling capabilities.
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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