SUN HYDRAULICS
DMDASNN299
$193.90 USD
Tags:
- SUN HYDRAULICS
- Material:DMDASNN299
- Model:DMDA-SNN@299
- 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 DMDASNN299 (DMDASNN299) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-efficiency hydraulic fluid direction control within a diverse range of applications. This direct-acting, balanced spool directional valve features a soft shift option which moderates the shock typically associated with valve actuation. Although not suitable for critical timing applications\u2014which are better served by electro-proportional valves\u2014this model's soft shift mechanism significantly increases response times, typically ranging from 150 ms to 300 ms depending on various factors such as flow, pressure, coil voltage, oil viscosity, and ambient temperature. The DMDASNN299 is engineered with a wet armature design wherein the working fluid surrounds the armature. This exposure can lead to fluid breakdown in prolonged energized states, especially in water-glycol mixtures that may form varnishes affecting cartridge functionality. It incorporates Sun's unique magnetic design that enhances solenoid efficiency and ensures robust valve shifting with high spool actuating force per watt expended. This model supports a maximum operational pressure of 5000 psi (350 bar) and has a flow capacity of up to 5 gpm (20 L/min). It includes a push-type manual override control and is compatible with EPDM seals for phosphate ester fluids; however, these seals are susceptible to damage by petroleum-based fluids. Additional features include various coil connector options offering up to IP69K ratings for environmental protection and Sun's floating style construction which minimizes internal part binding due to installation or machining variations. The DMDASNN299 also provides practical flexibility in field modifications with manual controls other than the installed type easily added as needed. This model\u2019s attributes make it ideal for applications requiring reliable performance under varying operational conditions without the need for precise timing controls.
The Sun Hydraulics DMDASNN299 (DMDASNN299) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-efficiency hydraulic fluid direction control within a diverse range of applications. This direct-acting, balanced spool directional valve features a soft shift option which moderates the shock typically associated with valve actuation. Although not suitable for critical timing applications\u2014which are better served by electro-proportional valves\u2014this model's soft shift mechanism significantly increases response times, typically ranging from 150 ms to 300 ms depending on various factors such as flow, pressure, coil voltage, oil viscosity, and ambient temperature. The DMDASNN299 is engineered with a wet armature design wherein the working fluid surrounds the armature. This exposure can lead to fluid breakdown in prolonged energized states, especially in water-glycol mixtures that may form varnishes affecting cartridge functionality. It incorporates Sun's unique magnetic design that enhances solenoid efficiency and ensures robust valve shifting with high spool actuating force per watt expended. This model supports a maximum operational pressure of 5000 psi (350 bar) and has a flow capacity of up to 5 gpm (20 L/min). It includes a push-type manual override control and is compatible with EPDM seals for phosphate ester fluids; however, these seals are susceptible to damage by petroleum-based fluids. Additional features include various coil connector options offering up to IP69K ratings for environmental protection and Sun's floating style construction which minimizes internal part binding due to installation or machining variations. The DMDASNN299 also provides practical flexibility in field modifications with manual controls other than the installed type easily added as needed. This model\u2019s attributes make it ideal for applications requiring reliable performance under varying operational conditions without the need for precise timing controls.
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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