SUN HYDRAULICS
DMDASNN71299
$174.23 USD
- SUN HYDRAULICS
- Material:DMDASNN71299
- Model:DMDA-SNN@71299
- 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 DMDASNN71299 (DMDASNN71299) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic system applications requiring reliable directional control. This direct-acting, balanced spool valve features a unique soft shift option that mitigates shock during valve actuation, thereby extending the life of mechanical components in the system. Although it enhances the smooth operation, this soft shift mechanism results in increased response times ranging from 150 ms to 300 ms, which may not be suitable for applications where precise timing control is critical. This model is constructed with a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), making it robust for high-pressure applications. The DMDASNN71299 incorporates Sun's floating style construction which minimizes internal part binding due to installation or cavity-cartridge machining variations. It also features a manual override function with a push-type control, providing an additional layer of operational security and flexibility. However, it's important to note that this manual override is not compatible with weatherized coils. Designed for versatility in environmental adaptation, the valve offers coil connector options with ratings up to IP69K and supports additional weatherized coils and kits for enhanced protection against harsh conditions. The valve operates optimally when port 1 maintains positive pressure and uses EPDM seals specifically suited for phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. Furthermore, the innovative magnetic design of the solenoid ensures high efficiency and effective spool actuating force per watt expended. This feature contributes significantly to reliable valve shifting even under challenging operational conditions. The DMDASNN71299 is an ideal solution for hydraulic systems requiring robust performance with optional enhanced operational smoothness provided by the soft shift feature.
The Sun Hydraulics DMDASNN71299 (DMDASNN71299) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic system applications requiring reliable directional control. This direct-acting, balanced spool valve features a unique soft shift option that mitigates shock during valve actuation, thereby extending the life of mechanical components in the system. Although it enhances the smooth operation, this soft shift mechanism results in increased response times ranging from 150 ms to 300 ms, which may not be suitable for applications where precise timing control is critical. This model is constructed with a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), making it robust for high-pressure applications. The DMDASNN71299 incorporates Sun's floating style construction which minimizes internal part binding due to installation or cavity-cartridge machining variations. It also features a manual override function with a push-type control, providing an additional layer of operational security and flexibility. However, it's important to note that this manual override is not compatible with weatherized coils. Designed for versatility in environmental adaptation, the valve offers coil connector options with ratings up to IP69K and supports additional weatherized coils and kits for enhanced protection against harsh conditions. The valve operates optimally when port 1 maintains positive pressure and uses EPDM seals specifically suited for phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. Furthermore, the innovative magnetic design of the solenoid ensures high efficiency and effective spool actuating force per watt expended. This feature contributes significantly to reliable valve shifting even under challenging operational conditions. The DMDASNN71299 is an ideal solution for hydraulic systems requiring robust performance with optional enhanced operational smoothness provided by the soft shift feature.
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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