SUN HYDRAULICS
DMDASNN548
$158.45 USD
- SUN HYDRAULICS
- Material:DMDASNN548
- Model:DMDA-SNN@548
- 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 DMDASNN548 (DMDASNN548) is a solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic systems. It features a direct-acting, balanced spool directional control with a unique soft shift capability that moderates the shock and vibration typically caused by valve actuation. This feature is particularly beneficial in reducing system shocks but is not suitable for applications requiring precise timing or ramp control, where electroproportional valves might be more appropriate. The valve's response time varies from 150 ms to 300 ms, influenced by factors such as flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. The soft shift model offers a slower response compared to Sun Hydraulics' standard solenoids but provides smoother transitions. For optimal performance of the soft shift functionality, it is recommended that port 1 maintains positive pressure. This model includes a push-type manual override control which does not support other manual control options like T or D in its configuration but allows for easy field installation of these features. Notably, manual overrides are not compatible with weatherized coils. The solenoid tube assembly of this valve is fatigue rated for up to 5000 psi (350 bar), ensuring durability under high-pressure conditions. Configurations with EPDM seals are intended for use with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The wet armature design means the armature is immersed in fluid which helps manage heat during prolonged energization but may degrade certain types of hydraulic fluids over time. Additional attributes include an IP69K rating option for coil connectors enhancing environmental protection against dust and water ingress. The floating style construction minimizes internal binding risks due to installation or machining variances. This model supports up to 5 gpm (20 L/min) flow capacity and can handle maximum operating pressures up to 5000 psi (350 bar).
The Sun Hydraulics DMDASNN548 (DMDASNN548) is a solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic systems. It features a direct-acting, balanced spool directional control with a unique soft shift capability that moderates the shock and vibration typically caused by valve actuation. This feature is particularly beneficial in reducing system shocks but is not suitable for applications requiring precise timing or ramp control, where electroproportional valves might be more appropriate. The valve's response time varies from 150 ms to 300 ms, influenced by factors such as flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. The soft shift model offers a slower response compared to Sun Hydraulics' standard solenoids but provides smoother transitions. For optimal performance of the soft shift functionality, it is recommended that port 1 maintains positive pressure. This model includes a push-type manual override control which does not support other manual control options like T or D in its configuration but allows for easy field installation of these features. Notably, manual overrides are not compatible with weatherized coils. The solenoid tube assembly of this valve is fatigue rated for up to 5000 psi (350 bar), ensuring durability under high-pressure conditions. Configurations with EPDM seals are intended for use with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The wet armature design means the armature is immersed in fluid which helps manage heat during prolonged energization but may degrade certain types of hydraulic fluids over time. Additional attributes include an IP69K rating option for coil connectors enhancing environmental protection against dust and water ingress. The floating style construction minimizes internal binding risks due to installation or machining variances. This model supports up to 5 gpm (20 L/min) flow capacity and can handle maximum operating pressures up to 5000 psi (350 bar).
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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