SUN HYDRAULICS
DMDASNN248
$159.34 USD
- SUN HYDRAULICS
- Material:DMDASNN248
- Model:DMDA-SNN@248
- 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 DMDASNN248 (DMDASNN248) is a solenoid-operated 3-way, 2-position cartridge valve that functions as a direct-acting, balanced spool directional valve. This model includes a soft shift feature designed to minimize hydraulic shock during valve actuation, though it is not suitable for applications requiring precise timing control. For such needs, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASNN248 has an increased response time ranging from 150 ms to 300 ms compared to standard solenoids, influenced by factors such as flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. It is essential for Port 1 to maintain positive pressure to ensure consistent performance of the soft shift functionality. This valve also features a push-type manual override control and incorporates Sun's floating style construction which helps prevent internal parts from binding due to installation errors or variations in cavity/cartridge machining. Constructed with fatigue-rated solenoid tube assemblies for up to 5000 psi (350 bar) service and EPDM seals suitable for phosphate ester fluids (note: exposure to petroleum-based fluids will damage the seals), this model is robust for demanding applications. The wet armature design of the valve means that the working fluid surrounds the armature; prolonged energization can lead to heat build-up affecting certain fluid types. Its magnetic design ensures high efficiency and reliable valve shifting with various coil connector options available offering up to IP69K ratings. Additional features include weatherized coils and kits for environmental protection, manual override options incompatible with weatherized coils but easily field-installable in other configurations. This versatile cartridge valve is ideal for systems where hydraulic shock reduction is beneficial but not critical for operation timing.
The Sun Hydraulics DMDASNN248 (DMDASNN248) is a solenoid-operated 3-way, 2-position cartridge valve that functions as a direct-acting, balanced spool directional valve. This model includes a soft shift feature designed to minimize hydraulic shock during valve actuation, though it is not suitable for applications requiring precise timing control. For such needs, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASNN248 has an increased response time ranging from 150 ms to 300 ms compared to standard solenoids, influenced by factors such as flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. It is essential for Port 1 to maintain positive pressure to ensure consistent performance of the soft shift functionality. This valve also features a push-type manual override control and incorporates Sun's floating style construction which helps prevent internal parts from binding due to installation errors or variations in cavity/cartridge machining. Constructed with fatigue-rated solenoid tube assemblies for up to 5000 psi (350 bar) service and EPDM seals suitable for phosphate ester fluids (note: exposure to petroleum-based fluids will damage the seals), this model is robust for demanding applications. The wet armature design of the valve means that the working fluid surrounds the armature; prolonged energization can lead to heat build-up affecting certain fluid types. Its magnetic design ensures high efficiency and reliable valve shifting with various coil connector options available offering up to IP69K ratings. Additional features include weatherized coils and kits for environmental protection, manual override options incompatible with weatherized coils but easily field-installable in other configurations. This versatile cartridge valve is ideal for systems where hydraulic shock reduction is beneficial but not critical for operation timing.
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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