SUN HYDRAULICS
DMDASRN298
$192.50 USD
- SUN HYDRAULICS
- Material:DMDASRN298
- Model:DMDA-SRN@298
- 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 DMDASRN298 (DMDASRN298) is a solenoid-operated, 3-way, 2-position cartridge valve that features a direct-acting, balanced spool design. This model is specifically engineered to offer a soft shift option, which moderates the hydraulic shock typically associated with valve actuation. While this feature extends the response time of the valve\u2014ranging from 150 ms to 300 ms\u2014it is crucial to note that it may not be suitable for applications requiring precise timing or ramping control. For such needs, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASRN298 includes a push-type manual override and boasts a fatigue rating for up to 5000 psi (350 bar) service. It is compatible with EPDM seals designed for phosphate ester fluids; however, exposure to petroleum-based fluids can damage these seals. The valve\u2019s wet armature design means the coil\u2019s heat affects the fluid surrounding the armature, potentially impacting fluid properties over extended periods of energization. Notably, the solenoid tube assembly of this model showcases high efficiency and robust spool actuating force per watt expended, ensuring reliable shifting even under demanding conditions. The valve also supports various coil connector options with ratings up to IP69K for enhanced environmental protection. Additionally, its floating style construction minimizes internal parts binding\u2014a common issue in valves due to installation torque or cavity/cartridge machining variations. This model has a flow capacity of 5 gpm (20 L/min) and can handle maximum operating pressures up to 5000 psi (350 bar). With its comprehensive features and robust design, the Sun Hydraulics DMDASRN298 offers an effective solution for controlling flow in hydraulic systems where moderate shock reduction is beneficial.
The Sun Hydraulics DMDASRN298 (DMDASRN298) is a solenoid-operated, 3-way, 2-position cartridge valve that features a direct-acting, balanced spool design. This model is specifically engineered to offer a soft shift option, which moderates the hydraulic shock typically associated with valve actuation. While this feature extends the response time of the valve\u2014ranging from 150 ms to 300 ms\u2014it is crucial to note that it may not be suitable for applications requiring precise timing or ramping control. For such needs, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASRN298 includes a push-type manual override and boasts a fatigue rating for up to 5000 psi (350 bar) service. It is compatible with EPDM seals designed for phosphate ester fluids; however, exposure to petroleum-based fluids can damage these seals. The valve\u2019s wet armature design means the coil\u2019s heat affects the fluid surrounding the armature, potentially impacting fluid properties over extended periods of energization. Notably, the solenoid tube assembly of this model showcases high efficiency and robust spool actuating force per watt expended, ensuring reliable shifting even under demanding conditions. The valve also supports various coil connector options with ratings up to IP69K for enhanced environmental protection. Additionally, its floating style construction minimizes internal parts binding\u2014a common issue in valves due to installation torque or cavity/cartridge machining variations. This model has a flow capacity of 5 gpm (20 L/min) and can handle maximum operating pressures up to 5000 psi (350 bar). With its comprehensive features and robust design, the Sun Hydraulics DMDASRN298 offers an effective solution for controlling flow in hydraulic systems where moderate shock reduction is beneficial.
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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