SUN HYDRAULICS
DMDASNV628
$166.49 USD
- SUN HYDRAULICS
- Material:DMDASNV628
- Model:DMDA-SNV@628
- 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 DMDASNV628 (DMDASNV628) is a solenoid-operated 3-way, 2-position cartridge valve that utilizes a direct-acting, balanced spool directional mechanism. This model is designed for precise control in hydraulic systems, featuring a soft shift option that moderates the shock typically associated with valve actuation. Although this soft shift feature increases the response time of the valve\u2014typically between 150 ms to 300 ms\u2014it should not be relied upon in applications where timing is critical. For those scenarios, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASNV628 includes a push-type manual override and is designed with a wet armature setup, where the working fluid surrounds the armature and absorbs heat from the coil. This design consideration is crucial as prolonged energization can lead to fluid breakdown, especially with water-glycol mixtures, potentially affecting cartridge functionality. The valve\u2019s solenoid tube assembly is fatigue rated for up to 5000 psi (350 bar), ensuring robust performance under high-pressure conditions. This model also features Sun's floating style construction which minimizes internal parts binding due to installation torque or cavity/cartridge machining variations, enhancing operational reliability and lifespan. The cartridge comes with EPDM seals suitable for phosphate ester fluids but incompatible with petroleum-based fluids which can damage the seals. Additionally, the DMDASNV628 offers various coil connector options with ratings up to IP69K for substantial environmental protection against dust and moisture ingress. Each unit has a capacity of 5 gpm (20 L/min) and can handle maximum operating pressures up to 5000 psi (350 bar). With these specifications, the DMDASNV628 provides flexible and durable performance in diverse hydraulic applications.
The Sun Hydraulics DMDASNV628 (DMDASNV628) is a solenoid-operated 3-way, 2-position cartridge valve that utilizes a direct-acting, balanced spool directional mechanism. This model is designed for precise control in hydraulic systems, featuring a soft shift option that moderates the shock typically associated with valve actuation. Although this soft shift feature increases the response time of the valve\u2014typically between 150 ms to 300 ms\u2014it should not be relied upon in applications where timing is critical. For those scenarios, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASNV628 includes a push-type manual override and is designed with a wet armature setup, where the working fluid surrounds the armature and absorbs heat from the coil. This design consideration is crucial as prolonged energization can lead to fluid breakdown, especially with water-glycol mixtures, potentially affecting cartridge functionality. The valve\u2019s solenoid tube assembly is fatigue rated for up to 5000 psi (350 bar), ensuring robust performance under high-pressure conditions. This model also features Sun's floating style construction which minimizes internal parts binding due to installation torque or cavity/cartridge machining variations, enhancing operational reliability and lifespan. The cartridge comes with EPDM seals suitable for phosphate ester fluids but incompatible with petroleum-based fluids which can damage the seals. Additionally, the DMDASNV628 offers various coil connector options with ratings up to IP69K for substantial environmental protection against dust and moisture ingress. Each unit has a capacity of 5 gpm (20 L/min) and can handle maximum operating pressures up to 5000 psi (350 bar). With these specifications, the DMDASNV628 provides flexible and durable performance in diverse hydraulic applications.
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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