SUN HYDRAULICS
DMDASAV628
$166.49 USD
- SUN HYDRAULICS
- Material:DMDASAV628
- Model:DMDA-SAV@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 DMDASAV628 (DMDASAV628) is a solenoid-operated 3-way, 2-position cartridge valve, designed for direct-acting and balanced spool directional control. This model features a unique soft shift option that moderates hydraulic shock during valve actuation, enhancing system longevity and reducing noise. However, it is important to note that this soft shift feature may increase response times (typically between 150 ms to 300 ms), which could impact applications requiring precise timing controls. For such needs, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASAV628 operates optimally when port 1 maintains positive pressure and incorporates a push-type manual override control for additional operational flexibility. It should be noted that other manual control options are not compatible with the soft shift feature but can be adapted in the field if necessary. The valve's construction includes a fatigue-rated solenoid tube assembly for pressures up to 5000 psi (350 bar) and utilizes EPDM seals suitable for phosphate ester fluids, avoiding exposure to petroleum-based substances which could degrade the seals. This model also benefits from a wet armature design where the working fluid surrounds the armature, potentially affecting performance if exposed to high temperatures over extended periods. Its magnetic design ensures high efficiency and reliable valve shifting due to the high spool actuating force per watt expended. The DMDASAV628 supports various coil connector options with ratings up to IP69K for enhanced environmental protection, and its floating style construction minimizes internal parts binding, ensuring consistent operation even under varying installation conditions.
The Sun Hydraulics DMDASAV628 (DMDASAV628) is a solenoid-operated 3-way, 2-position cartridge valve, designed for direct-acting and balanced spool directional control. This model features a unique soft shift option that moderates hydraulic shock during valve actuation, enhancing system longevity and reducing noise. However, it is important to note that this soft shift feature may increase response times (typically between 150 ms to 300 ms), which could impact applications requiring precise timing controls. For such needs, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASAV628 operates optimally when port 1 maintains positive pressure and incorporates a push-type manual override control for additional operational flexibility. It should be noted that other manual control options are not compatible with the soft shift feature but can be adapted in the field if necessary. The valve's construction includes a fatigue-rated solenoid tube assembly for pressures up to 5000 psi (350 bar) and utilizes EPDM seals suitable for phosphate ester fluids, avoiding exposure to petroleum-based substances which could degrade the seals. This model also benefits from a wet armature design where the working fluid surrounds the armature, potentially affecting performance if exposed to high temperatures over extended periods. Its magnetic design ensures high efficiency and reliable valve shifting due to the high spool actuating force per watt expended. The DMDASAV628 supports various coil connector options with ratings up to IP69K for enhanced environmental protection, and its floating style construction minimizes internal parts binding, ensuring consistent operation even under varying installation conditions.
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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