SUN HYDRAULICS
DMDASPV728
$175.92 USD
- SUN HYDRAULICS
- Material:DMDASPV728
- Model:DMDA-SPV@728
- 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 DMDASPV728 (DMDASPV728) is a solenoid-operated 3-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. This model is specifically engineered to offer a soft shift option, which significantly reduces shock during valve actuation. While this feature enhances the smooth operation of the valve, it is not suitable for applications requiring precise timing control, such as those needing accurate ramping. Users requiring more exact control should consider Sun\u2019s electro-proportional valves instead. The DMDASPV728 incorporates a wet armature design where the working fluid surrounds the armature. This characteristic can be critical if the coil remains energized over extended periods since some fluids may degrade under prolonged exposure to heat, affecting valve performance. The model also boasts a high-efficiency solenoid that provides robust spool actuating force per watt expended, ensuring reliable shifting of the valve. Additionally, this valve features manual override capabilities with a push-type control and is designed with Sun's floating style construction to reduce internal parts binding. It has been fatigue rated for 5000 psi (350 bar) service and includes various coil connector options that offer environmental protection ratings up to IP69K for enhanced durability in diverse operating conditions. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 5 gpm (20 L/min), and typical response times ranging from 150 ms to 300 ms depending on several factors such as flow rate and ambient temperature. The manual override requires minimal force, and its stroke allows for easy field adjustments without needing specialized tools or extensive downtime. This model uses EPDM seals suitable for systems with phosphate ester fluids but incompatible with petroleum-based fluids which can damage the seals.
The Sun Hydraulics DMDASPV728 (DMDASPV728) is a solenoid-operated 3-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. This model is specifically engineered to offer a soft shift option, which significantly reduces shock during valve actuation. While this feature enhances the smooth operation of the valve, it is not suitable for applications requiring precise timing control, such as those needing accurate ramping. Users requiring more exact control should consider Sun\u2019s electro-proportional valves instead. The DMDASPV728 incorporates a wet armature design where the working fluid surrounds the armature. This characteristic can be critical if the coil remains energized over extended periods since some fluids may degrade under prolonged exposure to heat, affecting valve performance. The model also boasts a high-efficiency solenoid that provides robust spool actuating force per watt expended, ensuring reliable shifting of the valve. Additionally, this valve features manual override capabilities with a push-type control and is designed with Sun's floating style construction to reduce internal parts binding. It has been fatigue rated for 5000 psi (350 bar) service and includes various coil connector options that offer environmental protection ratings up to IP69K for enhanced durability in diverse operating conditions. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 5 gpm (20 L/min), and typical response times ranging from 150 ms to 300 ms depending on several factors such as flow rate and ambient temperature. The manual override requires minimal force, and its stroke allows for easy field adjustments without needing specialized tools or extensive downtime. This model uses EPDM seals suitable for systems with phosphate ester fluids but incompatible with petroleum-based fluids which can damage the seals.
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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