SUN HYDRAULICS
DMDASPV748
$175.92 USD
- SUN HYDRAULICS
- Material:DMDASPV748
- Model:DMDA-SPV@748
- 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 DMDASPV748 (DMDASPV748) is a solenoid-operated 3-way, 2-position cartridge valve characterized by a direct-acting, balanced spool design. This model features a soft shift option that moderates hydraulic shock during valve actuation, thereby extending the lifespan of hydraulic systems although it is not suitable for applications requiring precise timing control. Instead, for such applications, electroproportional valves are recommended. The soft shift model has a longer response time compared to Sun\u2019s standard solenoids, typically ranging from 150 ms to 300 ms. This response time can vary based on factors like flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. The valve is designed with a push-type manual override control but does not support other manual control options in conjunction with the soft shift feature; however, these can be added in the field if necessary. It's important to note that manual override functions are not compatible with weatherized coils. The DMDASPV748 operates effectively under a maximum pressure of 5000 psi (350 bar) and is fatigue rated for high-pressure conditions. Its cartridges are configurable with EPDM seals specifically for use with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. This model also benefits from a wet armature design where the working fluid surrounds the armature which might be susceptible to heat during prolonged coil energization. Additionally, its innovative magnetic design enhances solenoid efficiency leading to robust valve shifting performance. Installation features include Sun\u2019s floating style construction which helps prevent internal parts binding due to improper installation torque or machining variations of cavity/cartridge.
The Sun Hydraulics DMDASPV748 (DMDASPV748) is a solenoid-operated 3-way, 2-position cartridge valve characterized by a direct-acting, balanced spool design. This model features a soft shift option that moderates hydraulic shock during valve actuation, thereby extending the lifespan of hydraulic systems although it is not suitable for applications requiring precise timing control. Instead, for such applications, electroproportional valves are recommended. The soft shift model has a longer response time compared to Sun\u2019s standard solenoids, typically ranging from 150 ms to 300 ms. This response time can vary based on factors like flow rate, pressure, coil voltage, oil viscosity, and ambient temperature. The valve is designed with a push-type manual override control but does not support other manual control options in conjunction with the soft shift feature; however, these can be added in the field if necessary. It's important to note that manual override functions are not compatible with weatherized coils. The DMDASPV748 operates effectively under a maximum pressure of 5000 psi (350 bar) and is fatigue rated for high-pressure conditions. Its cartridges are configurable with EPDM seals specifically for use with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. This model also benefits from a wet armature design where the working fluid surrounds the armature which might be susceptible to heat during prolonged coil energization. Additionally, its innovative magnetic design enhances solenoid efficiency leading to robust valve shifting performance. Installation features include Sun\u2019s floating style construction which helps prevent internal parts binding due to improper installation torque or machining variations of cavity/cartridge.
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 |
Show FAQ