SUN HYDRAULICS
DMDASNN912
$163.41 USD
- SUN HYDRAULICS
- Material:DMDASNN912
- Model:DMDA-SNN@912
- 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 DMDASNN912 (DMDASNN912) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-efficiency hydraulic control. This direct-acting, balanced spool directional valve is notable for its soft shift feature, which minimizes hydraulic shock during valve actuation. Although this feature increases the valve\u2019s response time (typically ranging from 150 ms to 300 ms), it helps in applications sensitive to shock but is not suitable where precise timing control is critical. For such applications, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASNN912 valve operates optimally when port 1 maintains positive pressure and includes a push-type manual override, although it does not support other manual control options when equipped with soft shift control. It features a fatigue-rated solenoid tube assembly for up to 5000 psi (350 bar) service and utilizes EPDM seals suitable for phosphate ester fluids, cautioning against exposure to petroleum-based substances which could damage the seals. This model also benefits from a wet armature design where the working fluid surrounds the armature, potentially affecting fluid integrity under prolonged energization. Its magnetic design enhances solenoid efficiency, ensuring reliable spool actuation with high force per watt expended. Additional features include an IP69K rating for coil connector options and environmental protection through optional weatherized coils and kits. The cartridge leverages Sun\u2019s floating style construction to prevent internal part binding due to installation variances or excessive torque. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity of up to 5 gpm (20 L/min), and minimal leakage at high pressures. The manual override requires minimal force and offers a short stroke for quick engagement. This model's robust design and advanced features make it suitable for various hydraulic applications requiring reliable performance and fluid compatibility.
The Sun Hydraulics DMDASNN912 (DMDASNN912) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-efficiency hydraulic control. This direct-acting, balanced spool directional valve is notable for its soft shift feature, which minimizes hydraulic shock during valve actuation. Although this feature increases the valve\u2019s response time (typically ranging from 150 ms to 300 ms), it helps in applications sensitive to shock but is not suitable where precise timing control is critical. For such applications, Sun Hydraulics recommends considering their electro-proportional valves instead. The DMDASNN912 valve operates optimally when port 1 maintains positive pressure and includes a push-type manual override, although it does not support other manual control options when equipped with soft shift control. It features a fatigue-rated solenoid tube assembly for up to 5000 psi (350 bar) service and utilizes EPDM seals suitable for phosphate ester fluids, cautioning against exposure to petroleum-based substances which could damage the seals. This model also benefits from a wet armature design where the working fluid surrounds the armature, potentially affecting fluid integrity under prolonged energization. Its magnetic design enhances solenoid efficiency, ensuring reliable spool actuation with high force per watt expended. Additional features include an IP69K rating for coil connector options and environmental protection through optional weatherized coils and kits. The cartridge leverages Sun\u2019s floating style construction to prevent internal part binding due to installation variances or excessive torque. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity of up to 5 gpm (20 L/min), and minimal leakage at high pressures. The manual override requires minimal force and offers a short stroke for quick engagement. This model's robust design and advanced features make it suitable for various hydraulic applications requiring reliable performance and fluid compatibility.
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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