SUN HYDRAULICS
DMDASRN836
$165.30 USD
- SUN HYDRAULICS
- Material:DMDASRN836
- Model:DMDA-SRN@836
- 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 DMDASRN836 (DMDASRN836) is a solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic flow control in various applications. It features a direct-acting, balanced spool with a unique soft shift option that mitigates shock during valve actuation, which is particularly useful in systems where fluid or mechanical shock can cause damage or undesired reactions. However, it is noted that the soft shift feature should not be relied upon for critical timing applications, suggesting the use of Sun's electroproportional valves for scenarios requiring precise control over ramping and timing. The valve's response time varies from 150 ms to 300 ms depending on multiple factors such as flow rate, pressure, coil voltage, oil viscosity, and ambient temperature conditions. For optimal performance of the soft shift feature, it is recommended that port 1 maintains positive pressure. This model also includes a push-type manual override control which provides additional operational flexibility, although it is incompatible with weatherized coils. Constructed to handle pressures up to 5000 psi (350 bar), the DMDASRN836 incorporates fatigue-rated solenoid tube assemblies and EPDM seals suitable for phosphate ester fluids; however, these seals are susceptible to damage when exposed to petroleum-based fluids. The wet armature design of the solenoid means that heat generated by the coil directly affects the working fluid which could lead to breakdowns in certain fluid types over extended periods. Enhancing its robustness and reliability in various installation scenarios, this model employs Sun\u2019s floating style construction which minimizes internal part binding due to installation torque or machining variations of cavity/cartridge. The valve also boasts high efficiency in its magnetic design which ensures effective spool actuation with minimal energy expenditure. Moreover, various coil connector options are available offering up to IP69K protection for enhanced environmental resilience.
The Sun Hydraulics DMDASRN836 (DMDASRN836) is a solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic flow control in various applications. It features a direct-acting, balanced spool with a unique soft shift option that mitigates shock during valve actuation, which is particularly useful in systems where fluid or mechanical shock can cause damage or undesired reactions. However, it is noted that the soft shift feature should not be relied upon for critical timing applications, suggesting the use of Sun's electroproportional valves for scenarios requiring precise control over ramping and timing. The valve's response time varies from 150 ms to 300 ms depending on multiple factors such as flow rate, pressure, coil voltage, oil viscosity, and ambient temperature conditions. For optimal performance of the soft shift feature, it is recommended that port 1 maintains positive pressure. This model also includes a push-type manual override control which provides additional operational flexibility, although it is incompatible with weatherized coils. Constructed to handle pressures up to 5000 psi (350 bar), the DMDASRN836 incorporates fatigue-rated solenoid tube assemblies and EPDM seals suitable for phosphate ester fluids; however, these seals are susceptible to damage when exposed to petroleum-based fluids. The wet armature design of the solenoid means that heat generated by the coil directly affects the working fluid which could lead to breakdowns in certain fluid types over extended periods. Enhancing its robustness and reliability in various installation scenarios, this model employs Sun\u2019s floating style construction which minimizes internal part binding due to installation torque or machining variations of cavity/cartridge. The valve also boasts high efficiency in its magnetic design which ensures effective spool actuation with minimal energy expenditure. Moreover, various coil connector options are available offering up to IP69K protection for enhanced environmental resilience.
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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