SUN HYDRAULICS
DMDALRN912
$229.24 USD
- SUN HYDRAULICS
- Material:DMDALRN912
- Model:DMDA-LRN@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 DMDALRN912 (DMDALRN912) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve features a fatigue rating of 5000 psi (350 bar), making it suitable for rigorous applications. The solenoid tube assembly enhances the valve's durability and reliability under high-pressure operations. Specifically designed with closed transitions between Spools B and R, the DMDALRN912 ensures faster and more consistent response times when utilized as pilot controls, an advantage where capacity is less critical. This valve operates without requiring a minimum hydraulic pressure, facilitating its use in various hydraulic systems directly. It includes manual override options with a detent mechanism designed for temporary actuation, ensuring ease of operation during manual interventions. The mechanical life expectancy of the manual control assembly in models equipped with the D or L control stands at approximately 7,000 cycles. Additionally, the DMDALRN912 can be configured with EPDM seals suitable for systems using phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they could degrade. The wet armature design of this model means that the working fluid surrounds the armature which could potentially affect fluid integrity if exposed to prolonged heat. For installation flexibility, its coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The valve also incorporates Sun\u2019s floating style construction to minimize internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and quick response time typically around 50 ms, this robust valve is an efficient choice for dynamic system requirements needing precise control and reliability.
The Sun Hydraulics DMDALRN912 (DMDALRN912) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve features a fatigue rating of 5000 psi (350 bar), making it suitable for rigorous applications. The solenoid tube assembly enhances the valve's durability and reliability under high-pressure operations. Specifically designed with closed transitions between Spools B and R, the DMDALRN912 ensures faster and more consistent response times when utilized as pilot controls, an advantage where capacity is less critical. This valve operates without requiring a minimum hydraulic pressure, facilitating its use in various hydraulic systems directly. It includes manual override options with a detent mechanism designed for temporary actuation, ensuring ease of operation during manual interventions. The mechanical life expectancy of the manual control assembly in models equipped with the D or L control stands at approximately 7,000 cycles. Additionally, the DMDALRN912 can be configured with EPDM seals suitable for systems using phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they could degrade. The wet armature design of this model means that the working fluid surrounds the armature which could potentially affect fluid integrity if exposed to prolonged heat. For installation flexibility, its coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The valve also incorporates Sun\u2019s floating style construction to minimize internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and quick response time typically around 50 ms, this robust valve is an efficient choice for dynamic system requirements needing precise control and reliability.
This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool directional valve.
- The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
- Spools B and R are closed in the transition between their two positions. This results in a higher performance limit at the expense of lower capacity. When used as pilot controls, where capacity is not a factor, the closed transition will provide faster and more consistent response times.
- This valve is direct actuated and requires no minimum hydraulic pressure for operation.
- On models equipped with the D or L control, the detent mechanism in the manual override is meant for temporary actuation. The D, L and T manual control assembly has a mechanical life expectancy of approximately 7,000 cycles.
- 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.
- Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
- 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 | 12 gpm45 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 50 ms50 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.@3000 psi80 cc/min.@210 bar |
| Switching Frequency | 15000 cycles/hr15000 cycles/hr |
| 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 |
| Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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