SUN HYDRAULICS
DMDADBN297
$216.43 USD
- SUN HYDRAULICS
- Material:DMDADBN297
- Model:DMDA-DBN@297
- 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 DMDADBN297 (DMDADBN297) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve features a solenoid tube assembly rated for 5000 psi (350 bar), making it suitable for fatigue-rated service. It operates with no minimum hydraulic pressure required, ensuring reliable functionality across various applications. The DMDADBN297 offers closed transitions between its two positions via Spools B and R, optimizing performance by reducing capacity only when necessary. This feature is particularly beneficial in pilot control applications where rapid and consistent response times are critical. The valve also includes manual override options with a detent mechanism designed for temporary actuation, providing flexibility in control during operation. Configured with EPDM seals, the DMDADBN297 is compatible with phosphate ester fluids but should avoid exposure to petroleum-based substances to prevent seal damage. Its wet armature design allows the working fluid to surround the armature, which is advantageous but requires consideration of fluid type due to potential heat exposure from prolonged coil energization. This model incorporates interchangeable coils from Sun Series 1 solenoid products and features a floating style construction that minimizes internal part binding due to installation or machining discrepancies. With a capacity of 12 gpm (45 L/min) and quick response times typically around 50 ms, the DMDADBN297 is an efficient solution for managing directional flow in advanced hydraulic circuits.
The Sun Hydraulics DMDADBN297 (DMDADBN297) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve features a solenoid tube assembly rated for 5000 psi (350 bar), making it suitable for fatigue-rated service. It operates with no minimum hydraulic pressure required, ensuring reliable functionality across various applications. The DMDADBN297 offers closed transitions between its two positions via Spools B and R, optimizing performance by reducing capacity only when necessary. This feature is particularly beneficial in pilot control applications where rapid and consistent response times are critical. The valve also includes manual override options with a detent mechanism designed for temporary actuation, providing flexibility in control during operation. Configured with EPDM seals, the DMDADBN297 is compatible with phosphate ester fluids but should avoid exposure to petroleum-based substances to prevent seal damage. Its wet armature design allows the working fluid to surround the armature, which is advantageous but requires consideration of fluid type due to potential heat exposure from prolonged coil energization. This model incorporates interchangeable coils from Sun Series 1 solenoid products and features a floating style construction that minimizes internal part binding due to installation or machining discrepancies. With a capacity of 12 gpm (45 L/min) and quick response times typically around 50 ms, the DMDADBN297 is an efficient solution for managing directional flow in advanced hydraulic circuits.
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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