SUN HYDRAULICS
DMDAXBN297
$178.70 USD
- SUN HYDRAULICS
- Material:DMDAXBN297
- Model:DMDA-XBN@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 DMDAXBN297 (DMDAXBN297) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of up to 12 gpm (45 L/min). The valve features a unique closed transition between Spools B and R, enhancing performance by providing faster and more consistent response times in applications where capacity is less critical. This makes it particularly suitable for use as pilot controls. The DMDAXBN297 requires no minimum hydraulic pressure for operation, which allows for flexibility in various hydraulic systems. It includes a manual override with a detent mechanism designed for temporary actuation, supporting mechanical life expectancy of approximately 7,000 cycles. The valve is equipped with EPDM seals specifically for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Additionally, the wet armature design of the valve ensures that the working fluid surrounds the armature, which could be relevant in applications where the coil is energized for extended periods. Care should be taken with certain fluids like water-glycol mixtures that may degrade under prolonged exposure to heat. Interchangeable coils from Sun Series 1 solenoid products add to the versatility of this model, which also incorporates Sun's floating style construction to minimize internal parts binding due to installation torque or cavity/cartridge machining variations. This robust design and adaptable features make the DMDAXBN297 an excellent choice for demanding hydraulic control applications requiring reliable directional control and fast response times.
The Sun Hydraulics DMDAXBN297 (DMDAXBN297) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of up to 12 gpm (45 L/min). The valve features a unique closed transition between Spools B and R, enhancing performance by providing faster and more consistent response times in applications where capacity is less critical. This makes it particularly suitable for use as pilot controls. The DMDAXBN297 requires no minimum hydraulic pressure for operation, which allows for flexibility in various hydraulic systems. It includes a manual override with a detent mechanism designed for temporary actuation, supporting mechanical life expectancy of approximately 7,000 cycles. The valve is equipped with EPDM seals specifically for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Additionally, the wet armature design of the valve ensures that the working fluid surrounds the armature, which could be relevant in applications where the coil is energized for extended periods. Care should be taken with certain fluids like water-glycol mixtures that may degrade under prolonged exposure to heat. Interchangeable coils from Sun Series 1 solenoid products add to the versatility of this model, which also incorporates Sun's floating style construction to minimize internal parts binding due to installation torque or cavity/cartridge machining variations. This robust design and adaptable features make the DMDAXBN297 an excellent choice for demanding hydraulic control applications requiring reliable directional control and fast response times.
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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