SUN HYDRAULICS
DMDADRV297
$266.27 USD
- SUN HYDRAULICS
- Material:DMDADRV297
- Model:DMDA-DRV@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 DMDADRV297 (DMDADRV297) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is characterized by its ability to operate without minimum hydraulic pressure, making it exceptionally versatile for various uses. With a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of 12 gpm (45 L/min), it caters to demanding operational criteria. The valve features closed transitions between positions B and R, enhancing performance by providing consistent and faster response times ideal for pilot control applications where capacity is less critical. The durability of the solenoid tube assembly is evident as it is fatigue rated for high-pressure service. Additionally, the manual override options equipped with D or L control include a detent mechanism designed primarily for temporary actuation, supporting about 7,000 mechanical life cycles. For environments using phosphate ester fluids, cartridges with EPDM seals are recommended as they are resistant to these fluid types; however, exposure to petroleum-based fluids can damage the seals. The wet armature design of the valve ensures that the working fluid cools the armature, although prolonged energization could lead to fluid breakdown in certain conditions. Interchangeability of coils with other Sun Series 1 solenoid products adds flexibility in maintenance and replacement processes. The construction incorporates Sun's floating style design which helps minimize internal part binding due to excessive installation torque or variations in cavity/cartridge machining. This attention to detail ensures reliable operation and longevity of the component in various hydraulic setups.
The Sun Hydraulics DMDADRV297 (DMDADRV297) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is characterized by its ability to operate without minimum hydraulic pressure, making it exceptionally versatile for various uses. With a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of 12 gpm (45 L/min), it caters to demanding operational criteria. The valve features closed transitions between positions B and R, enhancing performance by providing consistent and faster response times ideal for pilot control applications where capacity is less critical. The durability of the solenoid tube assembly is evident as it is fatigue rated for high-pressure service. Additionally, the manual override options equipped with D or L control include a detent mechanism designed primarily for temporary actuation, supporting about 7,000 mechanical life cycles. For environments using phosphate ester fluids, cartridges with EPDM seals are recommended as they are resistant to these fluid types; however, exposure to petroleum-based fluids can damage the seals. The wet armature design of the valve ensures that the working fluid cools the armature, although prolonged energization could lead to fluid breakdown in certain conditions. Interchangeability of coils with other Sun Series 1 solenoid products adds flexibility in maintenance and replacement processes. The construction incorporates Sun's floating style design which helps minimize internal part binding due to excessive installation torque or variations in cavity/cartridge machining. This attention to detail ensures reliable operation and longevity of the component in various hydraulic setups.
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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