SUN HYDRAULICS
DMDADRV298
$266.27 USD
- SUN HYDRAULICS
- Material:DMDADRV298
- Model:DMDA-DRV@298
- 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 DMDADRV298 (DMDADRV298) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control. This direct-acting, balanced spool directional valve is engineered to operate without requiring a minimum hydraulic pressure, enhancing its versatility across various applications. The valve features a robust design with spools B and R closed during the transition between positions, optimizing performance by ensuring faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. Constructed to withstand demanding conditions, the DMDADRV298 valve is fatigue rated for 5000 psi (350 bar) service. It incorporates a wet armature design where the working fluid surrounds the armature; this setup necessitates careful consideration of fluid type as heat generated by the coil during prolonged energization can degrade certain fluids like water-glycol mixtures. To accommodate different system requirements, cartridges with EPDM seals are available specifically for use with phosphate ester fluids. This model also features interchangeable coils with other Sun Series 1 solenoid products and supports installation flexibility by allowing coils to be mounted in either direction. The manual override mechanism in models equipped with D or L control is designed for temporary actuation and has a mechanical life expectancy of approximately 7,000 cycles. Additionally, the valve benefits from Sun's floating style construction which minimizes internal part binding due to installation torque or cavity/cartridge machining variations. Key specifications include a flow capacity of up to 12 gpm (45 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 50 ms, and maximum leakage at 3000 psi being limited to 5 in\u00b3/min. The DMDADRV298 is engineered to handle switching frequencies up to 15,000 cycles/hr, making it an ideal choice for systems requiring high cycling rates and reliability.
The Sun Hydraulics DMDADRV298 (DMDADRV298) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control. This direct-acting, balanced spool directional valve is engineered to operate without requiring a minimum hydraulic pressure, enhancing its versatility across various applications. The valve features a robust design with spools B and R closed during the transition between positions, optimizing performance by ensuring faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. Constructed to withstand demanding conditions, the DMDADRV298 valve is fatigue rated for 5000 psi (350 bar) service. It incorporates a wet armature design where the working fluid surrounds the armature; this setup necessitates careful consideration of fluid type as heat generated by the coil during prolonged energization can degrade certain fluids like water-glycol mixtures. To accommodate different system requirements, cartridges with EPDM seals are available specifically for use with phosphate ester fluids. This model also features interchangeable coils with other Sun Series 1 solenoid products and supports installation flexibility by allowing coils to be mounted in either direction. The manual override mechanism in models equipped with D or L control is designed for temporary actuation and has a mechanical life expectancy of approximately 7,000 cycles. Additionally, the valve benefits from Sun's floating style construction which minimizes internal part binding due to installation torque or cavity/cartridge machining variations. Key specifications include a flow capacity of up to 12 gpm (45 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 50 ms, and maximum leakage at 3000 psi being limited to 5 in\u00b3/min. The DMDADRV298 is engineered to handle switching frequencies up to 15,000 cycles/hr, making it an ideal choice for systems requiring high cycling rates 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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