SUN HYDRAULICS
DMDAMRN298
$228.55 USD
- SUN HYDRAULICS
- Material:DMDAMRN298
- Model:DMDA-MRN@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 DMDAMRN298 (DMDAMRN298) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust operation with a fatigue rating for 5000 psi (350 bar) service. The valve features closed transitions between Spools B and R, optimizing performance by allowing faster and more consistent response times when used as pilot controls. Notably, the DMDAMRN298 requires no minimum hydraulic pressure to operate, enhancing its versatility in various applications. The model is equipped with an optional manual override (detent mechanism), specifically designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. It uses EPDM seals suitable for systems containing phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they could be damaged. A wet armature design characterizes this valve where the working fluid surrounds the armature\u2014important to consider if the coil remains energized for extended periods due to potential breakdown of certain fluids like water-glycol mixtures. Interchangeability of coils with other Sun Series 1 solenoid products adds flexibility for system design and maintenance, allowing coils to be mounted in either direction on the tube. Additionally, the DMDAMRN298 incorporates Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. This valve supports a flow capacity up to 12 gpm (45 L/min) and can handle a maximum operating pressure of 5000 psi (350 bar). With rapid response times typically around 50 ms and a switching frequency up to 15,000 cycles/hr, this model ensures reliable and efficient performance in demanding applications. The manual override requires minimal force and offers precise control, making the DMDAMRN298 an ideal choice for advanced hydraulic systems requiring high reliability and precise fluid control.
The Sun Hydraulics DMDAMRN298 (DMDAMRN298) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust operation with a fatigue rating for 5000 psi (350 bar) service. The valve features closed transitions between Spools B and R, optimizing performance by allowing faster and more consistent response times when used as pilot controls. Notably, the DMDAMRN298 requires no minimum hydraulic pressure to operate, enhancing its versatility in various applications. The model is equipped with an optional manual override (detent mechanism), specifically designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. It uses EPDM seals suitable for systems containing phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they could be damaged. A wet armature design characterizes this valve where the working fluid surrounds the armature\u2014important to consider if the coil remains energized for extended periods due to potential breakdown of certain fluids like water-glycol mixtures. Interchangeability of coils with other Sun Series 1 solenoid products adds flexibility for system design and maintenance, allowing coils to be mounted in either direction on the tube. Additionally, the DMDAMRN298 incorporates Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. This valve supports a flow capacity up to 12 gpm (45 L/min) and can handle a maximum operating pressure of 5000 psi (350 bar). With rapid response times typically around 50 ms and a switching frequency up to 15,000 cycles/hr, this model ensures reliable and efficient performance in demanding applications. The manual override requires minimal force and offers precise control, making the DMDAMRN298 an ideal choice for advanced hydraulic systems requiring high reliability and precise fluid control.
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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