SUN HYDRAULICS
DMDADRV948
$240.76 USD
- SUN HYDRAULICS
- Material:DMDADRV948
- Model:DMDA-DRV@948
- 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 DMDADRV948 (DMDADRV948) is a high-performance solenoid-operated 3-way, 2-position cartridge valve characterized by its direct-acting, balanced spool design. Engineered for robustness and reliability, this valve can operate without minimum hydraulic pressure and features a fatigue rating suitable for 5000 psi (350 bar) service. The valve's spool transitions are closed between two positions to enhance performance limits at the cost of reduced capacity, making it particularly suitable for pilot control applications where rapid and consistent response times are critical. With a maximum flow capacity of 12 gpm (45 L/min) and a typical response time of 50 ms, the DMDADRV948 is designed to handle demanding operational conditions efficiently. It incorporates interchangeable coils compatible with other Sun Series 1 solenoid products, allowing for flexible installation orientations. The wet armature design ensures that the working fluid surrounds the armature, which is crucial in applications where the coil remains energized over extended periods. This model also includes manual override options with a detent mechanism designed for temporary actuation; however, it's worth noting that these mechanisms have a mechanical life expectancy of around 7,000 cycles. Special attention should be given to systems using EPDM seals with this cartridge as they are intended solely for phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The construction of the DMDADRV948 utilizes Sun\u2019s floating style to minimize internal part binding due to installation torque or cavity/cartridge machining variations. This feature contributes significantly to the durability and longevity of the valve in complex hydraulic systems.
The Sun Hydraulics DMDADRV948 (DMDADRV948) is a high-performance solenoid-operated 3-way, 2-position cartridge valve characterized by its direct-acting, balanced spool design. Engineered for robustness and reliability, this valve can operate without minimum hydraulic pressure and features a fatigue rating suitable for 5000 psi (350 bar) service. The valve's spool transitions are closed between two positions to enhance performance limits at the cost of reduced capacity, making it particularly suitable for pilot control applications where rapid and consistent response times are critical. With a maximum flow capacity of 12 gpm (45 L/min) and a typical response time of 50 ms, the DMDADRV948 is designed to handle demanding operational conditions efficiently. It incorporates interchangeable coils compatible with other Sun Series 1 solenoid products, allowing for flexible installation orientations. The wet armature design ensures that the working fluid surrounds the armature, which is crucial in applications where the coil remains energized over extended periods. This model also includes manual override options with a detent mechanism designed for temporary actuation; however, it's worth noting that these mechanisms have a mechanical life expectancy of around 7,000 cycles. Special attention should be given to systems using EPDM seals with this cartridge as they are intended solely for phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The construction of the DMDADRV948 utilizes Sun\u2019s floating style to minimize internal part binding due to installation torque or cavity/cartridge machining variations. This feature contributes significantly to the durability and longevity of the valve in complex hydraulic systems.
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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