SUN HYDRAULICS
DMDADNV248
$233.11 USD
- SUN HYDRAULICS
- Material:DMDADNV248
- Model:DMDA-DNV@248
- 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 DMDADNV248 (DMDADNV248) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance applications. This direct-acting, balanced spool directional valve is engineered 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 closed transitions between its two positions, Spools B and R, enhancing performance by providing faster and more consistent response times in pilot control setups where capacity is less critical. The DMDADNV248 utilizes a wet armature design, where the working fluid surrounds the armature. This design choice is crucial for understanding its operational environment since prolonged energization of the coil can lead to fluid breakdown in certain types such as water-glycol mixtures. It's also configured with EPDM seals suitable for phosphate ester fluids but incompatible with petroleum-based substances which could damage these seals. Moreover, this model incorporates interchangeable coils from Sun Series 1 solenoid products that can be mounted in either direction on the tube. The manual override feature included requires minimal force (5 lbs at 1000 psi) and has a stroke of .10 inches (2.5 mm), primarily intended for temporary actuation with an expected mechanical life of about 7,000 cycles. This valve also benefits from Sun\u2019s floating style construction that minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With typical response times around 50 ms and capable of switching frequencies up to 15,000 cycles/hr, the DMDADNV248 offers robust performance suited for various hydraulic systems demanding precise control and reliability.
The Sun Hydraulics DMDADNV248 (DMDADNV248) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance applications. This direct-acting, balanced spool directional valve is engineered 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 closed transitions between its two positions, Spools B and R, enhancing performance by providing faster and more consistent response times in pilot control setups where capacity is less critical. The DMDADNV248 utilizes a wet armature design, where the working fluid surrounds the armature. This design choice is crucial for understanding its operational environment since prolonged energization of the coil can lead to fluid breakdown in certain types such as water-glycol mixtures. It's also configured with EPDM seals suitable for phosphate ester fluids but incompatible with petroleum-based substances which could damage these seals. Moreover, this model incorporates interchangeable coils from Sun Series 1 solenoid products that can be mounted in either direction on the tube. The manual override feature included requires minimal force (5 lbs at 1000 psi) and has a stroke of .10 inches (2.5 mm), primarily intended for temporary actuation with an expected mechanical life of about 7,000 cycles. This valve also benefits from Sun\u2019s floating style construction that minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With typical response times around 50 ms and capable of switching frequencies up to 15,000 cycles/hr, the DMDADNV248 offers robust performance suited for various hydraulic systems demanding precise control 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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