SUN HYDRAULICS
DMDATNV748
$235.79 USD
- SUN HYDRAULICS
- Material:DMDATNV748
- Model:DMDA-TNV@748
- 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 DMDATNV748 (DMDATNV748) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve operates without the need for a minimum hydraulic pressure, enhancing its reliability and performance across a range of applications. The valve features a robust design with a fatigue rating of 5000 psi (350 bar), making it suitable for demanding operational conditions. Equipped with EPDM seals, the DMDATNV748 is specifically configured for use with phosphate ester fluids, ensuring compatibility and longevity in specialized environments. However, these seals are sensitive to petroleum-based fluids which can cause damage. The valve\u2019s wet armature design helps in cooling but requires consideration of fluid characteristics as prolonged exposure to heat may degrade certain fluid types. This model offers interchangeable coils with other Sun Series 1 solenoid products for flexible installation options. The floating style construction minimizes internal parts binding, which can result from excessive installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and rapid response times typically around 50 ms, the DMDATNV748 provides efficient and reliable performance. Additional features include manual override capabilities with a mechanical life expectancy of approximately 7,000 cycles and switching frequency up to 15,000 cycles/hr. This makes the DMDATNV748 an ideal choice for applications requiring frequent operation with reliable manual intervention options. Its compact size and moderate weight (.60 lb/0.30 kg) facilitate easy installation and maintenance in space-constrained setups.
The Sun Hydraulics DMDATNV748 (DMDATNV748) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve operates without the need for a minimum hydraulic pressure, enhancing its reliability and performance across a range of applications. The valve features a robust design with a fatigue rating of 5000 psi (350 bar), making it suitable for demanding operational conditions. Equipped with EPDM seals, the DMDATNV748 is specifically configured for use with phosphate ester fluids, ensuring compatibility and longevity in specialized environments. However, these seals are sensitive to petroleum-based fluids which can cause damage. The valve\u2019s wet armature design helps in cooling but requires consideration of fluid characteristics as prolonged exposure to heat may degrade certain fluid types. This model offers interchangeable coils with other Sun Series 1 solenoid products for flexible installation options. The floating style construction minimizes internal parts binding, which can result from excessive installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and rapid response times typically around 50 ms, the DMDATNV748 provides efficient and reliable performance. Additional features include manual override capabilities with a mechanical life expectancy of approximately 7,000 cycles and switching frequency up to 15,000 cycles/hr. This makes the DMDATNV748 an ideal choice for applications requiring frequent operation with reliable manual intervention options. Its compact size and moderate weight (.60 lb/0.30 kg) facilitate easy installation and maintenance in space-constrained 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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