SUN HYDRAULICS
DMDATNN748
$227.85 USD
- SUN HYDRAULICS
- Material:DMDATNN748
- Model:DMDA-TNN@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 DMDATNN748 (DMDATNN748) is a high-performance solenoid-operated 3-way, 2-position cartridge valve, designed for direct-acting and balanced spool directional control. This model is particularly noted for its robust construction which includes a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar). It features spools B and R that are closed during the transition between two positions, an attribute that enhances performance by providing faster and more consistent response times, especially suitable for applications where capacity is not a critical factor. The DMDATNN748 operates without requiring a minimum hydraulic pressure, making it versatile for various operational environments. For models equipped with D or L control options, there is a detent mechanism in the manual override designed for temporary actuation with a mechanical life expectancy of about 7,000 cycles. The valve also supports EPDM seals suitable for phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they could get damaged. Another key feature of this model is its wet armature design which allows the working fluid to surround the armature. This design can affect fluid integrity if the coil remains energized over extended periods due to heat exposure. The interchangeability of coils with other Sun Series 1 solenoid products adds to its adaptability and ease of use. The valve also incorporates Sun's floating style construction which minimizes internal part binding due to excessive installation torque or variations in cavity/cartridge machining. With specifications like a maximum flow capacity of 12 gpm (45 L/min), extremely quick response times typical at 50 ms, and a compact manual override mechanism requiring minimal force, the DMDATNN748 stands out as an efficient solution in its class.
The Sun Hydraulics DMDATNN748 (DMDATNN748) is a high-performance solenoid-operated 3-way, 2-position cartridge valve, designed for direct-acting and balanced spool directional control. This model is particularly noted for its robust construction which includes a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar). It features spools B and R that are closed during the transition between two positions, an attribute that enhances performance by providing faster and more consistent response times, especially suitable for applications where capacity is not a critical factor. The DMDATNN748 operates without requiring a minimum hydraulic pressure, making it versatile for various operational environments. For models equipped with D or L control options, there is a detent mechanism in the manual override designed for temporary actuation with a mechanical life expectancy of about 7,000 cycles. The valve also supports EPDM seals suitable for phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they could get damaged. Another key feature of this model is its wet armature design which allows the working fluid to surround the armature. This design can affect fluid integrity if the coil remains energized over extended periods due to heat exposure. The interchangeability of coils with other Sun Series 1 solenoid products adds to its adaptability and ease of use. The valve also incorporates Sun's floating style construction which minimizes internal part binding due to excessive installation torque or variations in cavity/cartridge machining. With specifications like a maximum flow capacity of 12 gpm (45 L/min), extremely quick response times typical at 50 ms, and a compact manual override mechanism requiring minimal force, the DMDATNN748 stands out as an efficient solution in its class.
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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