SUN HYDRAULICS
DMDAMBN748
$156.17 USD
- SUN HYDRAULICS
- Material:DMDAMBN748
- Model:DMDA-MBN@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 DMDAMBN748 (DMDAMBN748) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is specifically designed for robust and efficient hydraulic control. It features a unique spool transition where Spools B and R are closed, enhancing performance by ensuring faster and more consistent response times, particularly useful in pilot control applications where capacity is less critical. With a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of 12 gpm (45 L/min), the DMDAMBN748 is well-suited for demanding hydraulic systems. The valve's solenoid tube assembly is fatigue rated for high-pressure service, ensuring durability and long-term reliability. It incorporates Sun's floating style construction, which minimizes internal parts binding\u2014a common issue due to installation torque or cavity/cartridge machining variations. This model also boasts quick response times with typical values around 50 ms and supports a high switching frequency of up to 15000 cycles/hr. For maintenance or manual operation, it includes a manual override feature with minimal force requirements and an expected mechanical life of approximately 7,000 cycles for the manual control assembly. Designed with versatility in mind, the DMDAMBN748 allows for interchangeable coils with other Sun Series 1 solenoid products and supports both EPDM seals for phosphate ester fluids and Viton seals for higher temperature resilience. This valve's wet armature design ensures that the working fluid surrounds the armature to manage heat during prolonged coil energization, making it suitable for various hydraulic fluids including water-glycol mixtures which are sensitive to high temperatures. Overall, the Sun Hydraulics DMDAMBN748 cartridge offers a reliable solution for advanced hydraulic systems requiring precise direction control under varying operational conditions.
The Sun Hydraulics DMDAMBN748 (DMDAMBN748) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is specifically designed for robust and efficient hydraulic control. It features a unique spool transition where Spools B and R are closed, enhancing performance by ensuring faster and more consistent response times, particularly useful in pilot control applications where capacity is less critical. With a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of 12 gpm (45 L/min), the DMDAMBN748 is well-suited for demanding hydraulic systems. The valve's solenoid tube assembly is fatigue rated for high-pressure service, ensuring durability and long-term reliability. It incorporates Sun's floating style construction, which minimizes internal parts binding\u2014a common issue due to installation torque or cavity/cartridge machining variations. This model also boasts quick response times with typical values around 50 ms and supports a high switching frequency of up to 15000 cycles/hr. For maintenance or manual operation, it includes a manual override feature with minimal force requirements and an expected mechanical life of approximately 7,000 cycles for the manual control assembly. Designed with versatility in mind, the DMDAMBN748 allows for interchangeable coils with other Sun Series 1 solenoid products and supports both EPDM seals for phosphate ester fluids and Viton seals for higher temperature resilience. This valve's wet armature design ensures that the working fluid surrounds the armature to manage heat during prolonged coil energization, making it suitable for various hydraulic fluids including water-glycol mixtures which are sensitive to high temperatures. Overall, the Sun Hydraulics DMDAMBN748 cartridge offers a reliable solution for advanced hydraulic systems requiring precise direction control under varying operational conditions.
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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