SUN HYDRAULICS
DMDAMBN812
$155.77 USD
- SUN HYDRAULICS
- Material:DMDAMBN812
- Model:DMDA-MBN@812
- 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 DMDAMBN812 (DMDAMBN812) is a high-performance solenoid-operated 3-way, 2-position cartridge valve that features a direct-acting, balanced spool directional design. Engineered for robust operation, this valve is fatigue rated for up to 5000 psi (350 bar), making it suitable for high-pressure applications. It operates efficiently with no minimum hydraulic pressure required for activation. This model incorporates a wet armature design, wherein the working fluid surrounds the armature and absorbs the heat generated by the coil. This feature is crucial in applications where the coil remains energized for extended periods, although care must be taken with fluid selection to avoid breakdown and varnish formation that could impair functionality. The DMDAMBN812 uses EPDM seals compatible with phosphate ester fluids but should not be exposed to petroleum-based fluids which would degrade these seals. The cartridge's manual override option includes a detent mechanism designed primarily for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. Additionally, it offers interchangeable coils compatible with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response times of 50 ms, and a maximum operating pressure of 5000 psi (350 bar). The valve also features Sun's floating style construction which minimizes internal parts binding due to installation torque or machining variations in cavity/cartridge. This design detail enhances reliability and durability in various installation environments. Overall, the Sun Hydraulics DMDAMBN812 valve is designed for efficient performance and reliability in specialized hydraulic systems requiring precise control under high-pressure conditions.
The Sun Hydraulics DMDAMBN812 (DMDAMBN812) is a high-performance solenoid-operated 3-way, 2-position cartridge valve that features a direct-acting, balanced spool directional design. Engineered for robust operation, this valve is fatigue rated for up to 5000 psi (350 bar), making it suitable for high-pressure applications. It operates efficiently with no minimum hydraulic pressure required for activation. This model incorporates a wet armature design, wherein the working fluid surrounds the armature and absorbs the heat generated by the coil. This feature is crucial in applications where the coil remains energized for extended periods, although care must be taken with fluid selection to avoid breakdown and varnish formation that could impair functionality. The DMDAMBN812 uses EPDM seals compatible with phosphate ester fluids but should not be exposed to petroleum-based fluids which would degrade these seals. The cartridge's manual override option includes a detent mechanism designed primarily for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. Additionally, it offers interchangeable coils compatible with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response times of 50 ms, and a maximum operating pressure of 5000 psi (350 bar). The valve also features Sun's floating style construction which minimizes internal parts binding due to installation torque or machining variations in cavity/cartridge. This design detail enhances reliability and durability in various installation environments. Overall, the Sun Hydraulics DMDAMBN812 valve is designed for efficient performance and reliability in specialized hydraulic systems requiring precise control under high-pressure 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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