SUN HYDRAULICS
DMDALBN812N
$184.96 USD
- SUN HYDRAULICS
- Material:DMDALBN812N
- Model:DMDA-LBN@812N
- 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 DMDALBN812N (DMDALBN812N) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. It features a direct-acting, balanced spool directional mechanism that ensures efficient control with a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of 12 gpm (45 L/min). The valve's response time is notably quick at approximately 50 ms, facilitating rapid system reactions. This model is particularly noted for its closed transition between Spools B and R, optimizing performance by providing faster and more consistent response times when used as pilot controls. The manual override feature included in this model has a mechanical life expectancy of about 7,000 cycles and requires only a minimal force to operate. Constructed with durability in mind, the DMDALBN812N utilizes EPDM seals suitable for systems using phosphate ester fluids, though it should not be exposed to petroleum-based substances which could degrade the seals. Its wet armature design allows the working fluid to surround the armature, potentially affecting fluid integrity under prolonged energization due to heat exposure. Interchangeability is another key feature; the coils are compatible with other Sun Series 1 solenoid products and can be mounted in either direction for added flexibility. Additionally, this valve incorporates Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. The robust construction and thoughtful design make the DMDALBN812N an excellent choice for demanding applications requiring reliable directional control and rapid response times in hydraulic systems.
The Sun Hydraulics DMDALBN812N (DMDALBN812N) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. It features a direct-acting, balanced spool directional mechanism that ensures efficient control with a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of 12 gpm (45 L/min). The valve's response time is notably quick at approximately 50 ms, facilitating rapid system reactions. This model is particularly noted for its closed transition between Spools B and R, optimizing performance by providing faster and more consistent response times when used as pilot controls. The manual override feature included in this model has a mechanical life expectancy of about 7,000 cycles and requires only a minimal force to operate. Constructed with durability in mind, the DMDALBN812N utilizes EPDM seals suitable for systems using phosphate ester fluids, though it should not be exposed to petroleum-based substances which could degrade the seals. Its wet armature design allows the working fluid to surround the armature, potentially affecting fluid integrity under prolonged energization due to heat exposure. Interchangeability is another key feature; the coils are compatible with other Sun Series 1 solenoid products and can be mounted in either direction for added flexibility. Additionally, this valve incorporates Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. The robust construction and thoughtful design make the DMDALBN812N an excellent choice for demanding applications requiring reliable directional control and rapid response times in hydraulic systems.
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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