SUN HYDRAULICS
DMDADNN71219
$238.47 USD
- SUN HYDRAULICS
- Material:DMDADNN71219
- Model:DMDA-DNN@71219
- 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 DMDADNN71219 (DMDADNN71219) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control. This direct-acting, balanced spool directional valve features a robust design with a fatigue rating suitable for up to 5000 psi (350 bar) service, ensuring reliability in demanding applications. It has a unique closed transition between spools B and R, enhancing performance by providing faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. The valve operates without the need for minimum hydraulic pressure, offering flexibility across various hydraulic systems. The manual override feature included in models with D or L control is intended for temporary actuation, with a mechanical life expectancy of around 7,000 cycles. For environments using phosphate ester fluids, cartridges equipped with EPDM seals are recommended; however, these should not be exposed to petroleum-based fluids as they can degrade the seals. Another notable feature of the DMDADNN71219 is its wet armature design which surrounds the armature with working fluid to manage heat during prolonged energization\u2014important when using fluids like water-glycol mixtures that are sensitive to high temperatures. The valve's coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction for added installation versatility. This model also incorporates Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With a maximum operating pressure of 5000 psi and a flow capacity of up to 12 gpm (45 L/min), this valve is an efficient solution for advanced hydraulic system configurations requiring reliable and precise control.
The Sun Hydraulics DMDADNN71219 (DMDADNN71219) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control. This direct-acting, balanced spool directional valve features a robust design with a fatigue rating suitable for up to 5000 psi (350 bar) service, ensuring reliability in demanding applications. It has a unique closed transition between spools B and R, enhancing performance by providing faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. The valve operates without the need for minimum hydraulic pressure, offering flexibility across various hydraulic systems. The manual override feature included in models with D or L control is intended for temporary actuation, with a mechanical life expectancy of around 7,000 cycles. For environments using phosphate ester fluids, cartridges equipped with EPDM seals are recommended; however, these should not be exposed to petroleum-based fluids as they can degrade the seals. Another notable feature of the DMDADNN71219 is its wet armature design which surrounds the armature with working fluid to manage heat during prolonged energization\u2014important when using fluids like water-glycol mixtures that are sensitive to high temperatures. The valve's coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction for added installation versatility. This model also incorporates Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With a maximum operating pressure of 5000 psi and a flow capacity of up to 12 gpm (45 L/min), this valve is an efficient solution for advanced hydraulic system configurations requiring reliable and precise control.
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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