SUN HYDRAULICS
DMDADNV71299
$248.00 USD
- SUN HYDRAULICS
- Material:DMDADNV71299
- Model:DMDA-DNV@71299
- 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 DMDADNV71299 (DMDADNV71299) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve features a unique construction that allows for precise control and reliability in various operational environments. Notably, the valve operates efficiently without any minimum hydraulic pressure requirement, making it versatile for different system conditions. The DMDADNV71299 is equipped with fatigue-rated solenoid tube assemblies capable of handling pressures up to 5000 psi (350 bar), ensuring durability and longevity under high-pressure conditions. It incorporates closed transitions between spool positions B and R, optimizing performance by providing faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. This model also features interchangeable coils compatible with other Sun Series 1 solenoid products, which can be mounted in either direction for added installation flexibility. The wet armature design of the valve helps in cooling but requires consideration regarding the type of fluid used; specifically, EPDM seals are used for systems with phosphate ester fluids to avoid damage from petroleum-based substances. Furthermore, the DMDADNV71299 includes a manual override option with a detent mechanism designed for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. The valve's design minimizes internal parts binding through Sun\u2019s floating style construction which compensates for potential excessive installation torque and machining variations in cavity/cartridge setups. Overall, this model provides an effective solution for directing flow within hydraulic systems, ensuring both high performance and reliability essential for demanding applications.
The Sun Hydraulics DMDADNV71299 (DMDADNV71299) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve features a unique construction that allows for precise control and reliability in various operational environments. Notably, the valve operates efficiently without any minimum hydraulic pressure requirement, making it versatile for different system conditions. The DMDADNV71299 is equipped with fatigue-rated solenoid tube assemblies capable of handling pressures up to 5000 psi (350 bar), ensuring durability and longevity under high-pressure conditions. It incorporates closed transitions between spool positions B and R, optimizing performance by providing faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. This model also features interchangeable coils compatible with other Sun Series 1 solenoid products, which can be mounted in either direction for added installation flexibility. The wet armature design of the valve helps in cooling but requires consideration regarding the type of fluid used; specifically, EPDM seals are used for systems with phosphate ester fluids to avoid damage from petroleum-based substances. Furthermore, the DMDADNV71299 includes a manual override option with a detent mechanism designed for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. The valve's design minimizes internal parts binding through Sun\u2019s floating style construction which compensates for potential excessive installation torque and machining variations in cavity/cartridge setups. Overall, this model provides an effective solution for directing flow within hydraulic systems, ensuring both high performance and reliability essential for demanding applications.
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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