SUN HYDRAULICS
DMDADNN928
$232.82 USD
- SUN HYDRAULICS
- Material:DMDADNN928
- Model:DMDA-DNN@928
- 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 DMDADNN928 (DMDADNN928) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust and efficient operation in various hydraulic systems. It features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), ensuring durability and reliability even under demanding conditions. With its closed transition between positions, the DMDADNN928 valve offers enhanced performance by providing faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. The valve operates without a minimum hydraulic pressure requirement, adding to its versatility across different hydraulic setups. This model includes manual override options with a detent mechanism designed for temporary actuation, supporting up to approximately 7,000 cycles. It is essential to note that cartridges equipped with EPDM seals are specifically intended for use with phosphate ester fluids; exposure to petroleum-based substances could compromise the seal integrity. The wet armature design of the DMDADNN928 allows the working fluid to surround the armature, which can be significant when the coil is energized for extended periods as it may affect fluid integrity due to heat exposure. Interchangeability of coils with other Sun Series 1 solenoid products offers flexibility in maintenance and replacement processes. Additional technical specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, and a manual override force requirement of 5 lbs at 1000 psi for Port 1. The valve's compact design includes a hex size of 7/8 in (22.2 mm) and an installation torque range between 30 -35 lbf.ft (41 -47 Nm). With these features, the Sun Hydraulics DMDADNN928 valve stands out as a reliable choice for controlling flow direction efficiently in hydraulic systems.
The Sun Hydraulics DMDADNN928 (DMDADNN928) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust and efficient operation in various hydraulic systems. It features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), ensuring durability and reliability even under demanding conditions. With its closed transition between positions, the DMDADNN928 valve offers enhanced performance by providing faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. The valve operates without a minimum hydraulic pressure requirement, adding to its versatility across different hydraulic setups. This model includes manual override options with a detent mechanism designed for temporary actuation, supporting up to approximately 7,000 cycles. It is essential to note that cartridges equipped with EPDM seals are specifically intended for use with phosphate ester fluids; exposure to petroleum-based substances could compromise the seal integrity. The wet armature design of the DMDADNN928 allows the working fluid to surround the armature, which can be significant when the coil is energized for extended periods as it may affect fluid integrity due to heat exposure. Interchangeability of coils with other Sun Series 1 solenoid products offers flexibility in maintenance and replacement processes. Additional technical specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, and a manual override force requirement of 5 lbs at 1000 psi for Port 1. The valve's compact design includes a hex size of 7/8 in (22.2 mm) and an installation torque range between 30 -35 lbf.ft (41 -47 Nm). With these features, the Sun Hydraulics DMDADNN928 valve stands out as a reliable choice for controlling flow direction efficiently 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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