SUN HYDRAULICS
DMDAXBV728
$156.17 USD
- SUN HYDRAULICS
- Material:DMDAXBV728
- Model:DMDA-XBV@728
- 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 DMDAXBV728 (DMDAXBV728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This model is particularly suited for applications requiring robust performance with a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of up to 12 gpm (45 L/min). The valve features closed transitions between Spools B and R, enhancing performance by ensuring faster and more consistent response times, especially useful in pilot control operations where capacity is less critical. The DMDAXBV728 operates without needing a minimum hydraulic pressure, making it versatile for various hydraulic systems. It includes manual overrides with detent mechanisms designed for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. The design incorporates EPDM seals suitable for phosphate ester fluids; however, these seals must not be exposed to petroleum-based substances to avoid damage. A notable aspect of the DMDAXBV728 is its wet armature design where the working fluid surrounds the armature. This setup requires consideration as prolonged energization can lead to fluid degradation at high temperatures. For maintenance and compatibility, the coils of this model are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. This valve also benefits from Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. With a fast response time typically around 50 ms and a maximum leakage at 3000 psi rated at 5 in\u00b3/min., this valve ensures efficient operation and reliability in demanding hydraulic setups.
The Sun Hydraulics DMDAXBV728 (DMDAXBV728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This model is particularly suited for applications requiring robust performance with a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of up to 12 gpm (45 L/min). The valve features closed transitions between Spools B and R, enhancing performance by ensuring faster and more consistent response times, especially useful in pilot control operations where capacity is less critical. The DMDAXBV728 operates without needing a minimum hydraulic pressure, making it versatile for various hydraulic systems. It includes manual overrides with detent mechanisms designed for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. The design incorporates EPDM seals suitable for phosphate ester fluids; however, these seals must not be exposed to petroleum-based substances to avoid damage. A notable aspect of the DMDAXBV728 is its wet armature design where the working fluid surrounds the armature. This setup requires consideration as prolonged energization can lead to fluid degradation at high temperatures. For maintenance and compatibility, the coils of this model are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. This valve also benefits from Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. With a fast response time typically around 50 ms and a maximum leakage at 3000 psi rated at 5 in\u00b3/min., this valve ensures efficient operation and reliability in demanding hydraulic setups.
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 |
Show FAQ