SUN HYDRAULICS
DMDAXRV748
$198.06 USD
- SUN HYDRAULICS
- Material:DMDAXRV748
- Model:DMDA-XRV@748
- 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 DMDAXRV748 (DMDAXRV748) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust operation in hydraulic systems, featuring a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar). The valve's unique construction includes closed transitions between Spools B and R, enhancing performance by ensuring faster and more consistent response times during operation, particularly suitable when used as pilot controls. The DMDAXRV748 operates without requiring a minimum hydraulic pressure, which makes it versatile for various applications. It features manual override options with the D or L control providing a detent mechanism intended for temporary actuation. The mechanical life expectancy of the manual control assembly is approximately 7,000 cycles. For environments using phosphate ester fluids, cartridges equipped with EPDM seals are recommended to avoid damage from petroleum-based substances. This model also incorporates a wet armature design where the working fluid surrounds the armature. This design consideration is crucial as prolonged energization of the coil could lead to fluid degradation if not properly managed. Additionally, it supports interchangeable coils with other Sun Series 1 solenoid products and allows mounting in either direction to accommodate different system configurations. The valve features Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. With a capacity of 12 gpm (45 L/min) and quick response times typically around 50 ms, this valve ensures efficient and reliable performance across a range of applications while maintaining maximum operating pressures up to 5000 psi (350 bar).
The Sun Hydraulics DMDAXRV748 (DMDAXRV748) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust operation in hydraulic systems, featuring a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar). The valve's unique construction includes closed transitions between Spools B and R, enhancing performance by ensuring faster and more consistent response times during operation, particularly suitable when used as pilot controls. The DMDAXRV748 operates without requiring a minimum hydraulic pressure, which makes it versatile for various applications. It features manual override options with the D or L control providing a detent mechanism intended for temporary actuation. The mechanical life expectancy of the manual control assembly is approximately 7,000 cycles. For environments using phosphate ester fluids, cartridges equipped with EPDM seals are recommended to avoid damage from petroleum-based substances. This model also incorporates a wet armature design where the working fluid surrounds the armature. This design consideration is crucial as prolonged energization of the coil could lead to fluid degradation if not properly managed. Additionally, it supports interchangeable coils with other Sun Series 1 solenoid products and allows mounting in either direction to accommodate different system configurations. The valve features Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. With a capacity of 12 gpm (45 L/min) and quick response times typically around 50 ms, this valve ensures efficient and reliable performance across a range of applications while maintaining maximum operating pressures up to 5000 psi (350 bar).
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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