SUN HYDRAULICS
DMDAMRV748
$206.01 USD
- SUN HYDRAULICS
- Material:DMDAMRV748
- Model:DMDA-MRV@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 DMDAMRV748 (DMDAMRV748) is a solenoid-operated 3-way, 2-position cartridge valve specifically designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is engineered to handle maximum operating pressures up to 5000 psi (350 bar) with a flow capacity of 12 gpm (45 L/min). The solenoid tube assembly of the DMDAMRV748 is fatigue rated for demanding applications, ensuring durability and reliability under high-pressure conditions. A notable feature of this model is its closed transition between Spools B and R, enhancing performance by providing faster and more consistent response times during operation. This makes the valve particularly effective in pilot control applications where rapid actuation is crucial. Moreover, the DMDAMRV748 requires no minimum hydraulic pressure to operate, which allows for flexibility in various system configurations. For manual override operations, the valve includes a detent mechanism designed for temporary actuation with an expected mechanical life of approximately 7,000 cycles. It also incorporates Sun's floating style construction which minimizes internal parts binding\u2014a common issue in valves due to installation torque or machining variations. The valve\u2019s wet armature design means that the working fluid surrounds the armature; this setup needs careful consideration as it can lead to fluid degradation if the coil remains energized for extended periods. Additionally, cartridges with EPDM seals are recommended for use with phosphate ester fluids to avoid damage from petroleum-based substances. Interchangeability of coils with other Sun Series 1 solenoid products adds another layer of versatility, allowing users to adapt or replace components easily as per operational requirements. The robust design combined with advanced features makes the Sun Hydraulics DMDAMRV748 an optimal choice for high-stakes applications requiring precise fluid control and reliability.
The Sun Hydraulics DMDAMRV748 (DMDAMRV748) is a solenoid-operated 3-way, 2-position cartridge valve specifically designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is engineered to handle maximum operating pressures up to 5000 psi (350 bar) with a flow capacity of 12 gpm (45 L/min). The solenoid tube assembly of the DMDAMRV748 is fatigue rated for demanding applications, ensuring durability and reliability under high-pressure conditions. A notable feature of this model is its closed transition between Spools B and R, enhancing performance by providing faster and more consistent response times during operation. This makes the valve particularly effective in pilot control applications where rapid actuation is crucial. Moreover, the DMDAMRV748 requires no minimum hydraulic pressure to operate, which allows for flexibility in various system configurations. For manual override operations, the valve includes a detent mechanism designed for temporary actuation with an expected mechanical life of approximately 7,000 cycles. It also incorporates Sun's floating style construction which minimizes internal parts binding\u2014a common issue in valves due to installation torque or machining variations. The valve\u2019s wet armature design means that the working fluid surrounds the armature; this setup needs careful consideration as it can lead to fluid degradation if the coil remains energized for extended periods. Additionally, cartridges with EPDM seals are recommended for use with phosphate ester fluids to avoid damage from petroleum-based substances. Interchangeability of coils with other Sun Series 1 solenoid products adds another layer of versatility, allowing users to adapt or replace components easily as per operational requirements. The robust design combined with advanced features makes the Sun Hydraulics DMDAMRV748 an optimal choice for high-stakes applications requiring precise fluid control and reliability.
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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