SUN HYDRAULICS
DMDAMBV748
$164.11 USD
- SUN HYDRAULICS
- Material:DMDAMBV748
- Model:DMDA-MBV@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 DMDAMBV748 (DMDAMBV748) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is built to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of 12 gpm (45 L/min). Its robust design includes a fatigue-rated solenoid tube assembly for demanding applications. The DMDAMBV748 features closed transitions between its two positions (Spools B and R), enhancing performance by ensuring faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. It operates without the need for minimum hydraulic pressure, making it versatile in various hydraulic circuits. This model incorporates Sun's floating style construction which reduces the risk of internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. The valve also supports interchangeable coils with other Sun Series 1 solenoid products, allowing flexible installation orientations. Equipped with EPDM seals, the DMDAMBV748 is specifically configured for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids as these can damage the seals. The manual override feature provided on models with D or L control is intended for temporary actuation only, with a mechanical life expectancy of around 7,000 cycles. Additional features include a wet armature design where the working fluid surrounds the armature\u2014important to consider if the coil remains energized over long periods due to potential breakdowns in certain fluid types like water-glycol mixtures. The typical response time of this valve is approximately 50 ms, and it supports a switching frequency up to 15,000 cycles/hr.
The Sun Hydraulics DMDAMBV748 (DMDAMBV748) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is built to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of 12 gpm (45 L/min). Its robust design includes a fatigue-rated solenoid tube assembly for demanding applications. The DMDAMBV748 features closed transitions between its two positions (Spools B and R), enhancing performance by ensuring faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. It operates without the need for minimum hydraulic pressure, making it versatile in various hydraulic circuits. This model incorporates Sun's floating style construction which reduces the risk of internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. The valve also supports interchangeable coils with other Sun Series 1 solenoid products, allowing flexible installation orientations. Equipped with EPDM seals, the DMDAMBV748 is specifically configured for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids as these can damage the seals. The manual override feature provided on models with D or L control is intended for temporary actuation only, with a mechanical life expectancy of around 7,000 cycles. Additional features include a wet armature design where the working fluid surrounds the armature\u2014important to consider if the coil remains energized over long periods due to potential breakdowns in certain fluid types like water-glycol mixtures. The typical response time of this valve is approximately 50 ms, and it supports a switching frequency up to 15,000 cycles/hr.
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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