SUN HYDRAULICS
DMDADRV528
$235.79 USD
- SUN HYDRAULICS
- Material:DMDADRV528
- Model:DMDA-DRV@528
- 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 DMDADRV528 (DMDADRV528) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is fatigue rated for 5000 psi (350 bar) service, making it suitable for demanding applications. The valve features closed transitions between its two positions, Spools B and R, enhancing performance by providing faster and more consistent response times especially in pilot control applications where capacity is less critical. This model requires no minimum hydraulic pressure to operate and includes a manual override with a detent mechanism designed for temporary actuation. The mechanical life expectancy of the manual control assembly (D, L, and T models) is approximately 7,000 cycles. For systems using phosphate ester fluids, cartridges with EPDM seals are recommended; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. The DMDADRV528 employs a wet armature design where the working fluid surrounds the armature which is beneficial but requires consideration of fluid type due to potential breakdown from prolonged heat exposure. Additionally, the coils of this valve are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Key specifications include a flow capacity of 12 gpm (45 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 50 ms, and maximum valve leakage at 3000 psi rated at 5 in\u00b3/min. The valve also supports a switching frequency up to 15,000 cycles per hour. Installation features include a solenoid tube diameter of .75 in (19 mm), hex size of .875 in (22.2 mm), and an installation torque between 30-35 lbf\u00b7ft (41-47 Nm). The valve's weight is approximately .60 lb (0.30 kg).
The Sun Hydraulics DMDADRV528 (DMDADRV528) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is fatigue rated for 5000 psi (350 bar) service, making it suitable for demanding applications. The valve features closed transitions between its two positions, Spools B and R, enhancing performance by providing faster and more consistent response times especially in pilot control applications where capacity is less critical. This model requires no minimum hydraulic pressure to operate and includes a manual override with a detent mechanism designed for temporary actuation. The mechanical life expectancy of the manual control assembly (D, L, and T models) is approximately 7,000 cycles. For systems using phosphate ester fluids, cartridges with EPDM seals are recommended; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. The DMDADRV528 employs a wet armature design where the working fluid surrounds the armature which is beneficial but requires consideration of fluid type due to potential breakdown from prolonged heat exposure. Additionally, the coils of this valve are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Key specifications include a flow capacity of 12 gpm (45 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 50 ms, and maximum valve leakage at 3000 psi rated at 5 in\u00b3/min. The valve also supports a switching frequency up to 15,000 cycles per hour. Installation features include a solenoid tube diameter of .75 in (19 mm), hex size of .875 in (22.2 mm), and an installation torque between 30-35 lbf\u00b7ft (41-47 Nm). The valve's weight is approximately .60 lb (0.30 kg).
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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