SUN HYDRAULICS
DMDALRN648
$224.38 USD
- SUN HYDRAULICS
- Material:DMDALRN648
- Model:DMDA-LRN@648
- 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 DMDALRN648 (DMDALRN648) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control in various applications. This direct-acting, balanced spool directional valve features a fatigue rating for service up to 5000 psi (350 bar), ensuring robust performance even under demanding conditions. The closed transitions between Spools B and R enhance performance by providing faster and more consistent response times, making it ideal for pilot control applications where capacity is less critical. The DMDALRN648 is equipped with manual override options including the D or L control, which uses a detent mechanism intended for temporary actuation. The mechanical life expectancy of this manual control assembly is approximately 7,000 cycles. Additionally, the valve incorporates EPDM seals suitable for systems using phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Featuring a wet armature design, the DMDALRN648's working fluid surrounds the armature which can be susceptible to heat during prolonged coil energization. This may affect fluid integrity over time, particularly with water-glycol mixtures which could degrade and form varnishes impacting cartridge function. The valve's coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction for added flexibility. For installation ease and reliability, this model uses Sun's floating style construction to minimize internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and rapid response time typically around 50 ms, the DMDALRN648 offers efficient switching capabilities up to 15,000 cycles per hour while maintaining tight control over leakage and pressure handling throughout its operation.
The Sun Hydraulics DMDALRN648 (DMDALRN648) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control in various applications. This direct-acting, balanced spool directional valve features a fatigue rating for service up to 5000 psi (350 bar), ensuring robust performance even under demanding conditions. The closed transitions between Spools B and R enhance performance by providing faster and more consistent response times, making it ideal for pilot control applications where capacity is less critical. The DMDALRN648 is equipped with manual override options including the D or L control, which uses a detent mechanism intended for temporary actuation. The mechanical life expectancy of this manual control assembly is approximately 7,000 cycles. Additionally, the valve incorporates EPDM seals suitable for systems using phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Featuring a wet armature design, the DMDALRN648's working fluid surrounds the armature which can be susceptible to heat during prolonged coil energization. This may affect fluid integrity over time, particularly with water-glycol mixtures which could degrade and form varnishes impacting cartridge function. The valve's coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction for added flexibility. For installation ease and reliability, this model uses Sun's floating style construction to minimize internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and rapid response time typically around 50 ms, the DMDALRN648 offers efficient switching capabilities up to 15,000 cycles per hour while maintaining tight control over leakage and pressure handling throughout its operation.
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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