SUN HYDRAULICS
DMDALRN814
$231.13 USD
- SUN HYDRAULICS
- Material:DMDALRN814
- Model:DMDA-LRN@814
- 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 DMDALRN814 (DMDALRN814) is a solenoid-operated 3-way, 2-position cartridge valve that stands out for its direct-acting, balanced spool directional control. It is specifically designed to handle a maximum operating pressure of 5000 psi (350 bar) and offers a flow capacity of up to 12 gpm (45 L/min). This model features a unique construction that includes a fatigue-rated solenoid tube assembly, ensuring durability and reliability even under high-pressure conditions. The DMDALRN814 valve is equipped with spools B and R, which are closed during the transition between positions, enhancing performance by providing faster and more consistent response times especially in pilot control applications where capacity is less critical. The valve's direct actuation allows it to operate without any minimum hydraulic pressure, adding to its versatility in various hydraulic systems. For manual override operations, the DMDALRN814 includes a detent mechanism suitable for temporary actuation, with a mechanical life expectancy of about 7,000 cycles. It also incorporates EPDM seals suitable for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Additional features include interchangeable coils compatible with other Sun Series 1 solenoid products and a wet armature design that requires consideration of fluid type due to potential heat exposure from prolonged coil energization. The valve also benefits from Sun's floating style construction which minimizes internal parts binding caused by installation torque or machining variations in the cavity/cartridge setup. This model uses cavity T11A and has typical response times of around 50 ms for both switching on and off actions.
The Sun Hydraulics DMDALRN814 (DMDALRN814) is a solenoid-operated 3-way, 2-position cartridge valve that stands out for its direct-acting, balanced spool directional control. It is specifically designed to handle a maximum operating pressure of 5000 psi (350 bar) and offers a flow capacity of up to 12 gpm (45 L/min). This model features a unique construction that includes a fatigue-rated solenoid tube assembly, ensuring durability and reliability even under high-pressure conditions. The DMDALRN814 valve is equipped with spools B and R, which are closed during the transition between positions, enhancing performance by providing faster and more consistent response times especially in pilot control applications where capacity is less critical. The valve's direct actuation allows it to operate without any minimum hydraulic pressure, adding to its versatility in various hydraulic systems. For manual override operations, the DMDALRN814 includes a detent mechanism suitable for temporary actuation, with a mechanical life expectancy of about 7,000 cycles. It also incorporates EPDM seals suitable for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Additional features include interchangeable coils compatible with other Sun Series 1 solenoid products and a wet armature design that requires consideration of fluid type due to potential heat exposure from prolonged coil energization. The valve also benefits from Sun's floating style construction which minimizes internal parts binding caused by installation torque or machining variations in the cavity/cartridge setup. This model uses cavity T11A and has typical response times of around 50 ms for both switching on and off actions.
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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