SUN HYDRAULICS
DMDATPN728
$233.81 USD
- SUN HYDRAULICS
- Material:DMDATPN728
- Model:DMDA-TPN@728
- 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 DMDATPN728 (DMDATPN728) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed to operate seamlessly without minimum hydraulic pressure. It features a unique closed transition between spools B and R, optimizing performance by ensuring faster and more consistent response times especially useful in pilot control applications where capacity is less critical. The DMDATPN728 incorporates a fatigue-rated solenoid tube assembly capable of handling services up to 5000 psi (350 bar), making it robust for demanding applications. The design includes interchangeable coils with other Sun Series 1 solenoid products, which can be mounted in either direction for flexible installation options. Additionally, the valve benefits from Sun's floating style construction which minimizes internal part binding due to installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and typical response times of 50 ms, this valve ensures efficient operation. It has a maximum operating pressure of 5000 psi (350 bar) and can handle switching frequencies up to 15000 cycles/hr. The manual override feature requires minimal force and includes a detent mechanism for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. Configurations with EPDM seals are specified for systems using phosphate ester fluids; however, these should not be exposed to petroleum-based fluids as they could damage the seals. The wet armature design of the valve keeps the armature surrounded by working fluid which helps in managing heat but may affect certain fluid types over extended periods. This model is an essential component for systems requiring reliable and precise control in various hydraulic applications.
The Sun Hydraulics DMDATPN728 (DMDATPN728) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed to operate seamlessly without minimum hydraulic pressure. It features a unique closed transition between spools B and R, optimizing performance by ensuring faster and more consistent response times especially useful in pilot control applications where capacity is less critical. The DMDATPN728 incorporates a fatigue-rated solenoid tube assembly capable of handling services up to 5000 psi (350 bar), making it robust for demanding applications. The design includes interchangeable coils with other Sun Series 1 solenoid products, which can be mounted in either direction for flexible installation options. Additionally, the valve benefits from Sun's floating style construction which minimizes internal part binding due to installation torque or cavity/cartridge machining variations. With a maximum flow capacity of 12 gpm (45 L/min) and typical response times of 50 ms, this valve ensures efficient operation. It has a maximum operating pressure of 5000 psi (350 bar) and can handle switching frequencies up to 15000 cycles/hr. The manual override feature requires minimal force and includes a detent mechanism for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. Configurations with EPDM seals are specified for systems using phosphate ester fluids; however, these should not be exposed to petroleum-based fluids as they could damage the seals. The wet armature design of the valve keeps the armature surrounded by working fluid which helps in managing heat but may affect certain fluid types over extended periods. This model is an essential component for systems requiring reliable and precise control in various hydraulic applications.
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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