SUN HYDRAULICS
DMDATRV728
$235.79 USD
- SUN HYDRAULICS
- Material:DMDATRV728
- Model:DMDA-TRV@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 DMDATRV728 (DMDATRV728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve operates efficiently with no minimum hydraulic pressure required, making it versatile for various applications. The valve features a fatigue-rated solenoid tube assembly suitable for up to 5000 psi (350 bar) service, ensuring durability and reliability under high-pressure conditions. Equipped with spools B and R, the DMDATRV728 provides closed transitions between positions to enhance performance limits while sacrificing some capacity. This characteristic is particularly beneficial in pilot control applications where speed and consistency are critical, and capacity is less of a concern. The manual override option available with the D or L control models uses a detent mechanism designed for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. For environments using phosphate ester fluids, cartridges configured with EPDM seals are recommended to prevent damage from petroleum-based substances. Additionally, the valve\u2019s wet armature design allows fluid to surround the armature which may affect performance if exposed to prolonged heat during extended coil energization. The DMDATRV728 can handle flow capacities up to 12 gpm (45 L/min) and features interchangeable coils compatible with other Sun Series 1 solenoid products. It also incorporates Sun\u2019s floating style construction that minimizes internal part binding due to installation variances or cavity-cartridge machining discrepancies. With robust construction and versatile configuration options, this valve is engineered to meet stringent operational demands in hydraulic systems requiring precise flow direction control.
The Sun Hydraulics DMDATRV728 (DMDATRV728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve operates efficiently with no minimum hydraulic pressure required, making it versatile for various applications. The valve features a fatigue-rated solenoid tube assembly suitable for up to 5000 psi (350 bar) service, ensuring durability and reliability under high-pressure conditions. Equipped with spools B and R, the DMDATRV728 provides closed transitions between positions to enhance performance limits while sacrificing some capacity. This characteristic is particularly beneficial in pilot control applications where speed and consistency are critical, and capacity is less of a concern. The manual override option available with the D or L control models uses a detent mechanism designed for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. For environments using phosphate ester fluids, cartridges configured with EPDM seals are recommended to prevent damage from petroleum-based substances. Additionally, the valve\u2019s wet armature design allows fluid to surround the armature which may affect performance if exposed to prolonged heat during extended coil energization. The DMDATRV728 can handle flow capacities up to 12 gpm (45 L/min) and features interchangeable coils compatible with other Sun Series 1 solenoid products. It also incorporates Sun\u2019s floating style construction that minimizes internal part binding due to installation variances or cavity-cartridge machining discrepancies. With robust construction and versatile configuration options, this valve is engineered to meet stringent operational demands in hydraulic systems requiring precise flow direction control.
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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