SUN HYDRAULICS
DNDAMYV728
$235.99 USD
- SUN HYDRAULICS
- Material:DNDAMYV728
- Model:DNDA-MYV@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 DNDAMYV728 (DNDAMYV728) is a solenoid-operated, 4-way, 2-position cartridge valve that features a direct-acting, balanced spool design. Engineered for high performance, this valve is rated for fatigue service up to 5000 psi (350 bar), making it suitable for demanding hydraulic applications. It operates without the need for minimum hydraulic pressure and includes multiple manual override options, although these are not compatible with weatherized coils. The manual override mechanism offers temporary actuation with a life expectancy of approximately 7,000 cycles when using the D or L controls. Designed with a wet armature system, the working fluid surrounds the armature and absorbs heat generated by the coil, which can affect long-term performance in certain fluid types like water-glycol mixtures. The valve supports various coil termination and voltage configurations, some of which include surge protection. Additionally, its solenoid boasts a unique magnetic design that maximizes efficiency by delivering high spool actuating force per watt expended. The DNDAMYV728 incorporates Sun's floating style construction to minimize internal binding from excessive torque or machining variations. It fits into T31A cavities and is part of Series 1 products with a capacity of 10 gpm (40 L/min). The valve's response time is typically around 50 milliseconds, and it features an impressive switching frequency of up to 15,000 cycles per hour. For installation, it requires a torque between 30-35 lbf ft (41-47 Nm) and has a hex size of .78 inches (22.2 mm). Weighing .60 lb (0.30 kg), this robust cartridge valve is equipped with Viton seals suitable for systems using phosphate ester fluids but not petroleum-based substances.
The Sun Hydraulics DNDAMYV728 (DNDAMYV728) is a solenoid-operated, 4-way, 2-position cartridge valve that features a direct-acting, balanced spool design. Engineered for high performance, this valve is rated for fatigue service up to 5000 psi (350 bar), making it suitable for demanding hydraulic applications. It operates without the need for minimum hydraulic pressure and includes multiple manual override options, although these are not compatible with weatherized coils. The manual override mechanism offers temporary actuation with a life expectancy of approximately 7,000 cycles when using the D or L controls. Designed with a wet armature system, the working fluid surrounds the armature and absorbs heat generated by the coil, which can affect long-term performance in certain fluid types like water-glycol mixtures. The valve supports various coil termination and voltage configurations, some of which include surge protection. Additionally, its solenoid boasts a unique magnetic design that maximizes efficiency by delivering high spool actuating force per watt expended. The DNDAMYV728 incorporates Sun's floating style construction to minimize internal binding from excessive torque or machining variations. It fits into T31A cavities and is part of Series 1 products with a capacity of 10 gpm (40 L/min). The valve's response time is typically around 50 milliseconds, and it features an impressive switching frequency of up to 15,000 cycles per hour. For installation, it requires a torque between 30-35 lbf ft (41-47 Nm) and has a hex size of .78 inches (22.2 mm). Weighing .60 lb (0.30 kg), this robust cartridge valve is equipped with Viton seals suitable for systems using phosphate ester fluids but not petroleum-based substances.
This solenoid-operated 4-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.
- This valve is direct actuated and requires no minimum hydraulic pressure for operation.
- This cartridge has several manual override choices, including no manual override. See the CONFIGURATION section. Please note: Manual override functionality is not compatible with weatherized coils.
- 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 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.
- A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
- The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
- Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details. Additional weatherized coils and kits are available for more complete environmental protection.
- 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-31A |
| Series | 1 |
| Capacity | 10 gpm40 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 50 ms50 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 10 in³/min.@3000 psi160 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: 990-431-006 |
| Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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