SUN HYDRAULICS
DNCATAV728
$183.96 USD
- SUN HYDRAULICS
- Material:DNCATAV728
- Model:DNCA-TAV@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 DNCATAV728 (DNCATAV728) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. It features a closed transition between positions to minimize oil loss during shifting, which is particularly beneficial in pilot control circuits. The valve is optimized with port 3 as the inlet and port 1 as the tank; although reverse flow is possible, it is not recommended due to performance constraints. The solenoid tube assembly can withstand pressures up to 5000 psi (350 bar), and the valve requires no minimum hydraulic pressure for operation. Designed with EPDM seals, it is suitable for systems using phosphate ester fluids but should be kept away from petroleum-based substances to prevent seal damage. This valve incorporates a wet armature design where the working fluid surrounds the armature, potentially affecting function if exposed to heat over extended periods\u2014especially in water-glycol mixtures prone to varnish formation. The DNCATAV728 offers various coil termination and voltage options, including configurations with surge protection. Its high-efficiency solenoid design ensures reliable shifting by providing significant spool actuating force per watt of power used. Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Connector options support ratings up to IP69K, ensuring robust environmental protection when paired with weatherized coils and kits. The valve's construction minimizes internal part binding due to excessive installation torque or machining variations in cavity/cartridge setups. It fits into a T-31A cavity and has an 8 gpm (30 L/min) capacity at maximum operating pressure of 5000 psi (350 bar). Typical response time is around 50 milliseconds, with a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The model weighs approximately .60 lbs (.30 kg), and Viton seal kits are available for both cartridge and coil components.
The Sun Hydraulics DNCATAV728 (DNCATAV728) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. It features a closed transition between positions to minimize oil loss during shifting, which is particularly beneficial in pilot control circuits. The valve is optimized with port 3 as the inlet and port 1 as the tank; although reverse flow is possible, it is not recommended due to performance constraints. The solenoid tube assembly can withstand pressures up to 5000 psi (350 bar), and the valve requires no minimum hydraulic pressure for operation. Designed with EPDM seals, it is suitable for systems using phosphate ester fluids but should be kept away from petroleum-based substances to prevent seal damage. This valve incorporates a wet armature design where the working fluid surrounds the armature, potentially affecting function if exposed to heat over extended periods\u2014especially in water-glycol mixtures prone to varnish formation. The DNCATAV728 offers various coil termination and voltage options, including configurations with surge protection. Its high-efficiency solenoid design ensures reliable shifting by providing significant spool actuating force per watt of power used. Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Connector options support ratings up to IP69K, ensuring robust environmental protection when paired with weatherized coils and kits. The valve's construction minimizes internal part binding due to excessive installation torque or machining variations in cavity/cartridge setups. It fits into a T-31A cavity and has an 8 gpm (30 L/min) capacity at maximum operating pressure of 5000 psi (350 bar). Typical response time is around 50 milliseconds, with a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The model weighs approximately .60 lbs (.30 kg), and Viton seal kits are available for both cartridge and coil components.
This solenoid-operated, 4-way, 2-position cartridge is a direct-acting, balanced spool directional valve. The transition between positions is closed. The closed transition greatly reduces the loss of oil when shifting which can be of particular importance in pilot control circuits.
- Valve capacity is based on port 3 as the inlet and port 1 as the tank. Although reverse flow is possible, the same performance cannot be guaranteed and is not recommended.
- 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.
- 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.
- 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 | 8 gpm30 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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