SUN HYDRAULICS
DNDYXXV728
$277.49 USD
- SUN HYDRAULICS
- Material:DNDYXXV728
- Model:DNDY-XXV@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 DNDYXXV728 (DNDYXXV728) is a solenoid-operated, 6-way, 2-position cartridge valve designed for seamless switching between two separate hydraulic circuits. In its de-energized state, the valve connects ports P and T to the first circuit, and when energized, it switches to connect these ports to the second circuit. This valve is direct-acting and balanced spool in design, requiring no minimum hydraulic pressure for operation. It features a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar) for reliable service in demanding applications. This cartridge employs a wet armature design that allows the working fluid to surround the armature, aiding in heat dissipation generated by the coil. However, prolonged energization can lead to varnish formation in certain fluids like water-glycol mixtures. The valve offers various manual override options but is not compatible with weatherized coils when using manual overrides. It incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. The DNDYXXV728 supports a maximum flow capacity of 5 gpm (20 L/min) and a swift response time of approximately 50 ms. The valve is capable of enduring switching frequencies up to 15,000 cycles per hour, with minimal leakage rates under specified conditions. Coil configurations are versatile; offering multiple termination and voltage options with or without surge protection. Coils can be interchanged with other Sun Series 1 solenoid products and provide connector options rated up to IP69K for enhanced environmental protection. With a compact design featuring a solenoid tube diameter of .75 inches (19 mm) and weighing .60 lbs (0.30 kg), this cartridge is ideal for applications requiring efficient space utilization without compromising performance reliability or durability.
The Sun Hydraulics DNDYXXV728 (DNDYXXV728) is a solenoid-operated, 6-way, 2-position cartridge valve designed for seamless switching between two separate hydraulic circuits. In its de-energized state, the valve connects ports P and T to the first circuit, and when energized, it switches to connect these ports to the second circuit. This valve is direct-acting and balanced spool in design, requiring no minimum hydraulic pressure for operation. It features a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar) for reliable service in demanding applications. This cartridge employs a wet armature design that allows the working fluid to surround the armature, aiding in heat dissipation generated by the coil. However, prolonged energization can lead to varnish formation in certain fluids like water-glycol mixtures. The valve offers various manual override options but is not compatible with weatherized coils when using manual overrides. It incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. The DNDYXXV728 supports a maximum flow capacity of 5 gpm (20 L/min) and a swift response time of approximately 50 ms. The valve is capable of enduring switching frequencies up to 15,000 cycles per hour, with minimal leakage rates under specified conditions. Coil configurations are versatile; offering multiple termination and voltage options with or without surge protection. Coils can be interchanged with other Sun Series 1 solenoid products and provide connector options rated up to IP69K for enhanced environmental protection. With a compact design featuring a solenoid tube diameter of .75 inches (19 mm) and weighing .60 lbs (0.30 kg), this cartridge is ideal for applications requiring efficient space utilization without compromising performance reliability or durability.
This solenoid-operated 6-way, 2-position cartridge is a direct-acting, balanced spool valve. The typical use for this valve is to select between two separate circuits. The de-energized condition connects P and T to the first circuit and when energized connects P and T to the second circuit.
- 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.
- 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.
- 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.
- 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-61A |
| Series | 1 |
| Capacity | 5 gpm20 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: 990-461-006 |
| Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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