SUN HYDRAULICS
DNDCXHV728
$237.08 USD
- SUN HYDRAULICS
- Material:DNDCXHV728
- Model:DNDC-XHV@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 DNDCXHV728 (Material Number: DNDCXHV728) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for precise hydraulic control applications. This valve is spring-centered to a neutral position and allows for versatile flow configurations. When coil A is energized, the fluid flows from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B directs the flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is fatigue-rated for service at pressures up to 5000 psi (350 bar), ensuring durability under demanding conditions. This valve requires no minimum hydraulic pressure for operation due to its direct actuation design. In differential flow circuits, it is recommended that higher return flow be directed through port 2 A to port 1 T. It features EPDM seals suitable for systems with phosphate ester fluids; however, exposure to petroleum-based fluids can damage these seals. The valve employs a wet armature design that allows the working fluid to surround the armature, which can be influenced by heat generated during prolonged coil activation. The high-efficiency solenoid design provides reliable valve shifting with significant spool actuating force per watt expended. Coils are interchangeable with other Sun Series 1 solenoid products and offer diverse termination and voltage options, including weatherized versions for enhanced environmental protection. The unique floating style construction minimizes internal binding risks due to installation torque or machining variations. Additional specifications include a cavity size of T-31A, a capacity of up to 5 gpm (20 L/min), typical response time of approximately 50 ms, maximum leakage of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), switching frequency up to 15,000 cycles per hour, and a solenoid tube diameter of .75 in (19 mm). Installation requires torque between 30-35 lbf ft (41-47 Nm).
The Sun Hydraulics DNDCXHV728 (Material Number: DNDCXHV728) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for precise hydraulic control applications. This valve is spring-centered to a neutral position and allows for versatile flow configurations. When coil A is energized, the fluid flows from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B directs the flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is fatigue-rated for service at pressures up to 5000 psi (350 bar), ensuring durability under demanding conditions. This valve requires no minimum hydraulic pressure for operation due to its direct actuation design. In differential flow circuits, it is recommended that higher return flow be directed through port 2 A to port 1 T. It features EPDM seals suitable for systems with phosphate ester fluids; however, exposure to petroleum-based fluids can damage these seals. The valve employs a wet armature design that allows the working fluid to surround the armature, which can be influenced by heat generated during prolonged coil activation. The high-efficiency solenoid design provides reliable valve shifting with significant spool actuating force per watt expended. Coils are interchangeable with other Sun Series 1 solenoid products and offer diverse termination and voltage options, including weatherized versions for enhanced environmental protection. The unique floating style construction minimizes internal binding risks due to installation torque or machining variations. Additional specifications include a cavity size of T-31A, a capacity of up to 5 gpm (20 L/min), typical response time of approximately 50 ms, maximum leakage of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), switching frequency up to 15,000 cycles per hour, and a solenoid tube diameter of .75 in (19 mm). Installation requires torque between 30-35 lbf ft (41-47 Nm).
This direct acting, solenoid-operated, 4-way, 3-position spool valve is spring centered to the neutral position. When coil A is energized, the flow is from port 3 (P) to port 2 (A) and from port 4 (B) to port 1 (T). When coil B is energized, the flow is from port 3 to port 4 and from port 2 to port 1.
- 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.
- In differential flow circuits, the higher return flow should be directed through port 2 (A) to port 1 (T).
- 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 | 5 gpm20 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 |
| 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 |
| Seal kit - Cartridge | Viton: 990-431-006 |
| Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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