SUN HYDRAULICS
DNDCXTN812
$227.35 USD
- SUN HYDRAULICS
- Material:DNDCXTN812
- Model:DNDC-XTN@812
- 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 DNDCXTN812 (DNDCXTN812) is a direct acting, solenoid-operated, 4-way, 3-position spool valve that is spring-centered to the neutral position. This valve is designed to efficiently manage hydraulic flow with high precision. When coil A is energized, it directs the flow from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B allows flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is rated for fatigue at a maximum service pressure of 5000 psi (350 bar), making it highly reliable under demanding conditions. This valve does not require a minimum hydraulic pressure for operation due to its direct actuation. It features EPDM seals compatible with phosphate ester fluids but unsuitable for petroleum-based fluids. The valve's wet armature design allows the working fluid to absorb heat generated by the coil, which should be considered in prolonged operation scenarios as some fluids may degrade over time at elevated temperatures. The DNDCXTN812 offers various coil termination and voltage options, including surge protection configurations. Its high-efficiency solenoid design ensures effective spool actuation with minimal power consumption, contributing to reliable performance. Coils are interchangeable within the Sun Series 1 solenoid products and can be mounted bidirectionally on the tube. The valve incorporates Sun's floating style construction, minimizing potential binding issues due to excessive installation torque or machining variations in cavity/cartridge interfaces. With a capacity of up to 5 gpm (20 L/min) and maximum leakage of only 10 in\u00b3/min at specified conditions, this valve is optimized for high-frequency switching applications up to 15,000 cycles per hour. The product also offers robust environmental protection options through weatherized coils and kits suitable for harsh conditions.
The Sun Hydraulics DNDCXTN812 (DNDCXTN812) is a direct acting, solenoid-operated, 4-way, 3-position spool valve that is spring-centered to the neutral position. This valve is designed to efficiently manage hydraulic flow with high precision. When coil A is energized, it directs the flow from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B allows flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is rated for fatigue at a maximum service pressure of 5000 psi (350 bar), making it highly reliable under demanding conditions. This valve does not require a minimum hydraulic pressure for operation due to its direct actuation. It features EPDM seals compatible with phosphate ester fluids but unsuitable for petroleum-based fluids. The valve's wet armature design allows the working fluid to absorb heat generated by the coil, which should be considered in prolonged operation scenarios as some fluids may degrade over time at elevated temperatures. The DNDCXTN812 offers various coil termination and voltage options, including surge protection configurations. Its high-efficiency solenoid design ensures effective spool actuation with minimal power consumption, contributing to reliable performance. Coils are interchangeable within the Sun Series 1 solenoid products and can be mounted bidirectionally on the tube. The valve incorporates Sun's floating style construction, minimizing potential binding issues due to excessive installation torque or machining variations in cavity/cartridge interfaces. With a capacity of up to 5 gpm (20 L/min) and maximum leakage of only 10 in\u00b3/min at specified conditions, this valve is optimized for high-frequency switching applications up to 15,000 cycles per hour. The product also offers robust environmental protection options through weatherized coils and kits suitable for harsh conditions.
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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