SUN HYDRAULICS
DNDCXTN636
$221.20 USD
- SUN HYDRAULICS
- Material:DNDCXTN636
- Model:DNDC-XTN@636
- 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 DNDCXTN636 (DNDCXTN636) is a direct acting, solenoid-operated, 4-way, 3-position spool valve that is spring-centered to the neutral position. This valve is designed for applications requiring precise flow direction control, with the ability to switch flow paths by energizing either coil A or coil B. When coil A is energized, the flow path directs from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B redirects the flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is fatigue rated for service up to 5000 psi (350 bar), ensuring durability under high-pressure conditions. This valve does not require a minimum hydraulic pressure for operation due to its direct actuation design, making it versatile for various hydraulic systems. It features a wet armature design where the working fluid surrounds the armature, aiding in heat dissipation generated by the coil but necessitating consideration of fluid breakdown over time in certain mixtures like water-glycol. The DNDCXTN636 utilizes EPDM seals suitable for phosphate ester fluid systems but incompatible with petroleum-based fluids. With a high-efficiency solenoid design yielding robust spool actuating force per watt expended, this valve ensures reliable shifting operations. It offers multiple coil termination and voltage options with IP69K-rated connectors available for enhanced environmental protection. Additionally, Sun Hydraulics' floating style construction minimizes internal binding risks due to installation torque or machining variations. Key specifications include a capacity of 5 gpm (20 L/min), response time of approximately 50 ms, and a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The valve's switching frequency reaches up to 15,000 cycles per hour, making it suitable for demanding applications requiring frequent actuation.
The Sun Hydraulics DNDCXTN636 (DNDCXTN636) is a direct acting, solenoid-operated, 4-way, 3-position spool valve that is spring-centered to the neutral position. This valve is designed for applications requiring precise flow direction control, with the ability to switch flow paths by energizing either coil A or coil B. When coil A is energized, the flow path directs from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B redirects the flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is fatigue rated for service up to 5000 psi (350 bar), ensuring durability under high-pressure conditions. This valve does not require a minimum hydraulic pressure for operation due to its direct actuation design, making it versatile for various hydraulic systems. It features a wet armature design where the working fluid surrounds the armature, aiding in heat dissipation generated by the coil but necessitating consideration of fluid breakdown over time in certain mixtures like water-glycol. The DNDCXTN636 utilizes EPDM seals suitable for phosphate ester fluid systems but incompatible with petroleum-based fluids. With a high-efficiency solenoid design yielding robust spool actuating force per watt expended, this valve ensures reliable shifting operations. It offers multiple coil termination and voltage options with IP69K-rated connectors available for enhanced environmental protection. Additionally, Sun Hydraulics' floating style construction minimizes internal binding risks due to installation torque or machining variations. Key specifications include a capacity of 5 gpm (20 L/min), response time of approximately 50 ms, and a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The valve's switching frequency reaches up to 15,000 cycles per hour, making it suitable for demanding applications requiring frequent actuation.
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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