SUN HYDRAULICS
DNCAMJN728
$140.29 USD
- SUN HYDRAULICS
- Material:DNCAMJN728
- Model:DNCA-MJN@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 DNCAMJN728 (DNCAMJN728) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting and balanced spool directional control. This valve is noted for its closed transition between positions, which significantly reduces oil loss during shifting\u2014a critical feature in pilot control circuits. The DNCAMJN728 is optimized for use with port 3 as the inlet and port 1 as the tank; while reverse flow is possible, it is not recommended due to potential performance inconsistencies. It features a solenoid tube assembly rated for fatigue at 5000 psi (350 bar), ensuring durability under high-pressure conditions. This valve operates without needing minimum hydraulic pressure and uses EPDM seals suitable for phosphate ester fluid systems, although these seals are incompatible with petroleum-based fluids. The wet armature design allows the working fluid to surround the armature, which can be beneficial or detrimental depending on fluid type and coil energization duration. Coil options offer various terminations and voltage configurations, some with surge protection, providing versatility in application settings. The high-efficiency solenoid design ensures reliable valve shifting with substantial spool actuating force per watt expended. Coils are interchangeable within Sun Series 1 products and can be oriented in either direction on the tube. The DNCAMJN728 incorporates Sun\u2019s floating style construction to reduce internal binding risks due to installation torque or machining variations. Additional features include a capacity of 8 gpm (30 L/min), a maximum operating pressure of 5000 psi (350 bar), a typical response time of 50 ms, and a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The manual override requires a force of approximately 5 lbs/1000 psi (33 N/100 bar) at Port 1 with a stroke length of .10 inches (2.5 mm).
The Sun Hydraulics DNCAMJN728 (DNCAMJN728) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting and balanced spool directional control. This valve is noted for its closed transition between positions, which significantly reduces oil loss during shifting\u2014a critical feature in pilot control circuits. The DNCAMJN728 is optimized for use with port 3 as the inlet and port 1 as the tank; while reverse flow is possible, it is not recommended due to potential performance inconsistencies. It features a solenoid tube assembly rated for fatigue at 5000 psi (350 bar), ensuring durability under high-pressure conditions. This valve operates without needing minimum hydraulic pressure and uses EPDM seals suitable for phosphate ester fluid systems, although these seals are incompatible with petroleum-based fluids. The wet armature design allows the working fluid to surround the armature, which can be beneficial or detrimental depending on fluid type and coil energization duration. Coil options offer various terminations and voltage configurations, some with surge protection, providing versatility in application settings. The high-efficiency solenoid design ensures reliable valve shifting with substantial spool actuating force per watt expended. Coils are interchangeable within Sun Series 1 products and can be oriented in either direction on the tube. The DNCAMJN728 incorporates Sun\u2019s floating style construction to reduce internal binding risks due to installation torque or machining variations. Additional features include a capacity of 8 gpm (30 L/min), a maximum operating pressure of 5000 psi (350 bar), a typical response time of 50 ms, and a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The manual override requires a force of approximately 5 lbs/1000 psi (33 N/100 bar) at Port 1 with a stroke length of .10 inches (2.5 mm).
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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