SUN HYDRAULICS
CNJEXBN
$280.46 USD
- SUN HYDRAULICS
- Material:CNJEXBN
- Model:CNJE-XBN
- 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 CNJEXBN (CNJEXBN) is a high-performance pilot-to-close check cartridge valve designed for robust hydraulic applications. This valve uniquely combines a spring-biased close feature with a bypass orifice, which can be specified by the customer within an allowable range of 0.4 to 9 mm. It is engineered to allow fluid flow from port 1 to port 2 while restricting flow in the reverse direction, making it an ideal choice for circuits requiring one-way flow with pilot-operated release capability. The CNJEXBN valve is notable for its hardened steel seats that enhance durability and contamination tolerance, supporting prolonged operational life even under demanding conditions. The nominal pilot ratio of 1.8:1 means that it requires a higher pressure at port 1 compared to the pilot pressure at port 3 to remain closed, ensuring reliable operation under varying pressure conditions. This feature is critical in applications where control over fluid flow direction and prevention of backflow are necessary. Additionally, the valve\u2019s design incorporates Sun\u2019s floating style construction which minimizes internal parts binding\u2014a common issue in valves due to excessive installation torque or cavity/cartridge machining variations. This construction detail ensures smoother operation and increased reliability. Technical specifications include a T19A cavity, Series 4 compatibility, and a maximum capacity of 160 gpm (610 L/min). The valve also requires specific installation torque between 350 - 375 lbf.ft (474 - 508 Nm) and utilizes Viton seals for enhanced performance under various environmental conditions. Overall, the Sun Hydraulics CNJEXBN check cartridge offers a versatile solution for hydraulic systems requiring dependable non-return functionality combined with the flexibility of pilot-operated flow control.
The Sun Hydraulics CNJEXBN (CNJEXBN) is a high-performance pilot-to-close check cartridge valve designed for robust hydraulic applications. This valve uniquely combines a spring-biased close feature with a bypass orifice, which can be specified by the customer within an allowable range of 0.4 to 9 mm. It is engineered to allow fluid flow from port 1 to port 2 while restricting flow in the reverse direction, making it an ideal choice for circuits requiring one-way flow with pilot-operated release capability. The CNJEXBN valve is notable for its hardened steel seats that enhance durability and contamination tolerance, supporting prolonged operational life even under demanding conditions. The nominal pilot ratio of 1.8:1 means that it requires a higher pressure at port 1 compared to the pilot pressure at port 3 to remain closed, ensuring reliable operation under varying pressure conditions. This feature is critical in applications where control over fluid flow direction and prevention of backflow are necessary. Additionally, the valve\u2019s design incorporates Sun\u2019s floating style construction which minimizes internal parts binding\u2014a common issue in valves due to excessive installation torque or cavity/cartridge machining variations. This construction detail ensures smoother operation and increased reliability. Technical specifications include a T19A cavity, Series 4 compatibility, and a maximum capacity of 160 gpm (610 L/min). The valve also requires specific installation torque between 350 - 375 lbf.ft (474 - 508 Nm) and utilizes Viton seals for enhanced performance under various environmental conditions. Overall, the Sun Hydraulics CNJEXBN check cartridge offers a versatile solution for hydraulic systems requiring dependable non-return functionality combined with the flexibility of pilot-operated flow control.
This valve is a spring biased closed, pilot-to-close check cartridge with a bypass orifice. It incorporates a steel seat and is non-vented. The valve allows flow from port 1 to port 2 and restricts flow from port 2 to port 1. Pressure at the pilot (port 3) opposes pressure at port 1 at a ratio of 1.8:1. Pressure at port 2 directly opposes the pilot pressure. Note: The bypass orifice diameter is specified by the customer. See Technical Data below for the allowable orifice range.
- Features hardened steel seats for excellent wear characteristics and contamination tolerance.
- Nominal pilot ratio is 1.8:1. This means that a pressure of 1000 psi (70 bar) at the pilot port will close a valve against a pressure of 1800 psi (125 bar) at port 1. Any decay or loss of pilot pressure could allow the valve to open, even if it is a momentary decay or loss.
- Pressure at the port 2 area directly opposes pilot pressure.
- With equal pressures at all ports the valve is closed.
- 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-19A |
| Series | 4 |
| Capacity | 160 gpm610 L/min. |
| Orifice Range | .016 - .354 in.0,4 - 9 mm |
| Valve Hex Size | 1 5/8 in.41,3 mm |
| Valve Installation Torque | 350 - 375 lbf ft474 - 508 Nm |
| Seal kit - Cartridge | Viton: 990-019-006 |
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