SUN HYDRAULICS
COJBXFN
$303.00 USD
- SUN HYDRAULICS
- Material:COJBXFN
- Model:COJB-XFN
- 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 COJBXFN (COJBXFN) is a high-performance spring-biased closed, pilot-to-close check cartridge valve designed for advanced hydraulic system applications. This valve facilitates controlled flow from port 1 to port 2 while effectively blocking any reverse flow from port 2 to port 1, ensuring operational reliability and safety. The nominal pilot ratio of 1.8:1 indicates that a pressure of 1000 psi at the pilot port can close the valve against a pressure of 1800 psi at port 1, highlighting its efficiency in maintaining control under varying pressures. The COJBXFN model is particularly useful in regeneration circuits where precise control of fluid handling is essential. It incorporates Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining, enhancing the valve's durability and performance consistency. The maximum operating pressure capability of this model reaches up to 5000 psi, and it can handle flow capacities up to 160 gpm, making it suitable for high-capacity systems. This model also features minimal leakage rates (1 drop/min), ensuring efficient operation with very little fluid loss. Installation specifications include a valve hex size of 1-5/8 inches and an installation torque range between 350 - 375 lbf ft, which facilitates easy and secure installation in diverse hydraulic setups. Weighing at approximately 2.60 lb, the COJBXFN combines robust construction with reliable performance metrics suitable for demanding hydraulic applications.
The Sun Hydraulics COJBXFN (COJBXFN) is a high-performance spring-biased closed, pilot-to-close check cartridge valve designed for advanced hydraulic system applications. This valve facilitates controlled flow from port 1 to port 2 while effectively blocking any reverse flow from port 2 to port 1, ensuring operational reliability and safety. The nominal pilot ratio of 1.8:1 indicates that a pressure of 1000 psi at the pilot port can close the valve against a pressure of 1800 psi at port 1, highlighting its efficiency in maintaining control under varying pressures. The COJBXFN model is particularly useful in regeneration circuits where precise control of fluid handling is essential. It incorporates Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining, enhancing the valve's durability and performance consistency. The maximum operating pressure capability of this model reaches up to 5000 psi, and it can handle flow capacities up to 160 gpm, making it suitable for high-capacity systems. This model also features minimal leakage rates (1 drop/min), ensuring efficient operation with very little fluid loss. Installation specifications include a valve hex size of 1-5/8 inches and an installation torque range between 350 - 375 lbf ft, which facilitates easy and secure installation in diverse hydraulic setups. Weighing at approximately 2.60 lb, the COJBXFN combines robust construction with reliable performance metrics suitable for demanding hydraulic applications.
This valve is a spring biased closed, pilot-to-close check cartridge that has a 1.8:1 pilot ratio. The valve allows flow from port 1 to port 2 and blocks reverse flow. Pressure at the pilot port opposes pressure at port 1 at a ratio of 1.8:1. This valve is most often used in regeneration circuits.
- 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.
- Reverse flow through the valve from port 2 to port 1 is not possible under any condition.
- With equal pressures at all ports the valve is closed.
- In the begining the CO*A's did not have a positive seal on the pilot pistons and the CO*B's did. Now the CO*A's are positively sealed and the 2 valves are mechanically identical. CO*A's are more readily available and cost less.
- 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. |
| Pilot Ratio | 1.8:11.8:1 |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 1 drops/min.0,07 cc/min. |
| Valve Hex Size | 1 5/8 in.41,3 mm |
| Valve Installation Torque | 350 - 375 lbf ft474 - 508 Nm |
| Model Weight | 2.60 lb1,20 kg |
| Seal kit - Cartridge | Viton: 990-019-006 |
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