SUN HYDRAULICS
COHCXFN
$167.38 USD
- SUN HYDRAULICS
- Material:COHCXFN
- Model:COHC-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 COHCXFN (COHCXFN) is a sophisticated pilot-to-close check cartridge valve, designed for hydraulic applications requiring controlled flow and prevention of reverse flow. This valve operates by allowing fluid to pass from port 1 to port 2, while blocking any backflow from port 2 to port 1 under all conditions. The nominal pilot ratio of 1.8:1 indicates that a higher pressure at the pilot port effectively closes the valve against even higher pressures at port 1, ensuring reliable operation in dynamic pressure environments. Constructed with Sun's floating style design, the COHCXFN minimizes internal part binding and potential malfunctions caused by excessive installation torque or cavity/cartridge machining variations, enhancing durability and performance consistency. It fits within a T17A cavity and is part of Sun Hydraulics' Series 3 lineup. The valve supports a maximum flow capacity of 80 gpm (320 L/min) and can withstand operating pressures up to 5000 psi (350 bar). Its precise engineering ensures maximum leakage does not exceed one drop per minute, demonstrating its efficiency in maintaining system integrity. Additionally, the COHCXFN has an installation torque range between 150 - 160 lbf\u00b7ft (203 - 217 Nm) and weighs approximately 1.80 lbs (0.80 kg), making it robust yet manageable for system integration. This model uses Viton seals for enhanced temperature and chemical resistance, ensuring long-term reliability in various hydraulic setups. Ideal for applications where fluid flow control and non-return functionalities are critical, the COHCXFN provides an effective solution in hydraulic circuits demanding high precision and reliability.
The Sun Hydraulics COHCXFN (COHCXFN) is a sophisticated pilot-to-close check cartridge valve, designed for hydraulic applications requiring controlled flow and prevention of reverse flow. This valve operates by allowing fluid to pass from port 1 to port 2, while blocking any backflow from port 2 to port 1 under all conditions. The nominal pilot ratio of 1.8:1 indicates that a higher pressure at the pilot port effectively closes the valve against even higher pressures at port 1, ensuring reliable operation in dynamic pressure environments. Constructed with Sun's floating style design, the COHCXFN minimizes internal part binding and potential malfunctions caused by excessive installation torque or cavity/cartridge machining variations, enhancing durability and performance consistency. It fits within a T17A cavity and is part of Sun Hydraulics' Series 3 lineup. The valve supports a maximum flow capacity of 80 gpm (320 L/min) and can withstand operating pressures up to 5000 psi (350 bar). Its precise engineering ensures maximum leakage does not exceed one drop per minute, demonstrating its efficiency in maintaining system integrity. Additionally, the COHCXFN has an installation torque range between 150 - 160 lbf\u00b7ft (203 - 217 Nm) and weighs approximately 1.80 lbs (0.80 kg), making it robust yet manageable for system integration. This model uses Viton seals for enhanced temperature and chemical resistance, ensuring long-term reliability in various hydraulic setups. Ideal for applications where fluid flow control and non-return functionalities are critical, the COHCXFN provides an effective solution in hydraulic circuits demanding high precision and reliability.
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 external pilot port opposes pressure at port 1 at a ratio of 1.8:1. Port 3 is blocked.
- 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.
- 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-17A |
| Series | 3 |
| Capacity | 80 gpm320 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 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 Nm |
| Model Weight | 1.80 lb0,80 kg |
| Seal kit - Cartridge | Viton: 990-017-006 |
Show FAQ