SUN HYDRAULICS
COKAXFN
$501.86 USD
- SUN HYDRAULICS
- Material:COKAXFN
- Model:COKA-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 COKAXFN (COKAXFN) is a robust pilot-to-close check cartridge valve designed for high-efficiency hydraulic systems. This valve facilitates controlled flow from port 1 to port 2 while completely blocking any reverse flow from port 2 to port 1, ensuring operational security and system reliability. With a nominal pilot ratio of 1.8:1, the valve requires a pressure of 1000 psi at the pilot port to counteract up to 1800 psi at port 1, making it highly effective in maintaining control under varying pressure conditions. Constructed to fit into Sun's T19A cavity for lower capacity applications or the T19AU cavity for full capacity utilization, the COKAXFN can handle up to 240 gpm/900 L/min flow rate. It is engineered with a maximum operating pressure of 5000 psi and has an extremely low maximum valve leakage rate at high fluid viscosity, which underscores its efficiency and reliability in preventing fluid loss. This valve is uniquely designed with Sun\u2019s floating style construction which minimizes internal part misalignment and potential binding that could arise from excessive installation torque or variations in cavity/cartridge machining. This feature enhances the valve's durability and consistent performance over time. Additionally, it supports a corrosion-resistant configuration suitable for harsh environments, though specific models like those with AP or LH suffixes should be referred to for such applications. Overall, the Sun Hydraulics COKAXFN check cartridge valve stands out for its high capacity, reliability in preventing reverse flow under any condition, and adaptability to different installation environments while maintaining minimal leakage and operational stability.
The Sun Hydraulics COKAXFN (COKAXFN) is a robust pilot-to-close check cartridge valve designed for high-efficiency hydraulic systems. This valve facilitates controlled flow from port 1 to port 2 while completely blocking any reverse flow from port 2 to port 1, ensuring operational security and system reliability. With a nominal pilot ratio of 1.8:1, the valve requires a pressure of 1000 psi at the pilot port to counteract up to 1800 psi at port 1, making it highly effective in maintaining control under varying pressure conditions. Constructed to fit into Sun's T19A cavity for lower capacity applications or the T19AU cavity for full capacity utilization, the COKAXFN can handle up to 240 gpm/900 L/min flow rate. It is engineered with a maximum operating pressure of 5000 psi and has an extremely low maximum valve leakage rate at high fluid viscosity, which underscores its efficiency and reliability in preventing fluid loss. This valve is uniquely designed with Sun\u2019s floating style construction which minimizes internal part misalignment and potential binding that could arise from excessive installation torque or variations in cavity/cartridge machining. This feature enhances the valve's durability and consistent performance over time. Additionally, it supports a corrosion-resistant configuration suitable for harsh environments, though specific models like those with AP or LH suffixes should be referred to for such applications. Overall, the Sun Hydraulics COKAXFN check cartridge valve stands out for its high capacity, reliability in preventing reverse flow under any condition, and adaptability to different installation environments while maintaining minimal leakage and operational stability.
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.
- These valves will work in Sun's standard T-19A cavity at lower capacity. To realize the full stated capacity, the T-19AU cavity should be used.
- 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.
- Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP or /LH (see CONFIGURATION section). For further details, please see the Materials of Construction page under TECHNICAL RESOURCES.
- 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-19AU |
| Series | 4 |
| Capacity | 240 gpm900 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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