SUN HYDRAULICS
COFAXJV
$79.32 USD
- SUN HYDRAULICS
- Material:COFAXJV
- Model:COFA-XJV
- 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 COFAXJV (COFAXJV) is a highly specialized hydraulic component designed for efficient operation in regeneration circuits. This spring-biased closed, pilot-to-close check cartridge features a nominal pilot ratio of 1.8:1, allowing it to manage pressures effectively within hydraulic systems. The valve facilitates flow from port 1 to port 2 while blocking reverse flow entirely, ensuring no backflow occurs under any conditions. With its ability to handle a maximum operating pressure of 5000 psi (350 bar) and a capacity up to 40 gpm (160 L/min), the COFAXJV is engineered to perform reliably in demanding settings. The valve's design incorporates Sun Hydraulics' floating style construction which minimizes risks associated with internal parts binding\u2014this can be caused by excessive installation torque or discrepancies in cavity/cartridge machining. Additionally, the COFAXJV valve has been updated to include positive seals on the pilot pistons, aligning its mechanical properties with those of newer models in the same series. This enhancement ensures better sealing and consistent performance across various applications. The cartridge is also available with EPDM seals specifically for use with phosphate ester fluids; however, these are sensitive to petroleum-based substances which could compromise the integrity of the seals. For installation, the valve requires a torque between 45 - 50 lbf ft (61 - 68 Nm) and has a specified hex size of 1 1/8 inches (28.6 mm). Weighing just .50 lb (0.25 kg), it is compact yet robust enough to support large scale hydraulic functions without significant energy loss\u2014as indicated by its maximum leakage rate of only one drop per minute at 110 SUS (24 cSt). This makes the COFAXJV an essential component for systems requiring precise fluid control under high-pressure conditions.
The Sun Hydraulics COFAXJV (COFAXJV) is a highly specialized hydraulic component designed for efficient operation in regeneration circuits. This spring-biased closed, pilot-to-close check cartridge features a nominal pilot ratio of 1.8:1, allowing it to manage pressures effectively within hydraulic systems. The valve facilitates flow from port 1 to port 2 while blocking reverse flow entirely, ensuring no backflow occurs under any conditions. With its ability to handle a maximum operating pressure of 5000 psi (350 bar) and a capacity up to 40 gpm (160 L/min), the COFAXJV is engineered to perform reliably in demanding settings. The valve's design incorporates Sun Hydraulics' floating style construction which minimizes risks associated with internal parts binding\u2014this can be caused by excessive installation torque or discrepancies in cavity/cartridge machining. Additionally, the COFAXJV valve has been updated to include positive seals on the pilot pistons, aligning its mechanical properties with those of newer models in the same series. This enhancement ensures better sealing and consistent performance across various applications. The cartridge is also available with EPDM seals specifically for use with phosphate ester fluids; however, these are sensitive to petroleum-based substances which could compromise the integrity of the seals. For installation, the valve requires a torque between 45 - 50 lbf ft (61 - 68 Nm) and has a specified hex size of 1 1/8 inches (28.6 mm). Weighing just .50 lb (0.25 kg), it is compact yet robust enough to support large scale hydraulic functions without significant energy loss\u2014as indicated by its maximum leakage rate of only one drop per minute at 110 SUS (24 cSt). This makes the COFAXJV an essential component for systems requiring precise fluid control under high-pressure conditions.
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.
- 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.
- 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-2A |
| Series | 2 |
| Capacity | 40 gpm160 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 1/8 in.28,6 mm |
| Valve Installation Torque | 45 - 50 lbf ft61 - 68 Nm |
| Model Weight | .50 lb0,25 kg |
| Seal kit - Cartridge | Viton: 990-202-006 |
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