SUN HYDRAULICS
COFAXAE
$240.46 USD
- SUN HYDRAULICS
- Material:COFAXAE
- Model:COFA-XAE
- 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 COFAXAE (COFAXAE) is a precision-engineered pilot-to-close check cartridge valve, designed to ensure reliable operation in hydraulic systems. This valve features a spring-biased closed configuration, which allows fluid flow from port 1 to port 2 while blocking reverse flow under any condition. It operates with a nominal pilot ratio of 1.8:1, meaning that a pressure of 1000 psi at the pilot port can close the valve against a pressure of 1800 psi at port 1. This feature is crucial for applications requiring precise control over flow and pressure. The COFAXAE valve is commonly utilized in regeneration circuits, where its ability to prevent reverse flow enhances system efficiency and safety. The maximum operating pressure for this model is rated at 5000 psi, and it has a flow capacity of up to 40 gpm (160 L/min). Additionally, the valve's design incorporates Sun Hydraulics\u2019 floating style construction which minimizes the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations. For environments involving corrosive substances or extreme conditions, corrosion-resistant versions of this cartridge are available, indicated by specific model code suffixes. Furthermore, when used with EPDM seals, this model is compatible with phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it can damage the seals. Each COFAXAE unit has a hex size of 1-1/8 inches for installation and requires an installation torque between 45 - 50 lbf.ft. Weighing just about 0.50 lb (0.25 kg), it is compact yet robust enough to handle demanding industrial applications without significant leakage\u2014maximum valve leakage stands at approximately one drop per minute at standard conditions.
The Sun Hydraulics COFAXAE (COFAXAE) is a precision-engineered pilot-to-close check cartridge valve, designed to ensure reliable operation in hydraulic systems. This valve features a spring-biased closed configuration, which allows fluid flow from port 1 to port 2 while blocking reverse flow under any condition. It operates with a nominal pilot ratio of 1.8:1, meaning that a pressure of 1000 psi at the pilot port can close the valve against a pressure of 1800 psi at port 1. This feature is crucial for applications requiring precise control over flow and pressure. The COFAXAE valve is commonly utilized in regeneration circuits, where its ability to prevent reverse flow enhances system efficiency and safety. The maximum operating pressure for this model is rated at 5000 psi, and it has a flow capacity of up to 40 gpm (160 L/min). Additionally, the valve's design incorporates Sun Hydraulics\u2019 floating style construction which minimizes the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations. For environments involving corrosive substances or extreme conditions, corrosion-resistant versions of this cartridge are available, indicated by specific model code suffixes. Furthermore, when used with EPDM seals, this model is compatible with phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it can damage the seals. Each COFAXAE unit has a hex size of 1-1/8 inches for installation and requires an installation torque between 45 - 50 lbf.ft. Weighing just about 0.50 lb (0.25 kg), it is compact yet robust enough to handle demanding industrial applications without significant leakage\u2014maximum valve leakage stands at approximately one drop per minute at standard 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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