SUN HYDRAULICS
COFAXCE
$238.47 USD
- SUN HYDRAULICS
- Material:COFAXCE
- Model:COFA-XCE
- 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 COFAXCE (COFAXCE) is a highly efficient, spring-biased closed, pilot-to-close check cartridge valve designed for precise fluid control in hydraulic systems. This model features a nominal pilot ratio of 1.8:1, allowing it to close against higher pressures effectively; for instance, a pilot pressure of 1000 psi can close the valve against a pressure of 1800 psi at port 1. The valve facilitates flow from port 1 to port 2 while securely blocking any reverse flow from port 2 back to port 1 under all conditions. Constructed to operate with maximum reliability, the COFAXCE valve maintains closure with equal pressures at all ports and ensures minimal leakage, with maximum allowable leakage specified at less than one drop per minute. It is particularly suitable for use in regeneration circuits where such control precision is crucial. This model boasts a robust design with a capacity of up to 40 gpm (160 L/min) and can withstand operating pressures up to 5000 psi (350 bar). It incorporates Sun\u2019s floating style construction which minimizes potential internal binding due to variations in installation torque or cavity/cartridge machining differences. The COFAXCE valve comes in various configurations including options for EPDM seals specifically for use with phosphate ester fluids; however, these are sensitive to petroleum-based fluids and should not be exposed to them. For environments that pose corrosion risks, corrosion-resistant versions are available designated by the suffix AP or LH in the model code. Overall, Sun Hydraulics' COFAXCE offers reliable performance and versatile application options making it an essential component for advanced hydraulic systems requiring precise flow control and high-pressure operation.
The Sun Hydraulics COFAXCE (COFAXCE) is a highly efficient, spring-biased closed, pilot-to-close check cartridge valve designed for precise fluid control in hydraulic systems. This model features a nominal pilot ratio of 1.8:1, allowing it to close against higher pressures effectively; for instance, a pilot pressure of 1000 psi can close the valve against a pressure of 1800 psi at port 1. The valve facilitates flow from port 1 to port 2 while securely blocking any reverse flow from port 2 back to port 1 under all conditions. Constructed to operate with maximum reliability, the COFAXCE valve maintains closure with equal pressures at all ports and ensures minimal leakage, with maximum allowable leakage specified at less than one drop per minute. It is particularly suitable for use in regeneration circuits where such control precision is crucial. This model boasts a robust design with a capacity of up to 40 gpm (160 L/min) and can withstand operating pressures up to 5000 psi (350 bar). It incorporates Sun\u2019s floating style construction which minimizes potential internal binding due to variations in installation torque or cavity/cartridge machining differences. The COFAXCE valve comes in various configurations including options for EPDM seals specifically for use with phosphate ester fluids; however, these are sensitive to petroleum-based fluids and should not be exposed to them. For environments that pose corrosion risks, corrosion-resistant versions are available designated by the suffix AP or LH in the model code. Overall, Sun Hydraulics' COFAXCE offers reliable performance and versatile application options making it an essential component for advanced hydraulic systems requiring precise flow control and high-pressure operation.
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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