SUN HYDRAULICS
COFALCN
$77.34 USD
- SUN HYDRAULICS
- Material:COFALCN
- Model:COFA-LCN
- 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 COFALCN (COFALCN) is a highly specialized hydraulic valve designed for use in regeneration circuits, ensuring efficient operation by allowing flow from port 1 to port 2 while blocking reverse flow. This pilot-to-close check cartridge valve has a nominal pilot ratio of 1.8:1, meaning it can close against a higher pressure at port 1 when adequate pressure is applied at the pilot port. Specifically, a pressure of 1000 psi at the pilot port will effectively close the valve against a pressure of 1800 psi at port 1. The COFALCN incorporates Sun Hydraulics' floating style construction which minimizes internal parts binding that might result from excessive installation torque or cavity/cartridge machining variations, enhancing its reliability and performance consistency. The valve's design ensures it remains closed with equal pressures at all ports and prevents any reverse flow from port 2 to port 1 under all conditions. For applications involving phosphate ester fluids, cartridges configured with EPDM seals are available; however, these should not be exposed to petroleum-based fluids, greases, and lubricants as they can damage the seals. The corrosion-resistant versions of this cartridge are ideal for corrosive environments and can be identified by specific model code suffixes. With a maximum operating pressure capacity of up to 5000 psi and a flow capacity of up to 40 gpm, the COFALCN is robust enough for demanding applications. It also features precise installation specifications such as a valve hex size of 1-1/8 inches and an installation torque between 45 - 50 lbf ft, ensuring secure and correct fitting into systems. The model weighs approximately .50 lb, making it lightweight yet durable for various hydraulic system configurations.
The Sun Hydraulics COFALCN (COFALCN) is a highly specialized hydraulic valve designed for use in regeneration circuits, ensuring efficient operation by allowing flow from port 1 to port 2 while blocking reverse flow. This pilot-to-close check cartridge valve has a nominal pilot ratio of 1.8:1, meaning it can close against a higher pressure at port 1 when adequate pressure is applied at the pilot port. Specifically, a pressure of 1000 psi at the pilot port will effectively close the valve against a pressure of 1800 psi at port 1. The COFALCN incorporates Sun Hydraulics' floating style construction which minimizes internal parts binding that might result from excessive installation torque or cavity/cartridge machining variations, enhancing its reliability and performance consistency. The valve's design ensures it remains closed with equal pressures at all ports and prevents any reverse flow from port 2 to port 1 under all conditions. For applications involving phosphate ester fluids, cartridges configured with EPDM seals are available; however, these should not be exposed to petroleum-based fluids, greases, and lubricants as they can damage the seals. The corrosion-resistant versions of this cartridge are ideal for corrosive environments and can be identified by specific model code suffixes. With a maximum operating pressure capacity of up to 5000 psi and a flow capacity of up to 40 gpm, the COFALCN is robust enough for demanding applications. It also features precise installation specifications such as a valve hex size of 1-1/8 inches and an installation torque between 45 - 50 lbf ft, ensuring secure and correct fitting into systems. The model weighs approximately .50 lb, making it lightweight yet durable for various hydraulic system configurations.
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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