SUN HYDRAULICS
COFAXDE
$240.46 USD
- SUN HYDRAULICS
- Material:COFAXDE
- Model:COFA-XDE
- 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 COFAXDE (COFAXDE) is a sophisticated hydraulic valve designed for specific applications where control and reliability are paramount. This spring-biased, pilot-to-close check cartridge valve facilitates flow from port 1 to port 2 while blocking reverse flow, ensuring operational integrity in various hydraulic systems. It features a nominal pilot ratio of 1.8:1, meaning that at a pilot pressure of 1000 psi (70 bar), the valve can close against a pressure of 1800 psi (125 bar) at port 1. This characteristic is crucial in scenarios where control over reverse flow is necessary to maintain system stability and performance. The valve's design incorporates a positive seal on the pilot pistons, which enhances its reliability and consistency of operation. It is also equipped with EPDM seals suitable for use with phosphate ester fluids, highlighting its adaptability to different hydraulic fluids while cautioning against exposure to petroleum-based substances which could damage the seals. Constructed to resist corrosion, the COFAXDE valve supports maximum operating pressures up to 5000 psi (350 bar) and has a maximum capacity of 40 gpm (160 L/min). Its robust design includes Sun\u2019s floating style construction which minimizes internal parts binding\u2014a common issue caused by excessive installation torque or cavity/cartridge machining variations. This model's utility is further enhanced by its minimal leakage rate, specified at less than one drop per minute at 110 SUS (24 cSt), ensuring efficient operation even under high-pressure conditions. The valve's dimensions and installation specifications, including a hex size of 1 1/8 in. (28.6 mm) and an installation torque between 45 -50 lbf ft (61 \u201368 Nm), make it versatile for integration into various setups without requiring extensive modifications. Overall, the Sun Hydraulics COFAXDE valve stands out for its precise control in hydraulic systems, particularly effective in regeneration circuits where reliable performance under varying pressure conditions is critical.
The Sun Hydraulics COFAXDE (COFAXDE) is a sophisticated hydraulic valve designed for specific applications where control and reliability are paramount. This spring-biased, pilot-to-close check cartridge valve facilitates flow from port 1 to port 2 while blocking reverse flow, ensuring operational integrity in various hydraulic systems. It features a nominal pilot ratio of 1.8:1, meaning that at a pilot pressure of 1000 psi (70 bar), the valve can close against a pressure of 1800 psi (125 bar) at port 1. This characteristic is crucial in scenarios where control over reverse flow is necessary to maintain system stability and performance. The valve's design incorporates a positive seal on the pilot pistons, which enhances its reliability and consistency of operation. It is also equipped with EPDM seals suitable for use with phosphate ester fluids, highlighting its adaptability to different hydraulic fluids while cautioning against exposure to petroleum-based substances which could damage the seals. Constructed to resist corrosion, the COFAXDE valve supports maximum operating pressures up to 5000 psi (350 bar) and has a maximum capacity of 40 gpm (160 L/min). Its robust design includes Sun\u2019s floating style construction which minimizes internal parts binding\u2014a common issue caused by excessive installation torque or cavity/cartridge machining variations. This model's utility is further enhanced by its minimal leakage rate, specified at less than one drop per minute at 110 SUS (24 cSt), ensuring efficient operation even under high-pressure conditions. The valve's dimensions and installation specifications, including a hex size of 1 1/8 in. (28.6 mm) and an installation torque between 45 -50 lbf ft (61 \u201368 Nm), make it versatile for integration into various setups without requiring extensive modifications. Overall, the Sun Hydraulics COFAXDE valve stands out for its precise control in hydraulic systems, particularly effective in regeneration circuits where reliable performance under varying pressure conditions is critical.
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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