SUN HYDRAULICS
COHAEEN
$140.78 USD
- SUN HYDRAULICS
- Material:COHAEEN
- Model:COHA-EEN
- 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 COHAEEN (COHAEEN) is a robust pilot-to-close check cartridge valve designed for high-performance hydraulic systems. Featuring a nominal pilot ratio of 1.8:1, this valve efficiently manages flow from port 1 to port 2 while reliably blocking reverse flow under any condition. The valve's operation is contingent on the pressure dynamics between the ports; a pressure of 1000 psi at the pilot port can close the valve against a pressure of 1800 psi at port 1. This characteristic makes it particularly effective in regeneration circuits where precise control of fluid flow is necessary. The COHAEEN incorporates Sun Hydraulics' floating style construction, which minimizes internal parts binding\u2014a common issue caused by excessive installation torque or cavity/cartridge machining variations. This design enhancement ensures long-term reliability and performance consistency in demanding applications. With a maximum operating pressure capability of up to 5000 psi and a capacity to handle up to 80 gpm, this valve is equipped to meet rigorous industrial requirements. It also features minimal leakage specifications, maintaining only one drop per minute at 110 SUS viscosity, thereby ensuring efficient system operations with minimal fluid loss. Designed for ease of installation, the COHAEEN has a specific hex size for the valve at 1-1/4 inches and requires an installation torque between 150 and 160 lbf ft. The model itself weighs approximately 1.80 lbs, making it both sturdy and manageable in size for various system configurations. Additionally, this model uses Viton seals (kit number: 990017006) to ensure optimal performance in diverse operating environments, further enhancing its utility and durability in hydraulic systems across various applications.
The Sun Hydraulics COHAEEN (COHAEEN) is a robust pilot-to-close check cartridge valve designed for high-performance hydraulic systems. Featuring a nominal pilot ratio of 1.8:1, this valve efficiently manages flow from port 1 to port 2 while reliably blocking reverse flow under any condition. The valve's operation is contingent on the pressure dynamics between the ports; a pressure of 1000 psi at the pilot port can close the valve against a pressure of 1800 psi at port 1. This characteristic makes it particularly effective in regeneration circuits where precise control of fluid flow is necessary. The COHAEEN incorporates Sun Hydraulics' floating style construction, which minimizes internal parts binding\u2014a common issue caused by excessive installation torque or cavity/cartridge machining variations. This design enhancement ensures long-term reliability and performance consistency in demanding applications. With a maximum operating pressure capability of up to 5000 psi and a capacity to handle up to 80 gpm, this valve is equipped to meet rigorous industrial requirements. It also features minimal leakage specifications, maintaining only one drop per minute at 110 SUS viscosity, thereby ensuring efficient system operations with minimal fluid loss. Designed for ease of installation, the COHAEEN has a specific hex size for the valve at 1-1/4 inches and requires an installation torque between 150 and 160 lbf ft. The model itself weighs approximately 1.80 lbs, making it both sturdy and manageable in size for various system configurations. Additionally, this model uses Viton seals (kit number: 990017006) to ensure optimal performance in diverse operating environments, further enhancing its utility and durability in hydraulic systems across various applications.
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.
- 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-17A |
| Series | 3 |
| Capacity | 80 gpm320 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 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 Nm |
| Model Weight | 1.80 lb0,80 kg |
| Seal kit - Cartridge | Viton: 990-017-006 |
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