SUN HYDRAULICS
COHAEGN
$142.77 USD
- SUN HYDRAULICS
- Material:COHAEGN
- Model:COHA-EGN
- 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 COHAEGN (COHAEGN) is a sophisticated spring-biased closed, pilot-to-close check cartridge valve designed for high-performance hydraulic systems. This valve facilitates flow from port 1 to port 2 while effectively blocking any reverse flow, ensuring operational integrity and safety in critical applications. It features a nominal pilot ratio of 1.8:1, which means that a pressure of 1000 psi at the pilot port will close the valve against a pressure of 1800 psi at port 1. This specific design characteristic makes it particularly suitable for use in regeneration circuits where precise control of flow and pressure is necessary. The COHAEGN valve incorporates Sun Hydraulics' unique floating style construction which minimizes internal parts binding that could occur due to excessive installation torque or variations in cavity/cartridge machining, enhancing the valve\u2019s reliability and lifespan. It also boasts an impressive maximum operating pressure capacity of 5000 psi and can handle up to 80 gpm (320 L/min), making it robust enough for demanding applications. The model has been updated to include a positive seal on the pilot pistons, aligning it with the COB models in terms of performance and mechanical identity. Additionally, this model is designed to be corrosion-resistant, suitable for environments where corrosion could pose a significant risk to standard valves. With its minimal leakage rate at high viscosity (1 drop/min at 110 SUS), and specific installation requirements (torque between 150-160 lbf ft), the COHAEGN ensures efficient and reliable operation in various hydraulic setups without the risk of performance degradation due to external or internal factors.
The Sun Hydraulics COHAEGN (COHAEGN) is a sophisticated spring-biased closed, pilot-to-close check cartridge valve designed for high-performance hydraulic systems. This valve facilitates flow from port 1 to port 2 while effectively blocking any reverse flow, ensuring operational integrity and safety in critical applications. It features a nominal pilot ratio of 1.8:1, which means that a pressure of 1000 psi at the pilot port will close the valve against a pressure of 1800 psi at port 1. This specific design characteristic makes it particularly suitable for use in regeneration circuits where precise control of flow and pressure is necessary. The COHAEGN valve incorporates Sun Hydraulics' unique floating style construction which minimizes internal parts binding that could occur due to excessive installation torque or variations in cavity/cartridge machining, enhancing the valve\u2019s reliability and lifespan. It also boasts an impressive maximum operating pressure capacity of 5000 psi and can handle up to 80 gpm (320 L/min), making it robust enough for demanding applications. The model has been updated to include a positive seal on the pilot pistons, aligning it with the COB models in terms of performance and mechanical identity. Additionally, this model is designed to be corrosion-resistant, suitable for environments where corrosion could pose a significant risk to standard valves. With its minimal leakage rate at high viscosity (1 drop/min at 110 SUS), and specific installation requirements (torque between 150-160 lbf ft), the COHAEGN ensures efficient and reliable operation in various hydraulic setups without the risk of performance degradation due to external or internal factors.
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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