SUN HYDRAULICS
COHBXBV
$167.48 USD
- SUN HYDRAULICS
- Material:COHBXBV
- Model:COHB-XBV
- 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 COHBXBV (COHBXBV) is a spring-biased closed, pilot-to-close check cartridge valve, featuring a 1.8:1 pilot ratio. This valve facilitates flow from port 1 to port 2 while effectively blocking reverse flow under any condition, ensuring reliable operation in hydraulic systems. It is engineered to close against pressures up to 1800 psi (125 bar) at port 1 when the pilot pressure is at 1000 psi (70 bar). The design includes a Sun floating style construction which minimizes internal parts binding and potential malfunctions due to excessive installation torque or variations in cavity/cartridge machining. The COHBXBV has a maximum operating pressure of 5000 psi (350 bar) and can handle up to 80 gpm (320 L/min), making it suitable for high-capacity applications. It also features minimal valve leakage, with a maximum rate of only one drop per minute at 110 SUS (24 cSt). For installation, the valve requires a hex size of 1-1/4 inches (31.8 mm) and an installation torque between 150 - 160 lbf\u00b7ft (203 - 217 Nm). The seal kit for this cartridge uses Viton components, ensuring durability and resistance against various fluids. This valve is often utilized in regeneration circuits where precise control of fluid handling is necessary. Its robust design ensures that equal pressures at all ports will keep the valve closed, providing an additional layer of safety and efficiency in complex hydraulic systems. Additionally, the updated sealing on the pilot pistons ensures reliability across both COA and COB models now that they are mechanically identical.
The Sun Hydraulics COHBXBV (COHBXBV) is a spring-biased closed, pilot-to-close check cartridge valve, featuring a 1.8:1 pilot ratio. This valve facilitates flow from port 1 to port 2 while effectively blocking reverse flow under any condition, ensuring reliable operation in hydraulic systems. It is engineered to close against pressures up to 1800 psi (125 bar) at port 1 when the pilot pressure is at 1000 psi (70 bar). The design includes a Sun floating style construction which minimizes internal parts binding and potential malfunctions due to excessive installation torque or variations in cavity/cartridge machining. The COHBXBV has a maximum operating pressure of 5000 psi (350 bar) and can handle up to 80 gpm (320 L/min), making it suitable for high-capacity applications. It also features minimal valve leakage, with a maximum rate of only one drop per minute at 110 SUS (24 cSt). For installation, the valve requires a hex size of 1-1/4 inches (31.8 mm) and an installation torque between 150 - 160 lbf\u00b7ft (203 - 217 Nm). The seal kit for this cartridge uses Viton components, ensuring durability and resistance against various fluids. This valve is often utilized in regeneration circuits where precise control of fluid handling is necessary. Its robust design ensures that equal pressures at all ports will keep the valve closed, providing an additional layer of safety and efficiency in complex hydraulic systems. Additionally, the updated sealing on the pilot pistons ensures reliability across both COA and COB models now that they are mechanically identical.
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.
- 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 |
| Seal kit - Cartridge | Viton: 990-017-006 |
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