SUN HYDRAULICS
COJAXAV
$288.81 USD
- SUN HYDRAULICS
- Material:COJAXAV
- Model:COJA-XAV
- 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 COJAXAV (COJAXAV) is a high-performance spring-biased closed, pilot-to-close check cartridge valve with a nominal pilot ratio of 1.8:1. This valve facilitates flow from port 1 to port 2 while blocking reverse flow under any condition, ensuring operational reliability and safety. The pressure at the pilot port needs to be 1.8 times less than the pressure at port 1 to close the valve effectively, which means that a pressure of 1000 psi at the pilot port will counteract a pressure of 1800 psi at port 1. This specific design feature makes the COJAXAV particularly suitable for use in regeneration circuits where such control and balance are crucial. The COJAXAV model incorporates Sun Hydraulics\u2019 floating style construction which reduces the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations, enhancing the valve's durability and performance consistency. It is designed to handle maximum operating pressures up to 5000 psi and has a high capacity flow rate of up to 160 gpm. Furthermore, this model has been updated with positive seals on its pilot pistons, aligning it mechanically with other models in the series but offering more availability and cost efficiency. Key specifications include a maximum valve leakage of merely one drop per minute at 110 SUS viscosity, making it highly efficient in maintaining system integrity and minimizing fluid loss. Additionally, it features robust construction with corrosion-resistant options available for harsh environments, ensuring long-term reliability across various applications. The valve's hex size is 1-5/8 inches for installation ease, and it requires an installation torque between 350 - 375 lbf ft. Weighing only about 2.60 lbs, the COJAXAV combines lightweight design with robust performance capabilities suitable for demanding hydraulic systems.
The Sun Hydraulics COJAXAV (COJAXAV) is a high-performance spring-biased closed, pilot-to-close check cartridge valve with a nominal pilot ratio of 1.8:1. This valve facilitates flow from port 1 to port 2 while blocking reverse flow under any condition, ensuring operational reliability and safety. The pressure at the pilot port needs to be 1.8 times less than the pressure at port 1 to close the valve effectively, which means that a pressure of 1000 psi at the pilot port will counteract a pressure of 1800 psi at port 1. This specific design feature makes the COJAXAV particularly suitable for use in regeneration circuits where such control and balance are crucial. The COJAXAV model incorporates Sun Hydraulics\u2019 floating style construction which reduces the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations, enhancing the valve's durability and performance consistency. It is designed to handle maximum operating pressures up to 5000 psi and has a high capacity flow rate of up to 160 gpm. Furthermore, this model has been updated with positive seals on its pilot pistons, aligning it mechanically with other models in the series but offering more availability and cost efficiency. Key specifications include a maximum valve leakage of merely one drop per minute at 110 SUS viscosity, making it highly efficient in maintaining system integrity and minimizing fluid loss. Additionally, it features robust construction with corrosion-resistant options available for harsh environments, ensuring long-term reliability across various applications. The valve's hex size is 1-5/8 inches for installation ease, and it requires an installation torque between 350 - 375 lbf ft. Weighing only about 2.60 lbs, the COJAXAV combines lightweight design with robust performance capabilities suitable for demanding hydraulic systems.
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-19A |
| Series | 4 |
| Capacity | 160 gpm610 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 5/8 in.41,3 mm |
| Valve Installation Torque | 350 - 375 lbf ft474 - 508 Nm |
| Model Weight | 2.60 lb1,20 kg |
| Seal kit - Cartridge | Viton: 990-019-006 |
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