SUN HYDRAULICS
COJAXEN
$278.88 USD
- SUN HYDRAULICS
- Material:COJAXEN
- Model:COJA-XEN
- 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 COJAXEN (COJAXEN) is a meticulously engineered check valve designed for specific hydraulic applications. This spring-biased closed, pilot-to-close check cartridge features a 1.8:1 pilot ratio, allowing flow from port 1 to port 2 while effectively blocking reverse flow. The valve operates such that pressure at the pilot port counteracts the pressure at port 1 with its nominal pilot ratio, ensuring reliable closure against higher pressures at port 1. This design makes the COJAXEN particularly suitable for use in regeneration circuits where control and prevention of reverse flow are critical. Constructed to handle a maximum operating pressure of up to 5000 psi (350 bar) and a flow capacity of up to 160 gpm (610 L/min), this valve stands out for its robust performance in demanding conditions. The COJAXEN incorporates Sun Hydraulics' floating style construction which minimizes the risk of internal parts binding\u2014a common issue due to excessive installation torque or discrepancies in cavity/cartridge machining. With its compact model weight of approximately 2.60 lbs (1.20 kg), and precise installation specifications including a valve hex size of 1 5/8 in (41.3 mm) and an installation torque range of 350 \u2013 375 lbf\u00b7ft (474 \u2013 508 Nm), the COJAXEN ensures ease of integration into various hydraulic systems without compromising on reliability or performance. Additional features like corrosion resistance and positive sealing on the pilot pistons highlight its advanced design tailored for longevity and consistent operation in corrosive environments or under variable pressure conditions.
The Sun Hydraulics COJAXEN (COJAXEN) is a meticulously engineered check valve designed for specific hydraulic applications. This spring-biased closed, pilot-to-close check cartridge features a 1.8:1 pilot ratio, allowing flow from port 1 to port 2 while effectively blocking reverse flow. The valve operates such that pressure at the pilot port counteracts the pressure at port 1 with its nominal pilot ratio, ensuring reliable closure against higher pressures at port 1. This design makes the COJAXEN particularly suitable for use in regeneration circuits where control and prevention of reverse flow are critical. Constructed to handle a maximum operating pressure of up to 5000 psi (350 bar) and a flow capacity of up to 160 gpm (610 L/min), this valve stands out for its robust performance in demanding conditions. The COJAXEN incorporates Sun Hydraulics' floating style construction which minimizes the risk of internal parts binding\u2014a common issue due to excessive installation torque or discrepancies in cavity/cartridge machining. With its compact model weight of approximately 2.60 lbs (1.20 kg), and precise installation specifications including a valve hex size of 1 5/8 in (41.3 mm) and an installation torque range of 350 \u2013 375 lbf\u00b7ft (474 \u2013 508 Nm), the COJAXEN ensures ease of integration into various hydraulic systems without compromising on reliability or performance. Additional features like corrosion resistance and positive sealing on the pilot pistons highlight its advanced design tailored for longevity and consistent operation in corrosive environments or under variable pressure conditions.
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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