SUN HYDRAULICS
CODBLZN
- SUN HYDRAULICS
- Material:CODBLZN
- Model:CODB-LZN
- Summary:Cartridge
Due to extremely high demand, please call 888-905-7411 for availability
***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 CODBLZN (CODBLZN) is a high-performance, pilot-to-close check cartridge valve designed for hydraulic applications requiring controlled flow and prevent reverse flow. This valve facilitates flow from port 1 to port 2 while effectively blocking the opposite direction under any condition, ensuring operational reliability and safety. With a nominal pilot ratio of 1.8:1, the CODBLZN can close against higher pressures at port 1 when influenced by appropriate pilot pressures. For instance, a pressure of 1000 psi at the pilot port will allow the valve to counteract up to 1800 psi at port 1. The design incorporates a positive seal on the pilot pistons, enhancing its sealing capability which is critical in maintaining consistent performance and preventing leakage. This model features Sun\u2019s floating style construction which minimizes internal parts binding that could result from excessive installation torque or variations in cavity/cartridge machining. Such a design ensures smoother operation and extends the valve\u2019s service life. The CODBLZN has a maximum operating pressure capacity of 5000 psi and can handle flows up to 20 gpm. It is designed with a T11A cavity and conforms to Series 1 standards. The valve's maximum leakage is meticulously controlled, allowing only about one drop per minute at 110 SUS viscosity, which demonstrates its efficiency in maintaining system integrity. Additional technical specifications include a valve hex size of 7/8 inches for secure installation with an installation torque between 30 - 35 lbf.ft. Weighing just about .30 lb, this compact unit integrates seamlessly into various hydraulic circuits commonly used in regeneration applications where reliable non-return functionality is crucial.
The Sun Hydraulics CODBLZN (CODBLZN) is a high-performance, pilot-to-close check cartridge valve designed for hydraulic applications requiring controlled flow and prevent reverse flow. This valve facilitates flow from port 1 to port 2 while effectively blocking the opposite direction under any condition, ensuring operational reliability and safety. With a nominal pilot ratio of 1.8:1, the CODBLZN can close against higher pressures at port 1 when influenced by appropriate pilot pressures. For instance, a pressure of 1000 psi at the pilot port will allow the valve to counteract up to 1800 psi at port 1. The design incorporates a positive seal on the pilot pistons, enhancing its sealing capability which is critical in maintaining consistent performance and preventing leakage. This model features Sun\u2019s floating style construction which minimizes internal parts binding that could result from excessive installation torque or variations in cavity/cartridge machining. Such a design ensures smoother operation and extends the valve\u2019s service life. The CODBLZN has a maximum operating pressure capacity of 5000 psi and can handle flows up to 20 gpm. It is designed with a T11A cavity and conforms to Series 1 standards. The valve's maximum leakage is meticulously controlled, allowing only about one drop per minute at 110 SUS viscosity, which demonstrates its efficiency in maintaining system integrity. Additional technical specifications include a valve hex size of 7/8 inches for secure installation with an installation torque between 30 - 35 lbf.ft. Weighing just about .30 lb, this compact unit integrates seamlessly into various hydraulic circuits commonly used in regeneration applications where reliable non-return functionality is crucial.
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-11A |
| Series | 1 |
| Capacity | 20 gpm80 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 | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Model Weight | .30 lb0,15 kg |
| Seal kit - Cartridge | Viton: 990-011-006 |
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