What must be installed on each fuel cylinder in a CNG system?

In a CNG system, having a manual or electronic cylinder service valve installed on each fuel cylinder is essential for safe operation. The service valve controls the flow of compressed natural gas to and from the cylinder, allowing operators to manage the gas supply effectively. This valve is crucial for both refueling and discharging gas, ensuring that the system can be shut off when necessary for maintenance or emergency situations.

The manual or electronic service valve also contributes to safety by enabling isolation of the cylinder in the event of a malfunction or leak. This control mechanism is vital in preventing accidents and maintaining the integrity of the CNG system. Furthermore, the ability to monitor the flow and pressure of gas through these valves enhances operational efficiency and safety compliance.

While other components, such as an automatic pressure release valve, CNG purification system, and digital display gauge, may be important for specific functionalities within a CNG system, they do not serve the critical role that the cylinder service valve does in controlling gas flow and ensuring safe operation of the cylinders.