A filling valve is a vital component in the CNG (Compressed Natural Gas) fueling system, allowing the transfer of compressed natural gas from a refueling station into the vehicles fuel tank. Located on the CNG tank, the filling valve controls the flow of gas during refueling. It ensures a secure and safe connection between the vehicles fuel tank and the fueling stations hose, preventing leaks or accidents. The valve is equipped with a special mechanism that only allows gas to flow into the tank when the nozzle is properly attached. Additionally, the filling valve is designed to withstand the high pressures at which CNG is stored, ensuring that refueling is both efficient and safe. This component is crucial for maintaining the integrity of the CNG fuel system, preventing overfilling, and ensuring that the fuel tank is filled to the correct capacity. In places like Delhi, where CNG is widely used as an eco-friendly fuel alternative, a reliable filling valve is essential for safe and effective refueling.