Overpressure protection is one of the most important safety features in CNG dispensers. They include pressure relief valves, automatic shut-off mechanisms, and high-pressure sensors that continuously monitor the fueling process.
If the dispenser detects a pressure surge beyond safe limits, it immediately cuts off gas flow and seals the system. This prevents accidents such as hose separation, nozzle damage, or tank overfilling. Visual and audio alarms alert users and station staff to the issue.
These multiple layers of protection allow CNG dispensers to operate safely even in high-traffic environments, making them suitable for public stations and commercial fleet depots.