A CNG Fitted Car Cylinder Hydrotest is a critical safety procedure designed to ensure the structural integrity and safety of the compressed natural gas (CNG) cylinder used in a vehicle. The CNG cylinder, which stores natural gas under high pressure, needs to be periodically tested to prevent any potential hazards due to material fatigue, corrosion, or cracks that may compromise its performance and safety. The hydrotest involves filling the cylinder with water to a specific pressure, well beyond its normal operating pressure, to check if it can withstand this pressure without any leakage or deformation. During the test, the cylinder is submerged in water, and pressure is gradually applied to simulate extreme conditions. If there are any leaks, bulges, or cracks, the cylinder fails the test and must be either repaired or replaced.
The hydrotest is typically conducted at authorized service centers or CNG filling stations by trained technicians. The test is an essential part of the CNG cylinder maintenance schedule, as most CNG cylinders have a specific lifespan and must undergo a hydrotest every 3 to 5 years, depending on the manufacturer’s guidelines. The results of the hydrotest are documented, and the cylinder is re-certified if it passes the test. This certification ensures that the cylinder remains safe for continued use.
If the hydrotest shows that the cylinder is not fit for service, it is either retested after repairs or replaced with a new one to prevent safety risks like gas leaks, explosions, or ruptures. In some cases, older cylinders that have passed their expiration date may no longer be eligible for retesting and will need to be completely replaced. Hydrotesting is crucial to maintaining vehicle safety, ensuring that the CNG system operates within the safety standards set by regulatory authorities, and prolonging the life of the CNG system. Regular hydrotests help car owners avoid accidents and ensure that the vehicle continues to run efficiently and safely on CNG fuel.