Importance of CNG Cylinder
hydro testing

1) Safety Assurance: CNG cylinders operate under extremely high pressures. Ensuring the integrity of the cylinder is paramount to prevent catastrophic failures, such as ruptures or leaks, which can lead to serious accidents, injuries, or even fatalities.
2) Detection of Weaknesses: Hydrostatic testing involves filling the CNG cylinder with water and pressurizing it to a specified test pressure. During this process, any weaknesses, defects, or damage in the cylinder's structure become evident. If there are any cracks, corrosion, or other issues, the cylinder may fail the test.
3) Compliance with Regulations: Regulatory bodies like PESO in India mandate regular hydrostatic testing for CNG cylinders. Compliance with these regulations is necessary to legally operate CNG-powered vehicles or use CNG cylinders in industrial applications.
4) Preventing Cylinder Failures: Hydrostatic testing helps identify cylinders that have weakened over time due to factors such as wear and tear, corrosion, or damage. Identifying compromised cylinders allows for their removal from service, preventing potential accidents or incidents.
5) Periodic Inspection: CNG cylinders have a limited service life, and their structural integrity can deteriorate over time. Hydrostatic testing is a periodic inspection process that helps determine if a cylinder is still fit for use or if it needs to be requalifies or retired.
6) Record Keeping: After a successful hydrostatic test, the cylinder receives a certification or requalification stamp. This documentation provides a record of when the test was conducted and by whom, helping to track the cylinder's testing history. 7) Liability Reduction: Regular hydrostatic testing can reduce liability for cylinder owners and users. If an accident were to occur due to a compromised cylinder, having a documented testing history can demonstrate due diligence in maintaining cylinder safety.