How to check a pressurized tank?

When you buy a new pressurized tank, it is essential that the three safety inspections listed below are carried out:

1. Color coding and labels. Although cylinders are color coded, this should not be relied upon to identify the contents. The label affixed to the cylinder must always be used as the primary means of contents identification. Cylinders without labels or where the label doesn’t match the color coding should not be used. Contact your supplier on that issue.

Having determined the contents of the cylinder, it is then necessary to check that the gas is suitable for the application. The pressure of the gas in the cylinder should not be greater than the regulator fitted.

2. Tank valve. The tank valve comes fitted to the cylinder when it is delivered. It is basically an open or closed valve operated with a key/spanner. The pressure regulator is then fitted to this. If the valve is on a newly filled, unused cylinder it should have a factory sealing cap in place. Checks should be carried out to ensure the fitting is undamaged and contaminate free. 

3. Check the pressure regulator:

• should be the date stamp or code (the inspection period of usually 5 years);
• make sure that the identification and rating label is in place along with the manufacturer’s name and logo;
• If it complies to local standards for pressure regulators and gauges are marked to comply with the appropriate local standards;
• If there are any signs of damage or modifications.
• if the regulator gauges are in place and of the correct type for the gas and scales suitable for the gas pressures. 

In case you suspect that something is wrong with your tank, it is best to call in specialists for a thorough check.