Hydro Testing of Cylinders, which is also known as the hydrostatic stretch test is the process of testing the Gas Cylinders such as Oxygen, Argon, Nitrogen and Carbon Dioxide.
As per the guidelines of Petroleum & Explosives Safety Organisation, (PESO), it is mandatory for every High-Pressure Seamless Cylinder to undergo Periodical Hydro Testing Process after an interval of 5 years, or in-between as and when the need arises depending upon the existing condition of the cylinders. The cylinders have to be tested for strength and leaks. We have a Hydro Testing Station duly approved by PESO.
A cylinder is Periodically Hydraulically Tested at a pressure (called Test pressure) which can be 1.5 times or 1.66 times of working pressure depending upon the manufacturing standard of the cylinder. This testing procedure results are measured in terms of Percentage Permanent Expansion and shall fall in the certain prescribed limit as per the guidelines of PESO.