Hydro Test of Nitrogen Cylinders
Hydro Test of Nitrogen Cylinders
(OP)
What should be the frequency of hydrotesting of pressurized Industrial Nitrogen Cylinders?
I feel that once it is hydrotested at supplier's shop, should not require a retest untill some problem is evident.
Any comments please...?
I feel that once it is hydrotested at supplier's shop, should not require a retest untill some problem is evident.
Any comments please...?





RE: Hydro Test of Nitrogen Cylinders
Check with your local Jurisdiction that regulates pressure vessels. In some applications, like pressurized fire extinguishers they are small pressure vessels, and are hydrotested once every 3 or 5 years.
If these vessels are not regulated in lieu of hydrostatic testing, a visual inspection should be performed with at least UT of wall thickness to ensure safe operation once every 3 to 5 years. I would not wait until a problem develops.