We have discussed the hazards of pneumatic pressure testing many times. Pneumatic pressure testing should be a “last resort” for pressure testing process equipment. But for those who question the degree of hazard this REQUIRED test brings about, here is something to consider. Take a look at the following comparisons between the stored energy in piping systems and the equivalent stored energy in Dynamite (e.g., TNT):
- 500 feet of 1″ pipe @150 psi = 1.6 ounces of TNT
- 500 feet of 2″ pipe @150 psi = 8.0 ounces of TNT
- 500 feet of 6″ pipe @150 psi = 5.0 pounds of TNT