I have read that " Pressure seal bonnet valves shall be used only in steam or other clean non-corrosive services", anybody knows the technical behind that please???
2nd question:
Screwed bonnet shoul be tack welded to the secrewed body or provided with lockin pin,
Could any body please...
Good day all,
We have a diesel tank ,there is portion of piping systm 95 m in length, It connects the tank to MOV .There is an isolation valve on the tank.That means the 95 piping is extend between the isolatin valve and the MOV(motor operated valve).Do we need relief valve to protect the pipe...