Re: Hydrotest (High point) Vents

My assupmtion here is that a qualified welding is being perform - that is a qualified procedure is in place and and the you got a qualified welder (we dont call them certified).

The welding is then performed (doesnt matter wether its full penetration or fillet alla round or seal weld) based on a work package issued by a competent engineer.

Will it fail? It might. Will a more stringent procedure prevent the failure? Probably. The problem is not really the cracking of the weld - the more serious problem i see is the consequence of such failure most specially if it would result in serious injuries or fatalities.

Will the welding if done properly avoided the failure like cracking - probably or probably not. Thats what risk is all about.

• In PipingDesign@yahoogroups.com, Christopher Wright <chrisw@...> wrote:
  >> >
  > The biggest problem is not the cracked seal weld, the problem is
  the
  > crack itself, which may propagate into the vessel wall. Almost as
  > significant is a what-the-hell-it's not-a-strength-weld attitude
  > toward such welding.
  >
  > >