Do end-users really care about fugitive emission, or do they only want cheaper valves? Part 1   May be this is a provocative questions, it´s ment to be. In the resent years there have been written miles by miles with articles and recommendations, there have been preformed tests and there have been developed new product,…

Ingolf Fra Holmslet has worked as a consultant and valve instructor in Norway since 1985. He has been responsible for the valve-training program for Statoil for the last 25 years.   Why I dislike NPT threads in a hydrocarbon system. Part two.   As we discussed in the last issue, it can be difficult from…

Ingolf Fra Holmslet has worked as a consultant and valve instructor in Norway since 1985. He has been responsible for the valve-training program for Statoil for the last 25 years.   Why I dislike NPT threads in a hydrocarbon system. Part one.   There are many reasons why NPT (National Pipe Taper) threads are not…