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  • Users: johnull
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  1. johnull

    Balon floating ball valve leaking

    Hello. Is anyone familiar with the Balon floating ball valve? These valves are very easy to maintain/redress, however, I feel no matter how good of a job you do when performing maintenance, you never know if it is going to leak. The only thing I can say 100% sure works is a flange sealant...
  2. johnull

    How to correctly grease a gate valve in line/manifold

    Simple question, tricky to answer I guess. How do you correctly grease a valve that is mounted on a manifold or in a process line without getting grease in the bore? The bleeder plug is obviously a good thing, but a lot of valves do not have this, and I believe it is hard/impossible to grease it...
  3. johnull

    Which API 6A Gate valves should I choose?

    Hello, I am trying to figure out the different pros and cons when it comes to the normal API 6A gate valves used in kill & choke, standpipe and well test system. There are many different suppliers (WOM, T3, Anson, Cameron etc) and some seem to use the same principle. However, I have come across...
  4. johnull

    API 6A recertification

    Hello, I can't find out if API 6A says anything about recertification? I currently hold a copy of 6A 21st edition, however, I am not manufacturing anything. To make myself more understandable. I have a gate valve, I have repaired tons of them. But I want to know if I am doing it correctly...

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