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  1. JohariGregorio

    Welding valve ball on the line without demaging the seats

    Replying to Valvit: After removing the valve from the pipeline we are moving it to our workshop and we are going to cut it by burr and to ovehaul it. for bcd After the valve is installed we are going to test it with non destructive method such as radiography. Thanks again to all for your...
  2. JohariGregorio

    Tempered glass: thermal and pressure resistance

    To all, I'm investigating the thermal (°C) and pressure (bar) resistance of 2 TEMPERED GLASS CIRCLE 1)diameter 115 mm tickness 15 mm 2)diameter 127 mm tickness 19 mm where can I find this information specifically for Tempered glass?
  3. JohariGregorio

    Welding valve ball on the line without demaging the seats

    Thanks to all of you. One more question: I would like to investigate more about cutting It implies to have slag if operated with plasma, laser or oxide acetylene. Otherwise it can be done by burr, but it takes longer time. It's understandable that our intention is to prevent at maximum interior...
  4. JohariGregorio

    Welding valve ball on the line without demaging the seats

    The valve size is from 4" up to 60" and working pressure up to 35o bar. The seats are made of PTFE, Nylon and even metallic. The maintenance processes consist of: -1) cutting valves from the process line in situ -2) Cutting it as marked in the picture attached. The presence of soft parts...
  5. JohariGregorio

    Welding valve ball on the line without demaging the seats

    I work for a maintenance and automation company. I'm facing the challenge of finding a way to weld fully welded body Ball Valve. The matter is that, ones the valve is opened and the seat replaced, the body must be welded again without damaging the seats with high temperature welding. As it...
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