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  1. Kokevi

    Full encirclement on fittings

    Hi All, I am designing some piping according to B31.4 and this includes a number of places where supports are welded onto the pipe. I am using full encirclement as per the code at these locations, as the stress is > 20%. However, I am not quite sure what to do at a location where I need to...
  2. Kokevi

    Running a pump without a gearbox

    Hi, I have a VFD controlled 55 kW motor running a centrifugal pump through a gearbox. The motor runs at 50Hz with the current setup. Not a vary variable duty, almost fixed speed with occasional slight variation (about 5Hz). Someone has suggested removing the gearbox (for a new stream, same...

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