EDUCTOR AND EJECTOR – in shipbuilding, industrial (How to distinguish, calculation, selection, and purchasing)

  At the beginning, there’s no need to fret over the differences that the different is in the motive fluid: An ejector uses a gas phase motive, usually steam or air.  An eductor uses a liquid phase motive, usually water.  Eductors/Ejectors … Continue reading EDUCTOR AND EJECTOR – in shipbuilding, industrial (How to distinguish, calculation, selection, and purchasing)

PIPING HYDRO-STATIC TEST COMPREHENSION

Two types “Shop test and After installation test” First, the hydro-static test of spool at Workshop is prefer to check the quality or strength of Welding joints, integral fittings and confirm whether it can satisfy the rule/standards requirement. TEST PRESSURE (Tp)= 1.5 DESIGN PRESSURE (Dp) “But we can not do final all spools at workshop and just bring on-board for assembly because there’re many Field Joints waiting you ahead. Depend on the flexibility of Rule/Spec, the low pressure pipe’s  field joints can be tested under max.working pressure” Second, in ideal condition, no more welding joints on-board, the Leak test will be … Continue reading PIPING HYDRO-STATIC TEST COMPREHENSION