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  1. Meqdadkhan

    Pump trps on high current

    A pump always trip on high current before even the pump reaches the design flow rate. The pump rated flow is 20 m3/hr and now it is operating continuously at 7 to 8 m3/hr. The pump does not have a minimum recycle line. Both pump and motor recently have been serviced and after the startup the...
  2. Meqdadkhan

    Seal Welded Seat Rings

    Dear all, With reference to API 600 Standard for steel Gate Valves (Thirteen Edition, January 2015) clause 5.3.3.4: “Threaded seat rings shall be seal welded; tack welding or stitch welding is not permitted”. My question is, what are the implications if the seat ring was tack welded and not...
  3. Meqdadkhan

    between bearing pump type

    What is the difference between BB1 & BB2 rather than BB1 is axially split casing and BB2 is radially split casing? When should I select BB1 / BB2?

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