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  • Users: badr82
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  1. badr82

    Under Ground Water Pipes Connectors

    Hi,,, I have a problem with the water pipes couplers bolts that located under ground in corrosive soil, what bolts is suitable in this case, and what unit-corrosion material should I use to protect them?
  2. badr82

    NPSH Calculation

    Hi.... Please, how can I calculate the NPSHa for a pump? And, What is the deference between NPSHa and NPSHr?
  3. badr82

    Frection loss

    Hi.... My questions is: 1-Is the three equations of calculating the head loss (Hazen-Williams formula, Darcy-Weisbach formula and Chezy-Manning formula) applicable all times in calculating the head loss? 2-If the pipe has many low and high points along the rout, how could I use these equations?
  4. badr82

    Pump Discharging Pipe Length

    Hi..... We install a new booster pump (Lawara, 1.5 liter @ 200m head)in mountain area. The length from the booster to the end point is 6km and the discharge pipe is HDPE 63mm outside dia, 16 bar (SDR-11). The problem was that, the water didn't reach the last point unless we set the discharging...

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