The History of Electric Motors In the 1830's, Michael Faraday made a discovery that has made work easier for all of us. While experimenting with magnets he found that moving a wire through a magnetic field would produce an electric current. This experiment is important because it led to the discovery of the operating principles [...]
Packing The Pump Correctly The importance of packing the pump correctly cannot be overemphasized. Many packing failures are due to incorrect installation of the packing. The following steps have been devised to ensure effective installation of packings on pumps: 1) REMOVE ALL THE OLD PACKING FROM THE STUFFING BOX. Clean box and shaft thoroughly and [...]
Packings may fail for a variety of reasons. Beside improper installation, packing failures are often due to worn or faulty equipment, shaft misalignment, uneven take-up on the gland bolts, and other causes. If you are having trouble, carefully remove and examine the old packing set. DO NOT THROW THE SET AWAY, because it often gives [...]
When flow rate through a pump system is controlled by a discharge throttle valve, there is valuable energy going to waste. (It's like driving with your brakes on.) A Variable Frequency Drive (VFD) can harness that energy by matching pump speed to flow rate. To calculate the potential savings, measure the pressure drop across the [...]