In last month’s column [“Automatic Pumpdown Systems,” Nov. 5], we talked in general about the automatic pumpdown cycle and why it is the only sure remedy for refrigerant migration to a compressor ...

The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable-frequency controllers ...

Journal AWWA publishes articles about water industry issues that cover all AWWA activities and interests. It communicates innovations, trends, controversies, and challenges. The scope of Journal AWWA ...

LONDEX, LTD., 207 Anerley Road, London, S.E.20, have introduced a patented system (“Lectralevel”) of floatless liquid level control, designed for automatically pumping out, filling or maintaining the ...

The Ardex AMP 100 and AMP 200 automatic mixing pumps are self-contained, all-in-one units for mixing and pumping pre-blended, cementitious materials. They are part of Ardex Ardiflo, an integrated ...