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During the 1990s, it was popular for municipalities around the world to enter into agreements with private contractors for water and wastewater treatment plants and services. The trend has slowed and...
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The Foss Reservoir Master Conservancy District (FRMCD) in southwestern Oklahoma is part of the 8,800-acre Foss Reservoir/Foss Lake. The treatment plant, which is located adjacent to the Foss Dam, pumps...
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Actuators and controls are a critical process of how we move water through our supply and waste systems.
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To better understand the actuators and controls in our water systems, we discussed the types and some of the considerations for sizing in the first part of this article, which appeared in the print...
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Air valves are hydromechanical devices designed to automatically release air and wastewater gases or admit air during the filling, draining or operation of liquid piping systems for water and...
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Wastewater systems present many challenges to pumps and valves because the flow can contain grit, solids and debris, depending where in the process the equipment is located. That’s why the eccentric...
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Editor's Note: This article is an excerpt from Cylinder and Vane Actuators and Control—Design and Installation, published by the American Water Works Association in 2015. Part I of this article is an...
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After decades of confusion, the American Water Works Association (AWWA) has created new standards for actuator sizing that clear up some of the confusion and also provide guidance on where safety...
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The history and general application of elastomers in pipes, valves and fittings is the subject of the recently published Manual of Practice developed by the American Water Works Association (AWWA).
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