hydrant valve Articles

  • Major Urban City Projected To Save $77 Million Over Next Decade From Valve And Hydrant Asset Assessment Program

    For large urban cities, one of the quickest ways to realize an investment return from their network of underground assets is to inventory the water distribution system and assess the overall condition of valves and fire hydrants. This progressive major southeast U.S. ...

  • Numbers Speak Volumes: Water Distribution Assessment Increases System Operability To 84 Percent

    This large Midwest utility maintains and operates water collection, treatment, and distribution systems, as well as wastewater collection and treatment systems and stormwater management systems for its residential, business and wholesale customers in the region. To ensure the accessibility and quality of water services to meet the growing needs of the ...

  • Portable Hydrant Flow Meters

    Leading the way for hydrant verification flow and pressure measurement Langham Industrial Controls strive to provide the most innovative market leading hydrant verification instrumentation. The Horizontal Standpipe Flow Meter provides unrivalled accuracy of ± 0.5% within a wide flow range. The swan neck design ensures that the AquaMasters electromagnetic sensor is always full and as the ...

  • Consequence management of chemical intrusion in water distribution networks under inexact scenarios

    The US Environmental Protection Agency (EPA)'s Response Protocol Toolbox provides a list of recommendations on actions that may be taken to minimize the potential threats to public health following a contamination threat. This protocol comprises three steps: (1) detection of contaminant presence, (2) source identification and (3) consequence management. This paper intends to explore ...


    By IWA Publishing

  • Case study - Peter Lougheed Provincial Park - Alberta, Canada

    Service: SmartBall - Leak Detection Client: Alberta Tourism, Parks and Recreation Project Date: July 2011 Location: Kananaskis, Alberta, Canada Type of Pipeline: Water Main Diameter: 6-inch Pipe Material: Polyethylene Length: 2,300 feet (700 meters) Pressure: 50 psi Results: 2 leaks Several other technologies failed to identify the location of the leaks that ...

  • What Causes Water Main Leaks?

    The number one cause of water leaks today and moving into the future will be the aging infrastructure. “A large part of the US public water system dates back to the years shortly after World War II, therefore, a significant amount of buried infrastructure is at or very near the end of its useful life.” – Qureshi & Shah, Journal AWWA. When aging infrastructure is combined ...


    By EnTech Engineering Company

  • Virus contamination from operation and maintenance events in small drinking water distribution systems

    We tested the association of common events in drinking water distribution systems with contamination of household tap water with human enteric viruses. Viruses were enumerated by qPCR in the tap water of 14 municipal systems that use non-disinfected groundwater. Ultraviolet disinfection was installed at all active wellheads to reduce virus contributions from groundwater to the distribution ...


    By IWA Publishing

  • Application of unidirectional flushing in water distribution pipes

    In this study unidirectional flushing (UDF) was conducted to improve the effectiveness of deposit removal from internal pipe walls and to provide information on pipe networks to enable operators to implement flushing in field. Four ductile cast iron pipes with epoxy-lined and cement-lined were selected for the practice of UDF. Water pressure was measured using a data logger equipped with a ...


    By IWA Publishing

  • Healthy Control Valves

    A simple maintenance routine can help ensure trouble-free valve operation. Whether the control valve in your system is the first one that has required maintenance or if you are experienced with maintaining multiple valves in your system, some simple guidelines can help keep them operating at optimal performance. Physically checking all valves at least every 12 weeks is important, assuming that ...


    By Singer Valve Inc.

  • Global: Increasing Efficiency with Permanent Leakage Monitoring - Case Study

    Abstract In this paper information from Water Authorities in the USA, Europe, Middle East and Australia that have purchased permanent monitoring leak detection equipment is reviewed and the findings are presented in a structured format that covers the following: Justification for permanent monitoring Evaluating the different product offerings Selecting ...


    By Gutermann AG

  • Oil Analysis Helps Water Plant Cut Annual Maintenance costs by $25,000 - Case study

    The city of Chandler (Ariz.) Municipal Utilities Department (MUD) employs coagulation, sedimentation, active flow control and filtration to produce 60 million gal per day (mgd) of water at its surface water treatment plant. In addition, the system includes 27 wells and 21 booster stations controlled by SCADA. Water distribution is provided through more than 1,200 miles of water main, in excess of ...


    By Spectro Scientific

  • Increasing efficiency with permanent leakage monitoring - Case study

    Abstract In this paper information from Water Authorities in the USA, Europe, Middle East and Australia that have purchased permanent monitoring leak detection equipment is reviewed and the findings are presented in a structured format that covers the following: Justification for permanent monitoring Evaluating the different product offerings Selecting the ...


    By Gutermann AG

  • Germany/Eislingen - Permanent leakage monitoring is the fastest way to reduce leakage - Case study

    The town of Eislingen in Southern Germany has practiced Active Leakage Control for many years with a team of two equipped with a ground microphone and correlator who drive around in a van searching for leaks. As many of the pipes are one hundred years they had a good success rate often finding leaks. With two hundred and forty kilometers in the network, there is a large area for one team to cover ...


    By Gutermann AG

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