This case study will detail the process used to release and exercise seized valves in three water distribution systems, including the methodology and level of effort required. It will also compare traditional high-torque and vibrational low-torque technologies, citing the pros and cons of each and the relative costs versus repair or replacement. Valves are critical system control points in water and wastewater systems. Over time, their performance can degrade and, in many cases, stop working altogether. This case study will detail the efforts made to release seized valves in three water distribution systems located in Illinois. Using technology developed in the UK, field crews successfully released and exercised the targeted valves in each community.                                                                    Each utility provided a list of known, seized valves. Attempts had previously been made to manually exercise these valves, and via high-torque mechanical operating machines. Field crews implemented a different technology to release and exercise the valves, using controlled-frequency vibration and low torque. This presentation will detail the steps taken and the level of effort required to release and exercise the valves. It will also compare traditional high-torque and vibrational low-torque technologies, citing the pros and cons of each and the relative costs versus repair or replacement.
After this session, participants will be better able to:
• Explore how other utilities facing the same infrastructure challenges handle seized or critical valves.
• Report on a new technology in the US that can save the utility time and money.
• Adapt to emerging technologies hitting this industry, and recognize that replacement isn’t always the only option.
Contributor/Source
Randy Lusk-Vice President of Innovations & Solutions, Stuart Williams-Head of Asset Risk & Engineering
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Proficiency Levels
Introductory
Focuses on a general or broad overview of the topic, awareness of basic factual recall. Limited experience of the subject matter is necessary to understand content areas.
Applied
Focuses on practical implementation of technical steps or strategies, some prior knowledge and experience of the topic is necessary.
Advanced
Mastery of basic concepts associated with an area has been obtained. Focuses on understanding nuances, advanced concepts, and intricacies with implementation within knowledge area. Strong understanding of how the concept impacts other factors or areas of operations.
Program Types
CLL
Click, Listen & Learn (CLL) are interactive educational webinars. Each program is led by top experts in the field who share new ideas, methods, and technologies in a fast-paced two-hour time frame. These programs are available free to APWA members. CLL programs are eligible for continuing education units (CEUs).
Primer
Primers are used to educate policymakers about public works roles and responsibilities in public rights of way, the impact of federal workforce development policies on the industry and workforce, and the importance of resilient infrastructure.
Public Works Radio Podcast
Public Works Radio is the official podcast of the American Public Works Association (APWA), bringing the stories behind our communities to life. This podcast shines a spotlight on the people and projects that keep our cities running—humanizing the work and the professionals who make it happen. Each episode dives into a wide range of topics designed to educate and inspire, making public works more visible to everyone.
PWX
PWX session recordings cover a wide variety of topics, including integrating modes of transportation, traffic and transit, construction management, emergency management, engineering and technology, fleet and facilities, management, parks and grounds, snow and ice control, and stormwater/flood control, as well as solid waste, roads and bridges and water/wastewater. PWX sessions are eligible for continuing education units (CEUs).
Reporter Articles
APWA Reporter articles are written by public works practitioners on subjects such as solid waste management, water resources, municipal engineering, transportation, equipment services, buildings and grounds, snow removal, and other public works-related topics.
Snow
The Snow Conference session recordings feature public works professionals sharing the latest best practices in managing winter/snow operations more successfully, taking advantage of emerging technologies, understanding and preparing for the challenges ahead, and providing better service to their communities. Snow sessions are eligible for continuing education units (CEUs).
Tech Boxes
A tech box is a PDF take-away that provides information in lists, steps, or defined areas specifically focused on trending technologies.
Virtual Program
Virtual programs are live, interactive educational programs led by top experts in the field who provide timely information or address trending topics within an area. Programs often conclude with an open forum for Q&A.