Why Municipalities Incorporate Valve Exercising?

Water distribution valves are essential components of municipal water systems, primarily designed to regulate the flow and distribution of water. Often situated underground and typically left in an open position, these valves are vulnerable to several issues, including rust formation, cathodic damage, and becoming stuck in place. Over time, they may become obscured by dirt or inadvertently paved over, making them more difficult to locate and access. In colder climates, the ground’s repeated freezing and thawing can also cause the valves to shift, complicating their operation and maintenance.

A crucial aspect of valve management is the process known as valve exercising. This involves meticulously locating the valve, which may require digging or clearing away debris, and then cleaning the valve box to ensure unobstructed access to the valve nut. Once accessible, the valve must be operated to verify its functionality. It is vital to regularly turn these valves, as some can be accidentally left closed, resulting in reduced water pressure and flow rates throughout the distribution system. This exercise highlights the importance of maintaining meticulous documentation of valve maintenance activities. Keeping accurate records ensures that all valves are given appropriate attention and that any valves identified as inoperable are marked for replacement.

Undertaking valve exercising by hand can be physically demanding, posing risks of strain or injury, particularly lower back injuries, for valve operators. To mitigate these risks and improve efficiency, many cities have adopted the use of specialized valve operating machines. These machines are equipped with advanced features such as revolution counters, torque gauges, and GPS technology to accurately document valve operation data and maintenance histories.

These automated machines significantly enhance productivity, allowing for the operation of many more valves daily compared to manual methods. They contribute to a consistent workflow, ensuring that all valves in the system are exercised and maintained regularly. Complete valve maintenance units, which often include pressure washers, excavating vacuums, hydrant flushing diffusers, and valve operating machines, are typically mounted on trucks or trailers. This setup enables quick mobilization and efficient handling of valve maintenance tasks, ultimately supporting the reliable operation of water distribution systems in urban areas.