News

DeZURIK Eccentric Plug Valves Still Operating After 27 Years & 19 Million Cycles

10/4/2017
DeZURIK Eccentric Plug Valves Still Operating After 27 Years & 19 Million Cycles

DeZURIK Eccentric Plug Valves Still Operating After 27 Years & 19 Million Cycles
DeZURIK Eccentric Plug Valves Still Operating After 27 Years & 19 Million Cycles
DeZURIK Eccentric Plug Valves Still Operating After 27 Years & 19 Million Cycles
DeZURIK Eccentric Plug Valves Still Operating After 27 Years & 19 Million Cycles

A water treatment plant in Tupelo, MS has 8” Figure 118 valves (a Cast Iron PEC with resilient plug) that have been operating every 45 seconds for 27 years. That’s over 19 million cycles! The valves have survived without repair all those years. Only the actuators have been repaired or rebuilt. The blue rain covers protect the actuators from the elements.

The application is air (might be dry or wet, depending on the weather). The valves are connected to the top of an airtight 16’ deep chamber with openings underwater at the bottom. When the valves close, vacuum pumps turn on and raise the water level in the chamber about 1.5 feet. After 45 seconds, the valves open and let air back into the chambers and allow the water level to drop back to normal, pushing water out of the openings in the bottom. That action causes a stirring effect in the water tank and keeps solids from settling.

To see the valve in action, visit the DeZURIK YouTube channel at https://www.youtube.com/watch?v=wiC-nZtJe9E

 

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DeZURIK Eccentric Plug Valves Still Operating After 27 Years & 19 Million Cycles

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