Buried Service
A major U.S. products Pipeline Company had a requirement to replace a number of 3' and 4”, ANSI 150 Series, ball and plug valves installed in meter prover drain applications. They wanted to minimize future outage time and costs associated with buried leaking prover valves. The original valves were buried below grade at varying depths (between 6 and 12 feet) with handwheels that extended down from the surface, to the valve installation. The pipeline company wanted to replace the valves with valves that included a Double Block & Bleed feature to ensure seal integrity in the future from the surface. The leakage of the previous meter prover valves caused repeated poor meter accuracy and ultimately extended delays in operations. They also wanted to minimize the costs and time-loss associated with replacing/repairing (excavation costs estimated at greater than $25,000) buried valves.
Service Details
Chromatic Industries developed a new product line, the EBV, incorporating the existing HCV Valve concept and the Double Block and Bleed (provable seal) design with a new innovative extended body so the valve’ internals (Cartridge) can always be accessed from the surface without costly, lengthy excavation.
With this new innovative EBV Valve, they are able to verify the valve is sealing from the surface as a result of the Double Block and Bleed design. They also have the ability to replace/repair internals in less than one day with the added feature of the extended body (as opposed to planning a significant project scheduling an extended outage with loss of operational time/revenue, employing a contractor for significant excavation, and no more need to remove and test large amounts of surrounding soil for contamination).
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