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Title: Development And Operation Of The Piedmont Natural Gas Company 80M Transfer Prover
Author: Tom Broome, Alan Higgins
Source: American Gas Association 1987
Year Published: 1987
Abstract: For years, the industry lacked the capability to field test satisfactorily the accuracy of large capacity (up to 80,000 CFH) rotary and turbine gas meters. Differential and spin test methods for testing rotary and turbine meters in the field were only indications of the meters mechanical condition, not the meters proof. The last resort, when dealing with a large volume customers high bill complaint, was to return the large meter to the factory for testing. This was expensive, time consuming, and very inconvenient. Under these circumstances. Piedmont Natural Gas Company decided to develop a large volume portable prover capable of testing both rotary and turbine type meters. This paper describes the unique design, which allows the prover to accurately test rotary and turbine meters from low flow to full capacity flow. In addition, the procedure for certifying the prover accuracy and the basic operation involved in performing a test are discussed.

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