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Sonney Orifice Flow Computer

The Sonney Orifice Computer was developed by K.J. Sonney and Produced originally by Willsonn Computers from Little Hocking Ohio circa 1958. It is the industry standard for spot checking orifice metered flow rates. Easy to use and reliable it is still a 'must have' tool for every gas and oilfield production engineer, operator and supervisor. It is defined as a computer because it is in actuality a slide rule.

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Supercompressibility (Fpv) correction is provided on the face of the computer.
Orifice diameters range from 1/16" to 30".
Delivery rates up to 1 billion cubic feet per day
Differential pressures from 0.1 to 200 inches of water for meter computations and 1 pound to 10,000 pounds for estimating flow through "chokes".
Pressures from 29" of mercury vacuum to 10,000 psi guage.
Gravity correction -- 0.1 to 1.5

Informational Literature