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McCrometer’s V-Cone® Flow Meter
Testing Conforms To API 22.2
Ideal for Oil / Gas Well or Platform Production, Delivery and Refining Applications
With a track record for precision flow measurement solutions providing superior accuracy and repeatability in rugged environments, the testing of McCrometer’s V-Cone Flow Meter now conforms to the American Petroleum Institute’s API 22.2 Testing Protocol for differential pressure flow measurement devices.
Oil / gas platform production and petroleum refining engineers can rely on the V-Cone Flow Meter to require virtually no recalibration or maintenance over an exceptionally long life. Engineers can save retrofit time and costs with the V-Cone’s maximum installation flexibility because it accurately measures disturbed flow and doesn’t require the upstream and downstream pipe runs of other flow meters.
Designed for the measurement of liquid, steam or gas, and ideal for tough applications, the V-Cone Flow Meter supports a wide range of oil / gas production, pipeline delivery and petroleum refining applications. The V-Cone’s highly compact, no-moving parts design keeps operating costs down for key applications such as oil production, natural gas production, raw material refining and petrochemical production.
McCrometer’s versatile V-Cone Flow Meter is compatible with the demanding standards set by the oil/gas production, delivery and refining industry. It relies on an advanced differential pressure flow technology designed with built-in flow conditioning to achieve an accuracy of +0.5%, with a repeatability of +0.1%. It operates over a flow range of 10:1, and comes in line sizes from 0.5 to 120 inches.
With its unique ability to self-condition flow, the V-Cone Flow Meter is a real space-saver, eliminating the need for up/down stream straight pipe runs required by other DP technologies, such as orifice plates and venturi tubes. It can be installed virtually anywhere in a piping system or be easily retrofit into an existing piping layout, resulting in significant installation flexibility and initial cost savings.
Unlike traditional DP instruments such as orifice plates and venturi tubes, the
V-Cone Flow Meter’s design is inherently more accurate because the flow conditioning function is built-into the basic instrument. The V-Cone conditions fluid flow to provide a stable flow profile that increases accuracy. It features a centrally-located cone inside a tube. The cone interacts with the fluid flow and reshapes the velocity profile to create a lower pressure region immediately downstream.
The pressure difference, which is exhibited between the static line pressure and the low pressure created downstream of the cone, can be measured via two pressure sensing taps. One tap is placed slightly upstream of the cone and the other is located in the downstream face of the cone itself. The pressure difference can then be incorporated into a derivation of the Bernoulli equation to determine the fluid flow rate.
The cone’s central position in the line optimizes the velocity of the liquid flow at the point of measurement. It forms very short vortices as the flow passes the cone. These short vortices create a low amplitude, high frequency signal for excellent signal stability. The result is a highly stable flow profile that is repeatable for continuously accurate flow measurement. All of this is possible with a minimal straight pipe run of 0 to 3 diameters upstream and 0 to 1 diameters downstream from the flow meter.
to API 22.2
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