Linear Flow Orifice Meter Designs for Pre-set Flow Rates
Introduction
The LFOM mimics the Sutro weir with a series of holes positioned vertically on a riser pipe. Due to the approximation, and rounding errors, it is currently assumed that several preset designs are more accurate than a program that accepts any plant flow rate. The pre-set designs will ensure that there is never a ordering of holes simliar to 1, 0, 2, 1. This occurs because in the second row the number of holes requested was a fractional amount and then in the subsequent row the program calls for 1 and a fractional hole which rounds to two holes. Installation of a LFOM for a higher flow rate than necessary won't degrade th performance and it is a way to ensure quality in the design.
Designs for pre-set flow rates
Flow Rate (L/min) |
LFOM Design |
Pipe Diameter (in) |
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100 |
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200 |
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300 |
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400 |
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500 |
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600 |
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700 |
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800 |
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900 |
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1000 |
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