As I wrote in the subject I would like to know what's the function of reducers in a by-pass, I attach a little picture to clarify things, I hope you will answer me, many thanks.
So you don't have to buy a big 6" control valve and run it 20% open (with poor control characteristics) when you could otherwise have a properly sized 4", pay less money and run it between 30% - 80% (at a good range for change in pressure or flow vs a reasonable change of position).
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"Pumping accounts for 20% of the world’s energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies)
There is! Did you just focus on the cost part of it?
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"Pumping accounts for 20% of the world’s energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies)
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"Pumping accounts for 20% of the world’s energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies)
I took it as the whole assembly being a bypass for an attached piece of equipment and the 4" block valve being a bypass for the control valve. No matter. Still the same.
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"Pumping accounts for 20% of the world’s energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies)