API 610 11th , paragraph 6.1.4 Head increase
API 610 11th , paragraph 6.1.4 Head increase
(OP)
Hi All,
Can somebody explain me how to calculate head increase that stated on the API 610 11th paragraph 6.1.4 "Pumps shall be capable of at least a 5% head increase at rated conditions by replacements of the impeller(s) with one(s) of larger diameter or different hydraulic design, variable-speed capability or use of a blank stage"?
For example,
Rated impeller = 299mm
Max.Impeller = 305mm
rated head at rated impeller = 500m
maximum head at rated impeller = 564.6m
maximum head at max impeller = 590m
are the data above have deviation with API 61011th para 6.1.4?
thank you very much
Can somebody explain me how to calculate head increase that stated on the API 610 11th paragraph 6.1.4 "Pumps shall be capable of at least a 5% head increase at rated conditions by replacements of the impeller(s) with one(s) of larger diameter or different hydraulic design, variable-speed capability or use of a blank stage"?
For example,
Rated impeller = 299mm
Max.Impeller = 305mm
rated head at rated impeller = 500m
maximum head at rated impeller = 564.6m
maximum head at max impeller = 590m
are the data above have deviation with API 61011th para 6.1.4?
thank you very much





RE: API 610 11th , paragraph 6.1.4 Head increase
What this is saying is that if, for whatever reason, you need to increase the rated head by at least 5%, there is the potential to do it. The actual maximum head is vendor dependant.
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RE: API 610 11th , paragraph 6.1.4 Head increase
Johnny Pellin