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someguy79 (Mechanical)
20 Dec 11 13:17
I am a bit confused about horizontal, end suction, vertical discharge, centrifugal pump standards. The following discussion will be limited to this pump type.

These pumps are often categorized as ANSI or ISO pumps. The way ISO pumps are standardized is confusing to me.

I currently have access to ASME B73.1 and ANSI/API 610. I do not have access to all of the relevant ISO standards, but I plan to request them when I figure out which of them I need.

ASME B73.1
Pumps conforming to this specification are referred to as 'ANSI' pumps. Presumably, this is due to the legacy standards ANSI B123.1 and ANSI B73.1 from which ASME B73.1 was formed.

ANSI/API 610
This standard claims equivalence with ISO 13709, and therefore causes me a bit of confusion. What is its relation to the 'ANSI' and 'ISO' pumps?

ISO 2858
This standard could be the ISO pump couterpart to the ANSI pump (ASME B73.1). Is this correct? Does this standard give the interface requirements and dimensions (baseplate, mounting, pipe flange & locations, shaft size, shaft location, keyway, etc.) as is done for ANSI pumps?

ISO 5199
From other sources, it seems this standard could also be the ISO pump couterpart to the ANSI pump (ASME B73.1). Is this correct? Does this standard give the interface requirements and dimensions (baseplate, mounting, pipe flange & locations, shaft size, shaft location, keyway, etc.) as is done for ANSI pumps?
clay87 (Mechanical)
26 Dec 11 11:29
Thanks for asking.  I look forward to the answer!
Helpful Member!  keyepitts (Mechanical)
27 Dec 11 15:49
ISO likes to split up their standards into several different parts, to an even greater extent than ASME/ANSI. ISO 5199 is about 50 pages and describes the pump and seal design and testing requirements, and references ISO 2858 for dimensions. ISO 2858 is effectively 2 pages, and gives the pump dimensional standards (which, of course, are not included in ISO 5199).  Standards that reference other standards drive me nuts...

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