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Grundfos (Danish pronunciation: [ˈkʁɔnfʌs]) is the largest pump manufacturer in the world, based in Denmark, with more than 19,000 employees globally.. The annual production of more than 16 million pump units, circulator pumps (UP), submersible pumps (SP), and centrifugal pumps (CR).
Pump curves are quite useful in the pump selection, testing, operation and maintenance. Pump performance curve is a graph of differential head against the operating flow rate. They specify performance and efficiency characteristics. Performance tests are done on the pumps to verify the claims made by the pump maker.
CAGE is sometimes expanded as "Commercial Activity/Government Entity", "Contractor And Government Entity", or other, similar variations. In the NCS metadata, the CAGE code's Data Record Number ( DRN ) is 9250 (or 4140 for NSCM); information listed under this DRN identifies very specifically the semantics of CAGE, its syntax, and the procedures ...
The two-letter country codes were used by the US government for geographical data processing in many publications, such as the CIA World Factbook. The standard is also known as DAFIF 0413 ed 7 Amdt. No. 3 (Nov 2003) and as DIA 65-18 ( Defense Intelligence Agency , 1994, "Geopolitical Data Elements and Related Features").
The NIGP Code can be accessed in several ways. The most common is via the NIGP Code web search tool, the NIGP Living Code, which hosts a search engine for the Code for end users. The site also has a download section, which provides for end user download of the entire codeset or modifications to the codeset since the last download by the user.
Centrifugal pumps with an internal suction stage such as water-jet pumps or side-channel pumps are also classified as self-priming pumps. [10] Self-Priming centrifugal pumps were invented in 1935. One of the first companies to market a self-priming centrifugal pump was American Marsh in 1938.