Process specifications American National Standards Institute

Specifically but not exclusively for the chemical industry, most pump manufacturers now build to national standards horizontal and vertical process pumps. American National Standards Institute (ANSI) Standards B73.1—1977 and B73.2—1975 apply to the horizontal (Fig. 10-37fl) and vertical in-hne (Fig. 10-37 7) pumps respectively. 

The American National Standards Institute (ANSI) serves as the administrator and coordinator of the US private-sector voluntary standardization system. ANSI oversees the creation, promulgation, and use of product specifications, standards, and guidelines that cover a wide variety of American manufactured products. ANSI facilitates the development of American National Standards (ANS) by accrediting the procedures of standards-devel-oping organizations (SDOs). These groups work cooperatively to develop voluntary national consensus standards. Accreditation by ANSI signifies that the procedures used by the standards body in connection with the development of American National Standards meet ANSI s essential requirements for openness, balance, consensus, and due process. 

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