American National Standards Institute ANSI pump

One general source of pump terrninology, definitions, rules, and standards is the HydrauHc Institute (HI) Standards (9), approved by the American National Standards Institute (ANSI) as national standards. A classification of pumps by type, as defined by the HI, is shown in Figure 1. 

Standard Chemical Pump. In 1961, the American National Standards Institute (ANSI) iatroduced a chemical pump standard (29), known as ANSI B73.1, that defined common pump envelope dimensions, connections for the auxiUary piping and gauges, seal chamber dimensions, parts mnout limits, and baseplate dimensions. This definition was to ensure the user of the availabiUty of iaterchangeable pumps produced by different manufacturers, as well as to provide plant designers with standard equipment. A typical ANSI chemical pump, known as of the mid-1990s as ASME B73.1M-1991, is shown ia Figure 6. 

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. 

FIG. 10 37a Horizontal process pump conforming to American National Standards Institute (ANSI) Standard B73.1-1977. 

Displacement Compressors, Vacuum Pumps and Blowers, ASME PTC 9-1970, ANSI PTC 9-1974, New York American Society of Mechanical Elngineers, 1970. New York American National Standards Institute, 1974,... 

Pump standard Pump designed according to American National Standard Institute Standards is an ANSI pump. Pump designed according to American Petroleum Institute Standard 610 is an API pump. 

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