API 682 - Shaft Sealing Systems
Pumps—Shaft Sealing Systems for Centrifugal and Rotary Pumps
API - American Petroleum Institute
www.api.orgThe American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry. Our more than 600 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry.
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Webstore | Standards
This standard specifies requirements for new centrifugal pumps, including pumps running in reverse as hydraulic power recovery turbines (HPRTs), for use in petroleum, petrochemical, and gas industry process services. This standard is applicable to overhung pumps, between-bearings pumps, and vertically suspended pumps (see Table 1). Section 9 provides requirements applicable to specific types of pumps. All other sections of this standard are applicable to all pump types. Illustrations are provided of the various specific pump types and the designations assigned to each specific type. Relevant industry operating experience suggests pumps produced to this standard are suitable for pumping liquids at conditions exceeding any one of the following: — discharge pressure (gauge): 275 psi; 19.0 bar (1900 kPa); — suction pressure (gauge): 75 psi; 5.0 bar (500 kPa); — pumping temperature: 300 °F (150 °C); — rotational speed: 3600 r/min; — rated total head: 400 ft (120 m)