PARSIPPANY, N.J. - The Hydraulic Institute (HI), under the approval of the American National Standards Institute (ANSI), is seeking qualified individuals in North America to participate in the review process for the draft of updated standard ANSI/HI 2.1-2.2, Rotodynamic (Vertical) Pumps for Nomenclature and Definitions. This standard applies to vertical diffuser, submersible motor, deep well pumps and vertical diffuser, submersible motor, short set pumps.

These pumps are typically driven by vertical electric motors or horizontal engines with right angle gears. The standard also includes types, nomenclature, and definitions for these pumps. Excluded from the scope of products are vertical inline pumps; horizontal centrifugal pumps mounted vertically, such as sewage pumps; and vertical, overhung impeller, close coupled, single stage submersible pumps.

Individuals and organizations in North America directly and materially affected by this standard are asked to contact HI. These parties include pump users and specifiers, producers, standards developers, government agencies, and general interest groups. HI is currently assembling a canvass list of all parties interested in reviewing the draft. This list will be submitted to ANSI in order to meet its open canvass requirements.

To participate in the ANSI/HI canvass, contact Karen Anderson, administrator, technical affairs, at or call 973-267-9700 ext. 23.

For more information, visit

Publication date:12/03/2007