Overview:

This standard provides guidance and recommendations for the general design and application of rotodynamic pumps, including centrifugal (radial), mixed, and axial flow types. It outlines accepted methods for evaluating hydraulic performance and the design of related and supporting equipment, while not addressing detailed hydraulic design procedures. The standard identifies key application requirements, principal features, performance considerations, and necessary precautions to ensure the proper use of rotodynamic pumps. It serves as a comprehensive resource for pump design engineers, specifying engineers, and end users across all markets, offering practical guidance relevant to each group.

The standard addresses a broad range of rotodynamic pumps, including:

• Overhung impeller pumps (OH).
• Between-bearing pumps (BB).
• Vertical suspended pumps (VS).
• Regenerative turbine pumps (RT).
• Special-effect pumps, such as Pitot tube, Vortex, screw centrifugal, high-speed, and solids-reduction types.
• Overhung impeller circulator pumps (CP).

For a complete overview of the design and application considerations covered in this standard, see the table of contents button below.

What’s New:

This standard supersedes the ANSI/HI 14.3-2019 edition. Updates in the new edition include:

• Expanded content on reverse runaway speed.
• Clarification of terminology between suction can and barrel (or suction barrel).
• General updates to formula writing.
• Revisions to Net Positive Suction Head (NPSH) topics.
• Comprehensive review of all appendices by multiple Hydraulic Institute (HI) committees to ensure accuracy.

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