ANSI/HI 3.1-3.5-2021
Rotary Pumps for Nomemclature, Definitions, Application, and Operation

Standard No.

ANSI/HI 3.1-3.5-2021

Release Date

2021

Published By

American National Standards Institute （ANSI)  US  /  ANSI

Latest

ANSI/HI 3.1-3.5-2021

Scope

This standard applies to industrial/commercial rotary positive displacement pumps. It includes types and nomenclature; definitions; design and application; and installation, operation, and maintenance. It does not include standards on magnetic drives for sealless pumps (see ANSI/HI 4.1-4.6 Sealless, Magnetically Driven Rotary Pumps for Nomenclature, Definitions, Application, Operation, and Test) nor rotary pumps primarily used for fluid power applications. For information on rotary pump tests, see ANSI/HI 3.6 Rotary Pump Tests.

ANSI/HI 3.1-3.5-2021 Referenced Document

• ANSI/HI 3.6 Rotary Pump Tests*， 2026-05-01 Update
• ANSI/HI 4.1-4.6 Sealless Magnetically Driven Rotary Pumps for Nomenclature, Definitions, Application, Operation, and Test

ANSI/HI 3.1-3.5-2021 history

• 2021 ANSI/HI 3.1-3.5-2021 Rotary Pumps for Nomemclature, Definitions, Application, and Operation
• 2008 ANSI/HI 3.1-3.5-2008 Rotary Pumps for Nomenclature, Definitions, Application and Operation

Standard and Specification