The Hydraulic Institute (HI), is reviewing the draft of updated Standard ANSI/HI 10.1-10.5 Air-Operated Pumps for Nomenclature, Definitions, Application, and Operation and ANSI/HI 10.6 Air-Operated Pump Tests.

These Standards apply to positive displacement air operated pumps including, but not limited to the following:

  1.      Diaphragm Pumps
  2.      Bellows Pumps

The purpose of ANSI/HI 10.1-10.5 document is to:

Provide readers with information regarding nomenclature, definitions, application, operation of positive displacement air operated pumps including, but not limited to diaphragm pumps, piston pumps, and bellow pumps.  Technical documents developed shall include, but are not limited to: types and nomenclature, definitions, design and application, installation, and operation and maintenance.

The purpose of ANSI/HI 10.6 document:

Applies to the test of air-operated diaphragm and bellows pumps only. Unless otherwise stated, all tests are conducted using water at ambient temperature.

Individuals and organizations located in North America directly and materially affected by these standards 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 drafts. This list will be submitted to ANSI in order to meet its open canvass requirements.

Hydraulic Institute

The mission of the Hydraulic Institute is to be a value-adding resource to member companies, engineering consulting firms, and pump users worldwide by developing and delivering comprehensive industry standards, expanding knowledge by providing education and tools for the effective application, testing, installation, operation, maintenance, and performance optimization of pumps and pumping systems, and by serving as a forum for the exchange of industry information. For more information on the Hydraulic Institute, its member companies and its Standards Partners, visit


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