Hydraulic Institute (HI)

HI About - Since 1917, the Hydraulic Institute (HI), the largest association of pump industry manufacturers in North America - has served member companies and pump users by providing product standards and a forum for the exchange of industry information. HI has established itself as the leading spokesperson for the North American pump industry. The Institute offers a wide variety of programs and services, each tailored to member needs: standards development, networking opportunities, access to specific statistical data and economic reports, promotional opportunities, educational materials, breaking industry news, participation in industry initiatives, and more. 

 General Standard

• HI 9.1-9.5 - Pumps - General Guidelines

Air-Operated Pumps

• HI 10.1-10.5 - Air-operated Pumps
• HI 10.6 - Air-operated Tests

Centrifugal Pumps

• HI 1.1-1.2 - Rotodynamic Centrifugal Pumps for Nomenclature & Definitions
• HI 1.3 - Rotodynamic Centrifugal Pumps for Design and Applications
• HI 1.4 - Rotodynamic Centrifugal Pumps for Manuals Describing Installation, Operation and Maintenance
• HI 1.5-5.6 - Sealless Rotodynamic Centrifugal Pumps for Nomenclature, Definitions, Application, Operation and Test
• HI 9.6.1 - Rotodynamic Pumps Guideline for NPSH Margin
• HI 9.6.2 - Rotodynamic Pumps Guideline for Assessment of Applied Nozzle Loads
• HI 9.6.3 - Rotodynamic (Centrifugal and Vertical) Pumps - Guideline for Allowable Operating Region
• HI 9.6.4 - Rotodynamic Pumps for Vibration Measurement and Allowable Values
• HI 9.6.5 - Rotodynamic (Centrifugal and Vertical) Pumps Guideline for Condition Monitoring
• HI 9.6.6 - Rotodynamic Pumps for Pump Piping
• HI 9.6.7 - Effects of Liquid Viscosity on Rotodynamic (Centrifugal and Vertical) Pump Performance
• HI 9.6.8 - Rotodynamic Pumps - Guideline for Dynamics of Pumping Machinery
• HI 11.6 - Rotodynamic Submersible Pumps: for Hydraulic Performance, Hydrostatic Pressure, Mechanical and Electrical Acceptance Tests
• HI 12.1-12.6 - Rotodynamic (Centrifugal) Slurry Pumps
• HI 14.6 - Rotodynamic Pumps for Hydraulic Performance Acceptance Tests
• HI 20.3 - Rotodynamic Pump Efficiency Prediction
• HI 40.6 - Hydraulic Institute Standard for Methods for Rotodynamic Pump Efficiency Testing

Controlled-Volume Metering Pumps

• HI 7.1-7.5 - Controlled-volume Metering Pumps
• HI 7.6 - Controlled-volume Metering Pumps for Test

Reciprocating Pumps

• HI 6.1-6.5 - Reciprocating Pumps
• HI 6.6 - Reciprocating Tests
• HI 8.1-8.5 - Direct Acting Pumps

Rotary Pumps

• HI 3.1-3.5 - Rotary Pumps
• HI 3.6 - Rotary Pump Tests
• HI 4.1-4.6 - Seamless, Magnetically Driven Rotary Pump for Nomenclature, Definitions, Application, Operation and Test
• HI 9.6.9 - Rotary Pump - Guidelines for Condition Monitoring

Vertical Pumps

• HI 2.1-2.2 - Rotodynamic Vertical Pumps of Radial, Mixed, and Axial Types for Nomenclature and Definitions
• HI 2.3 - Rotodynamic Vertical Pumps of Radial, Mixed, and Axial Types for Design and Application
• HI 2.4 - Rotodynamic Vertical Pumps for Manuals Describing Installation, Operation, and Maintenance
• HI 9.6.1 - Rotodynamic Pumps Guideline for NPSH Margin
• HI 9.6.2 - Rotodynamic Pumps Guideline for Assessment of Applied Nozzle Loads
• HI 9.6.3 - Rotodynamic (Centrifugal and Vertical) Pumps - Guideline for Allowable Operating Region
• HI 9.6.4 - Rotodynamic Pumps for Vibration Measurement and Allowable Values
• HI 9.6.5 - Rotodynamic (Centrifugal and Vertical) Pumps Guideline for Condition Monitoring
• HI 9.6.6 - Rotodynamic Pumps for Pump Piping
• HI 9.6.8 - Rotodynamic Pumps - Guideline for Dynamics of Pumping Machinery
• HI 9.8 - Intake Design for Rotodynamic Pumps
• HI 12.1-12.6 - Rotodynamic (Centrifugal) Slurry Pumps
• HI 14.6 - Rotodynamic Pumps for Hydraulic Performance Acceptance Tests