Ansi Hi 9.8 Rotodynamic Pumps For Pump Intake Design

ANSI/HI 9.8 standard, titled "Rotodynamic Pumps for Pump Intake Design,"

Market Use: Widely used in municipal water/wastewater, petrochemical, and power plant cooling systems. Key Design Criteria and Acceptance Standards

When to Use HI 9.8

Apply it for:

In the world of fluid handling, a pump is only as good as the water it receives. If the intake design is flawed, even the most expensive rotodynamic pump will suffer from efficiency loss, vibration, and premature mechanical failure. The industry gold standard for addressing these challenges is ANSI/HI 9.8 (Rotodynamic Pumps for Pump Intake Design)

Best Practices for Pump Intake Design

Part 4: Vortex Classification – The HI 9.8 “Vortex Scale”

Before you can design against vortices, you must identify them. HI 9.8 provides a standardized Vortex Scale (Type 1 to Type 6):

NPSH Management: Helps engineers meet Net Positive Suction Head requirements by reducing entrance losses and pressure drops. Intake Types Covered ansi hi 9.8 rotodynamic pumps for pump intake design

"A vortex?" Miller laughed. "We have a vortex breaker designed in."

Physical Model Studies: Requires physical scale modeling if a proposed design deviates from the standard's established "standard intake" geometries. Common Intake Structures Covered The standard specifies designs for several applications: ANSI/HI 9