Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Theory Bites: Inducers/Cavitation– NPSHR

Engineering & Design
Theory Bites Inducers

Theory Bites: Inducers/Cavitation– NPSHR

Theory bites are a collection of basic hydraulic theory and will touch upon pump design and other areas of pump industry knowledge.

Inducers are used in the event of the danger of cavitation. They increase the pressure in the inlet area of the impeller.

An inducer is the axial inlet portion (Axial Impeller, propeller) of a centrifugal pump, the function of which is to raise the inlet head by an amount sufficient to prevent significant cavitation in the following pump stage.

It is located immediately upstream of the pump impeller, before the first stage in Multistage Pumps.

It is used in applications in which the inlet pressure of a pump is close to the vapor pressure of the pumped liquid. The inducer’s role is to reduce the NPSHR. This is achieved by increasing the static pressure upstream of the impeller.

One of the things to take into account when using an inducer is that it reduces the operating range.

For more details check out, Cavitation and The Centrifugal Pump: A Guide For Pump Users (Edward Grist).

Read more Theory Bites!

Related Articles

Related Whitepapers

Five Reasons To Choose A Bearingless Torque Sensor

Benefits that improve your torque measurements Best real-world accuracy Highest Overload Highest Overrange

Advanced Sealing and Condition Monitoring Strategies In Water and Wastewater Plants

Introduction As a plant/maintenance manager or reliability engineer for a water or wastewater facility, you want to know about the best technologies to help your…

Downthrust Measurement in Vertical Pumps Prevents Failure: The Benefits of Measuring Axial Force in Real-Time

“Himmelstein’s Thrustmeter has proven to be accurate and repeatable, which are two of the main things that define quality in an instrument. It’s been a…

Electricity, Power, and Emissions: Using Motor Power Data to Create a Climate-Informed Maintenance Plan

Take Action Today To Make Your Pumps More Efficient Pump motor power levels and energy consumption provide valuable input about the status of and changes…

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *