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HI Pump FAQs

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Pumps
Considerations for Wastewater Pumps
Hydraulic Institute on examining altitude, temperature and more when selecting a wastewater pump.
wastewater facility
Pumps
What Is the Definition of Wastewater?
Hydraulic Institute explains what is included in the term wastewater.
HI FAQ
Pumps
13 Tasks for Completing a Pump System Assessment
It is advised that a certified PSAP perform the pump system assessment.
Slider crank assembly
Pumps
Pump Vibration Driven By Engines
See how this compares to energy driven by electric motors.
HI PUMP FAQ
Bearings
Water Contamination in Bearing Lubrication
By the time water becomes visible in oil, damage is already occurring.

hi faq
Pumps
Why Does Water Hammer Happen?
This event is caused by shutting off pipes quickly.
rotor stator
Bearings
Keep Bearings Free From Contaminants
When properly specified, bearing housing lubrication quality-enhancing components can be effective in preventing contamination.
hi faq
Pumps
How to Mitigate Pump Motor Damage
One option is to use a reduced-voltage soft starter
HI Pump FAQs
Pumps
What Pump Selection Considerations Are Needed To Handle Wastewater?
The type of material in the fluid should be considered when selecting a proper pump for wastewater treatment.
hi pump faqs
Pumps
Ensure There Is Enough Torque To Start a Positive Displacement Pump
There are two main concerns regarding the torque required to start a PD pump.
HI Pie Chart
Pumps
Should You Buy More Efficient or Less Expensive Pumps?
The initial purchase and installation cost of a new pumping system is a small portion of the life cycle cost of the pump.

hi pump faq
Pumps
What Common Problems Cause Excess Pump System Vibration?
Some causes for these forced vibrations are misalignment of the pump and driver shaft.
hi pump faq
Pumps
Standard Method for Testing Rotodynamic Pump Efficiency
Uncertainty must be considered, as is the case with all tests.
HI PUMP FAQ
Pumps
What Factors Affect Pump Efficiency?
There is an optimal specific speed to reach maximum attainable efficiency that may vary depending on the pump design.
hi pump faqs
Pumps
Combustion Engine Drivers in Pump Applications
HI Pump FAQs
HI Pump FAQs
Rotary Pumps
Temperature Measurements for Condition Monitoring
Motor insulation deteriorates faster at higher temperatures
hi pump faqs
Pumps
How do Throttling Valves Affect the System Curve?
These are manually set and do not react to pump and system changes.

pump system curve
Pumps
How Discharge Piping Affects Pump Performance
In some cases, sudden valve closures can cause high pressure spikes.
HI Pump FAQs
Pumps
Monitoring Bearing Wear in Sealless Pumps
These bearings are located within a containment shell with no shaft exposed to atmosphere
HI Pump FAQs
Mechanical Seals
Calculate the Leakage Rate of a Mechanical Seal
A liquid-lubricated seal may have no visible leakage.
HI Pump FAQs
Pumps
Converting to Pumps With Mechanical Seals in Chemical Processing
There has been an effort to upgrade pumps originally designed for packing to accommodate mechanical seals.
HI Pump FAQs
Pumps
Coatings for Corrosion Resistance & Efficiency
Can coatings be applied to increase the efficiency of a pump?

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How is COVID-19 affecting the industry?

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View our digital edition here.

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SEPCO CEO Chris Wilder on Pandemic Response, State of the Industry
Company focused on contactless connections to deal with safety precautions.
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Podcast: Machine Health Monitoring in a COVID-19 World
ITT's Akshat Sharma gives latest industry trends related to this topic.

From Our Partners

A Modernized Approach to Wet Wells
How to eliminate wet well maintenance & premature wear of pumps.

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Industrial Flow Solutions
Centrifugal Pumps: The Condition Monitoring Comparison Guide
Find out which technologies work best to keep centrifugal pumps from causing downtime in critical industrial processes.

Sponsored by

Semiotic Labs
Water@Work: Emerging Technology & The 2020 Impact
Learn how early adopters are benefitting from emerging technology as well as the impact COVID-19 has had on water management.

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Sealevel Systems, Inc.
Extend Bearing Life for Pumps
A NSK Case Study

Sponsored by

NSK
Replacing Metallic Wear Components with Composites in Centrifugal Pumps
Learn the basics of wear components and their role in system operation in this white paper.

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