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Lev Nelik

An example of pumping unit efficiency trend monitoring.
Pumps
Learn to Repair Pumps Properly
Pumping Prescriptions
Lev Nelik
Pumps
Pump Hydraulics Fundamentals: A Student’s View, Part 2
What would happen if the pump was selected not based on an incorrect system where these components were not accounted for?
Lev Nelik
Pumps
Pump Hydraulics Fundamentals: A Student’s View
Columnist Lev Nelik discusses the basics of pump hydraulics with a reader.
Sequence of what happens as a result of low flow
Pumps
Suction Parameters Relating to NPSH Issues
Columnist Lev Nelik responds to a reader question about suction specific speed.
Lev Nelik
Pumps
How Much You Pay When a Pump Operates at Off-Peak Conditions
Pumping Prescriptions

Diagram
Pumps
Determining Static Component of System Curves
Lev Nelik responds to readers' questions related to system curves and boiler feed systems.
Pumps
Proper Gauge Positioning
Lev Nelik responds to readers' questions about calculating and estimating pipe velocity
Gauge Correction & Velocity Head Correction Can Matter
Pumps
Gauge Correction & Velocity Head Correction Can Matter
Lev Nelik responds to readers' questions about calculating and estimating pipe velocity
Calculating vs. Estimating Pipe Velocity
Pumps
Calculating vs. Estimating Pipe Velocity
Columnist Lev Nelik says it is important to know when you can use a shortcut, and when to go the long way.
Readers Respond to ‘A Step-by-Step Approach to Pump Selection’
Pumps
Readers Respond to ‘A Step-by-Step Approach to Pump Selection’
Lev Nelik explains calculations from the Moody diagram.
Pumps
A Step-by-Step Approach to Pump Selection
Consider pipe sizing and motor power requirements before picking your pump.

Bearings
Pumps & Systems Looks Back: Pump Design Changes Improve Lubrication
Quantifying the benefits of modifications.
Energy Efficiency for River in the Desert
Pumps
Energy Efficiency for River in the Desert
Lev Nelik answers reader's question about an Israeli infrastructure water project.
Developing Water Infrastructure Project in Israel
Piping
Developing Water Infrastructure Project in Israel
Choosing fresh water or salt water for a man-made river
Pumps
Middle East: What’s New with Water Pumping Challenges in Israel?
Lev Nelik explains water distribution developments in Israel.
Valves
Pumps-to-System Control of Power Plant Boiler Feed Pumps
Dr. Nelik and other experts make recommendations for an engineer in a Middle Eastern plant.
Seals
Seal Damage Due to Loads
Casing changes cause efficiency effects.

Pumps
Seals: Skinny Shaft Design or Improper Operation?
Pumping Prescriptions
Various Ways to Determine Pump Flow in the Field
Pumps
Various Ways to Determine Pump Flow in the Field
Pumping Prescriptions
Pumps
Letter from a Reader
Pumping Prescriptions
Failure Prediction with Online Monitoring
Pumps
Failure Prediction with Online Monitoring
Pumping Prescriptions
Pumps Field Efficiency Testing Automation
Pumps
Pumps Field Efficiency Testing Automation
Pumping Prescriptions

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How is COVID-19 affecting the industry?

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Trending

Motors
Upgrading Domestic Water Booster Stations Results in Energy Savings
Determining actual water flow and installing a VFD can maximize stations used in high-rise buildings.
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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.
Pumps
Podcast: Machine Health Monitoring in a COVID-19 World
ITT's Akshat Sharma gives latest industry trends related to this topic.
Pump Industry Insider
M&A Activity Review for 2020
State of the Industry 2021

From Our Partners

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

Sponsored by

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.

Sponsored by

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.

Sponsored by

Greene Tweed
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