How to Choose the Right Pump: Seven Questions to Answer First
Seven questions that decide which pump you need, and how to use the CNP Pump Finder to shortlist models from your flow and head.
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Pump Knowledge
How pumps work and how to choose them.
Variable-Frequency Pumps: How Constant-Pressure Systems Save Energy
How variable-speed pumps hold constant pressure and cut electricity use, where they pay back and what to check before you specify one.
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Metering (Dosing) Pumps: Diaphragm, Plunger or Electromagnetic?
How metering (dosing) pumps work and how to choose between mechanical diaphragm, hydraulic diaphragm, plunger and electromagnetic types.
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NPSH and Cavitation Explained: How to Protect Your Pump
What NPSH means, how cavitation damages pumps, and how to calculate your NPSH margin and fix suction problems.
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Stainless Steel vs Cast Iron Pumps: Which Is Right for Your Application?
Compare stainless steel and cast iron pumps on corrosion resistance, hygiene, cost and life, and learn which material suits water, chemicals and food duty.
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How to Read a Pump Curve: Duty Point, Efficiency and NPSH
Learn to read a centrifugal pump curve: find the duty point, check efficiency and power, and avoid the mistakes that lead to the wrong pump.
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Booster Pump Systems: How to Size One for a Building or Factory
A practical guide to sizing a booster pump set: peak flow, total head, number of pumps and the controls that keep pressure steady.
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Vertical Multistage Pumps Explained: How They Work and Where to Use Them
How a vertical multistage centrifugal pump builds pressure stage by stage, where it is used in Pakistan and what to check before you choose one.
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