Knowledge Center
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Latest Articles & Guides
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Pump Selection Guides
Food and Hygienic Process Pumps: Hygienic Design, CIP and Materials
How do you select a pump for food and hygienic process duty? The three zones of EN 1672-2, the Ra 0.8 µm…
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Pump Selection Guides
Selecting Pumps, Blowers and Dosing Equipment for Wastewater Treatment Plants
How do you select pumps, blowers and dosing equipment for a wastewater treatment plant? Stage by stage against EN 12255: raw sewage…
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Pump Selection Guides
Centrifugal Pump Impellers: Open, Semi-Open and Closed Selection
How do you select a centrifugal pump impeller? The construction of open, semi-open and closed impellers, the solids-versus-efficiency trade-off, how clearance and…
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Pump Engineering
Pump Sizing: Total Dynamic Head, System Curve and Pipe Friction Loss
How do you size a pump? The components of total dynamic head, friction loss with Darcy–Weisbach, a fully worked example, system curve…
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Pump Selection Guides
Pump and Blower Selection for Explosive Atmospheres: Reading the ATEX Marking
How do you select pumps and blowers for explosive atmospheres? Reading the ATEX marking line by line, matching zone to category, gas…
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Pump Engineering
Pump Failures and Maintenance: Vibration, Alignment and Bearing Life
How do you diagnose pump failures? The three readings to take before opening the pump, ISO 20816 vibration evaluation, how misalignment cuts…
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Pump Selection Guides
Hot Oil Pump Selection: Circulation, Transfer and Temperature Limits
How do you select a hot oil pump? The difference between circulation and transfer duty, film versus bulk temperature, the 200 °C…
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Pump Selection Guides
Blower Selection: Roots (Lobe), Side Channel and Multistage Compared
How do you select a blower? The difference between lobe (Roots) and side channel blowers, the m³/h versus Nm³/h trap, the pressure…
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Pump Engineering
NPSH and Cavitation: Pump Suction Line Design (With Calculated Examples)
What are NPSHa and NPSHr, and how are they calculated? The effect of temperature and elevation on suction capacity, the safe NPSH…
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Pump Selection Guides
Viscous Fluid Transfer: How to Choose Between Gear, Lobe, and Monopump Pumps?
Why do centrifugal pumps fail to perform adequately with dense and viscous liquids? Viscosity limits for internal gear, helical gear, lobe, and…
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Pump Engineering
Pump Material Selection: PP, PVDF, PTFE, and 316L Chemical Compatibility Guide
How is material selection made for chemical pumps? Temperature limits, compatibility charts, and the most common selection errors for PP, PVDF, PTFE,…
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Pump Selection Guides
Selecting a Pool Pump: Calculating Circulation Time, Flow Rate, and Filter Compatibility
How to Choose a Pool Pump? A guide with example calculations covering flow rate based on runtime, total delivery head (TDH), filter…
