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Selection guides, maintenance notes and application stories
ECO EFD Stepper Motor Dosing Pump: Specs, Turndown and How It Compares With Solenoid Models
The ECO EFD is a stepper motor dosing pump, not a solenoid pump. Here are the four EFD models, their adjustment range, accuracy and power, how they line up against NEWDOSE DFD-M solenoid models, and what changed in the newer Evodose literature.
How to Select a Metering Pump: Flow, Pressure and Materials
A practical guide to the three key factors in metering pump selection — flow rate, pressure and wetted materials — and when to choose solenoid vs mechanical diaphragm pumps.
Complete Daily Maintenance Guide for Metering Pumps
Daily checklists, wear-part replacement cycles and care tips to extend pump life and keep dosing accuracy.
How to Replace a Metering Pump Diaphragm
Step-by-step diaphragm replacement for solenoid and mechanical metering pumps, with common mistakes to avoid.
How to Calibrate an Online pH Analyzer and Troubleshoot Common Issues
Why regular calibration matters for online pH meters, the standard two-point calibration procedure, and fixes for drifting or slow readings.
Common Metering Pump Faults and Fixes
No flow, insufficient output, noise or leaks — causes and quick fixes for ten common metering pump faults.
Online Residual Chlorine Monitoring: Key Points
Constant-pressure vs reagent-based chlorine analyzers: differences, sampling requirements and selection tips.
Automating Chemical Dosing in Wastewater Treatment Plants
By interlocking metering pumps with online water quality analyzers, plants can achieve closed-loop dosing of PAC and sodium hypochlorite — lower chemical costs and stable effluent.
Online Turbidity Monitoring in Water Treatment
Turbidity analyzer principles, range selection and typical applications in plant water, membrane protection and effluent monitoring.
Conductivity Monitoring for Cooling Water Cycles
Calculate cycles of concentration from online conductivity and interlock blowdown with dosing to save water and chemicals.
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