A sodium hypochlorite metering pump must be selected for more than flow and pressure. Bleach and other off-gassing treatment chemicals can release gas in the liquid end, interfere with check-valve performance, and cause loss of prime even while the motor or solenoid continues to stroke. The result is usually seen …
Metering pump accessories determine whether the installed chemical feed system can verify output, protect against overpressure, control siphoning, reduce pressure spikes, and inject chemical into the process stream correctly. A metering pump may be sized correctly and still deliver poor results if the accessory package does not match the hydraulic …
Metering pump chemical compatibility starts with the liquid end, but the review cannot stop at the pump head. The diaphragm, check valves, seats, seals, tubing, calibration column, relief path, back-pressure valve, and injection assembly all contact the chemical. Any one of those components can become a weak point. A metering …
Treatment chemical feed systems need enough capacity for peak demand, but how to size a metering pump correctly depends just as much on the normal and minimum feed points. A pump selected only for the highest possible treatment condition may be too large for daily operation. A pump selected too …
Pump selection should begin before the quote request. A pump recommendation is only as accurate as the application data behind it, and missing information can lead to the wrong pump type, incorrect materials, poor flow performance, premature wear, or higher operating cost. AODD and centrifugal pumps are both widely used …
Centrifugal pump efficiency matters most when the application involves clean, low-viscosity liquid, steady flow demand, and long operating hours. In those conditions, a properly selected centrifugal pump can often provide lower operating cost than an air-operated double-diaphragm pump. AODD pumps are valuable in difficult services involving viscosity, solids, abrasion, suction …
Dry run exposure, deadhead conditions, and suction lift are common causes of pump reliability problems in industrial fluid-handling systems. These conditions often occur when tank levels change, operators close valves, suction lines lose prime, or the process runs intermittently instead of continuously. Pump failures in these applications are not always …
Viscosity changes how a pump performs. A fluid that moves easily through a process water line may require a different pump design when the same system is handling resin, adhesive, sludge, concentrate, coating material, or another high-viscosity product. AODD pumps and centrifugal pumps can both be used in industrial fluid …
AODD and centrifugal pumps serve different roles in industrial fluid-handling systems. Selecting the appropriate pump requires evaluating fluid viscosity, solids content, required flow, suction conditions, duty cycle, available utilities, and maintenance requirements. AODD pumps are commonly used for viscous, abrasive, solids-laden, or shear-sensitive fluids and applications with variable operating conditions. …
This infographic explains why sodium hypochlorite requires more careful pump and system design than neutral process water. It shows how corrosion, gas formation, cavitation, and concentration changes affect dosing reliability.
