When a process combines high pressure, aggressive corrosion and leakage risk, a hydraulic diaphragm metering pump is often the better choice. Its hydraulic drive maintains a high discharge pressure while the diaphragm isolates the medium from the moving parts.

Reliable metering pump operation depends on routine inspection and correct maintenance. Abnormal flow, pressure fluctuation or leakage can usually be traced quickly through a few common checks.

A complete dosing system is not simply a pump and a tank placed together. Confirming the process and site conditions before delivery reduces on-site modification and commissioning time.

Metering pump selection is not only about flow rate. Pressure, media corrosiveness, temperature, duty cycle and on-site control requirements all affect the pump type, wetted materials and sealing design. This article sets out the selection process along four key dimensions.

Wastewater dosing systems demand high dosing accuracy and stable operation. Digital metering pumps let operators set values on screen and see real-time feedback, giving a clearer picture of the dosing status.