Precision Metering Pump

A precision metering pump is a critical component within an Automated Beverage Ingredient Dispensing System, responsible for accurately measuring and transferring specific quantities of liquid additives, flavorings, syrups, or concentrates into the beverage production stream. It ensures consistent product quality, recipe accuracy, and minimizes waste by providing high volumetric accuracy and repeatability. The pump operates on a positive displacement principle, using mechanisms such as pistons, diaphragms, or peristaltic action to draw a fixed volume of fluid into a chamber and then discharge it. The volume is controlled by adjusting the stroke length, stroke frequency, or both, often governed by a programmable logic controller (PLC) integrated with the parent dispensing system. This allows for precise dosing in batch or continuous processes, accommodating varying production demands. The pump is designed for hygienic applications, with wetted parts available in materials such as 316L stainless steel, food-grade PTFE, ceramic, and food-grade silicone, ensuring compatibility with food products and cleaning agents. Key performance parameters include a flow rate accuracy of ±0.5%, a maximum flow rate of 1000 L/hr, and a maximum discharge pressure of 1.6 bar. The operating temperature range is -10 to 85 °C, and the pump can handle fluids with viscosities from 1 to 1000 mPa·s, though higher viscosities may reduce accuracy. The power supply is 24 V DC (±10%) with an optional 110/230 V AC, and power consumption is 120 W at maximum flow and pressure. The pump has an ingress protection rating of IP65 (per IEC 60529), making it dust-tight and protected against water jets. Physical characteristics include an approximate weight of 15 kg and dimensions of 400×250×300 mm (L×W×H) with flange connections. These values are reference ranges for directory purposes; actual specifications must be confirmed with the manufacturer for specific models and applications. The pump is intended for integration into larger systems, and its performance depends on proper installation, calibration, and maintenance.

The pump uses a positive displacement mechanism, such as a piston, diaphragm, or peristaltic action, to draw a fixed volume of fluid into a chamber and then discharge it. The volume is controlled by adjusting the stroke length, stroke frequency, or both, often governed by a programmable logic controller (PLC) integrated with the parent dispensing system. This allows for precise dosing in batch or continuous processes, accommodating varying production demands.