Progressive Cavity Dosing Pumps

A dosing pump, otherwise known as a metering pump, is designed to very precisely deliver a specific quanitity of fluid to a container, tank or fluid stream at controlled intervals.

Dosing pumps are able to provide precise metering through their smooth, pulsation free operation and ability to achieve extremely low flow rates whilst maintaining accuracy.

Thanks to their accuracy at low flow rates and smooth pumping, peristaltic pumps, progressive cavity pumps and diaphragm pumps and lobe pumps are most commonly used in dosing systems.

Metering pumps are typically used to accurately delivery ingredients, additives and chemicals in food, process and water treatment industries.

It consists of a spiralled helical rotor (like a cork screw) that sits tightly inside a rubber stator/sleeve. As the rotor turns inside the stator, it forms a set of fixed-shaped cavities that progress along the length of the stator and force the fluid inside to move along with them as they turn.

Their pressure capabilities and viscosity handling is unrivalled, which means that whilst they are quite expensive in design and large in footprint, they are often selected for applications when all other pumping technologies will fail.

No! Even short period of dry running can result in damage to the rotor and stator, making dry run protection a must if there is risk of this.

It consists of a spiralled helical rotor (like a cork screw) that sits tightly inside a rubber stator/sleeve. As the rotor turns inside the stator, it forms a set of fixed-shaped cavities that progress along the length of the stator and force the fluid inside to move along with them as they turn.

The design is best suited to highly viscous and lubricating fluids including oils, sludges, waste matter, biomass, pastes and grape pressing that may contain very large solids, as well as pumping viscous products over long distances.