Metering pumps
Diaphragm and piston pumps
Our metering pumps (reciprocating positive displacement pumps) offer maximum metering accuracy and are the benchmark for safety, reliability and efficiency, especially when the conveyance of critical fluids is at stake. Within our selection, we offer both diaphragm and piston pumps.
Process pumps
High performance, high pressure, high reliability
The LEWA triplex, LEWA ecoflow and LEWA plunger pumps are the industry benchmark for reliable, durable and energy-efficient pumps in high-pressure process technology. All components are designed and optimized for the appropriate application.
Centrifugal pumps
Centrifugal pumps are designed for continuous, high-volume fluid transfer with smooth, pulsation-free flow. Using dynamic pressure generated by a rotating impeller, they are ideal for low- to medium-viscosity liquids across many industrial applications. They offer reliable performance, simple design, and energy-efficient operation for processes requiring steady flow rates.
Lobe pumps
Discover rotary lobe pumps for hygienic, gentle fluid handling across a wide range of applications. Ideal for food, pharma, and biotech industries.
Twin Screw pumps
Twin screw pumps handle low to high viscosities with precision, hygienic design and CIP capability for food and beverage industry.
Progressing Cavity pumps
Progressing Cavity pumps are suitable for high-viscosity media in demanding hygienic conveying and metering processes.
Internal gear pumps
Internal gear pumps for clean, medium- to high-viscosity food products, ideal for chocolate, molasses, sugar masses, and other industrial processing applications.
What types of pumps are there?
On the basis of their functional principle, pumps can be divided into two main groups.
- Flow pumps or centrifugal pumps are characterized by fluid mechanical processes. In these industrial pumps, the medium flows through the machine without any flaps or valves. Non-return flaps, valves or slides prevent the conveyed medium from flowing back again when the machine is at a standstill. Flow pumps are usually not self-priming. Axial pumps, diagonal pumps and radial pumps are some classic examples of this type of pump.
- Positive displacement pumps are usually self-priming. The medium is conveyed through a self-contained vacuum. Valves and flaps or the force of gravity prevent a back flow at a standstill. Diaphragm pumps or piston pumps belong to this type of industrial pump.
Why should the right pump be selected for every system?
Pumps are used in different applications in various industries. In most cases, liquid should be conveyed or dosed. To ensure reliable and smooth operation at all times, the relevant pump technology must be adapted to the prevailing framework conditions.
These include:
- (not only extreme) temperatures
- pressure conditions
- Properties of the liquid to be pumped (aggressive, corrosive or solid matter)
