Engineering calculation, selection and supply

BESTFLOW GmbH supplies industrial pumps and spare parts for a wide range of process applications.

Calculation and selection take into account the properties of the pumped medium, the required flow rate, pressure, temperature and operating conditions.

We work with centrifugal, screw, piston, plunger, diaphragm and metering pumps.

Operating parameters, materials and design

BESTFLOW GmbH carries out engineering calculation and selection of pumping equipment based on the specified operating conditions.

Depending on the pump type and the task, manufacturers' calculation software, technical catalogues and data from existing installations are used.
Where necessary, technical solutions are additionally agreed with the manufacturer.

Selection takes into account flow rate, head, pressure differential, operating range, properties of the pumped medium, suction conditions, wetted-part materials, drive type and connection dimensions.
To assess suction conditions, in particular, the available net positive suction head (NPSH) and the requirements of the selected pump are considered.
When handling viscous, chemically aggressive or solids-containing liquids, the relevant medium properties and design limitations are taken into account.

Depending on the task, the following types of equipment are selected:

• Centrifugal pumps — single-stage and multistage, overhung and inline designs, as well as models developed in accordance with applicable API and ISO standards.
• Screw pumps — single-, twin- and three-screw designs for oils, fuels and other liquids, including those of increased viscosity.
• Piston and plunger pumps — for high-pressure systems and metering of process fluids.
• Diaphragm and metering pumps — for controlled delivery of chemical and other process fluids, taking their properties into account.

When replacing existing equipment, its technical specifications and compatibility with the installation are verified.
Spare parts availability, delivery times and technical documentation are clarified for each specific product.

On request, available technical documents can be provided, including drawings and material certificates, depending on the component type and delivery terms.