Self-priming pumps are centrifugal pumps that automatically remove air from the suction line and start pumping without priming. Their design includes a special chamber and an impeller to create a vacuum and ensure that the liquid is supplied from the lower level.
How it works:
When the pump starts, it draws in air along with the remaining liquid in the casing, mixes them, creates a vacuum and initiates the liquid to rise to the impeller.
Main functions
- Self-priming: start without pre-filling
- Pumping: water, wastewater, liquids with particles
- Drainage: drainage of tanks, trenches, flooded areas
- Flexibility: operation in case of fluid supply interruptions
These pumps comply with common performance and safety standards, ensuring reliability and versatility in use.
Areas of application
- Agriculture: irrigation, pumping from canals
- Construction: pumping water from pits and basements
- Industry: transport of wastewater, chemical mixtures, sludge
- Utilities: cleaning of tanks, drainage of rainwater
- Household: work with pools, ponds, flooded areas
- Shipbuilding: hold drainage, ballast water pumping
Design features
- Self-priming: up to 7-8 m without external devices
- Versatility: work with different types of liquids
- Easy to launch: built-in chamber stores liquid for a quick start
- Materials: cast iron, stainless steel, plastic
- Productivity: tens to hundreds of litres per minute
- Maintenance: easy cleaning of the impeller through the removable cover
- Mobility: compact models for portable use
How do I choose a self-priming pump?
- Type of liquid:
- Clean water
- Wastewater, sand, fibres, impurities
- Suction height:
Determine the vertical distance from the fluid source to the pump - Productivity:
Required flow rate (l/min) and head (m) according to the application - Type of impeller:
- Open wheel for dirty liquids
- Closed wheel - for clean environments
- Materials:
- Stainless steel - for aggressive or chemically active liquids
- Cast iron - for typical operating conditions
- Additional options:
- protection against dry running
- built-in shredders
- speed control
