Air lift pump

from Wikipedia, the free encyclopedia

Air lift pumps use fine air bubbles to raise water. They are used both in the aquarium hobby and in the creation of garden ponds .

Designs

A distinction is made between two types of construction: Czech air lift and air lift with membrane.

Czech airlift

The Czech air lifter, whose function is based on a surrounding pressure cell at the foot of the riser pipe, is widely used in the aquarium sector. The air from a membrane pump in the form of fine bubbles is brought in via this pressure cell . Usual circulation rates are in the range of several hundred liters of water per hour.

Air lift with membrane

Membrane construction is more often used in ponds because it is more effective with a large riser pipe and large amounts of water. In the lower area of ​​the air lift there is a funnel in which there is a plate aerator. The plate aerator consists of an EPDM membrane with thousands of small openings through which fine air bubbles flow into the riser pipe. The riser pipe usually has a length of 1.70 m to 2.00 m with a diameter of 160 mm. An optimal air lifter can pump more than 1000 liters of water per hour per watt.

Advantages of air lift pumps

  • efficient circulation
  • durable and robust
  • no rotating parts
  • wear-free
  • no power cord in the water

literature

  • DATZ: The aquarium and terrarium magazine , volumes 48 and 57, Alfred Kernen Verlag, 2004

Web links