. . . submersible pumps

submersible pumps

Submersible pumps are the waste water and sewage handling workhorse. These pumps come in a number of configurations to service the different type of applications.


• vortex for dewatering / drainage of clean water;
• semi-vortex for drainage of stormwater or brackish water source;
• cutter used where soft solids, loose or short stringy material is present; or
• grinder for wastewater and sewage material containing solids and larger fibrious material.

The aplications for submersible pumps include:
• drainage
  is handled by the vortex submersible pump - characterised by a strainer to filter out the large flotsam or lumpy material in the water.
• stormwater
  typically has some organic matter like leaves, and suspended solids like clay particals that remain in the water and need to be pumped away. The stormwater configuration has the ability to move the turbid water through a large throughlet in the intake area of the pump. The impellor in the stormwater submersible is a semi vortex so that the pumping action acts like a washing machine and does not restrict small suspended fibrous matter in the drainage water from being pumped away;
• sewage
  submersible pumps have a number of configurations for particular applications:
  cutter pump have an embeded tungsten tooth in the leading edge of a single vane impellor as a cutting blade and a perforated cutting plate. A large horsepower motor is used to drive the cutting action that reduces soft solids before being pumped away.
  grinder pump will shred fibrous matter and other flexible material into small pieces to allow it to be pumped away. The grinder is typically a larger motor to provide the power to grind the worst types of inclusions in the sewage system.
  positive displacement pump will send waste material a greater distance as well as break up some of the solid waste by using a type of rotating spiral impellor or a piston action.
  masarator pump pulverises waste material to fine particals that can be discharged down the pipeline. This pump usually is a centrifugal pump sitting out of the waste tank and has a tapered inlet to aid in the pulverisation of the waste. Its use is being limited by consideration of cost, convenience and the availability of cutter and grinder type pumps.
• circulating
  pumps may be used for mixing, aeration or moving water through an enclosed system, possibly requiring continuous operation.