Flooded Suction Pumps

What is a flooded suction pump?

A pump that uses a suctioned chamber that is continuously filled with liquid. It’s similar to a submersible pump in that it sits beneath the water and pumps from below. However, flooded suction pumps typically use different types of pumping mechanisms than submersible pumps.

How do they work?

Flooded suction pumps are easier and quicker to turn on and off because the chamber and piping inside of the pump are always filled with water – eliminating the priming step from the process. This can also be a disadvantage since there’s no way to completely block off the suction within the pumping chamber, unless there's a seperate suction valve. Without this valve, it makes it difficult to uninstall or service the pump, because you first have to drain all the water from the system.

Where are they used?

Because the self priming mechanisms of the pump make it possible to deliver water almost instantaneously, flooded suction pumps are useful in industrial applications where there must be no delay after a water feed is switched on. They’re also used in firefighting, and to prevent flooding in large swimming pools.

Other related Pump Types include: water pumpsewage pump, wastewater pump, submersible water pump.

Expert Advice

Author explains the reasons why it's important to determine the right pump type and size when evaluating a pump for a slurry application.

J. Hamilton Wright shows us some of the benefits that self-priming, centrifugal pumps can offer in industrial plants.

Article explains three common pump problems - including cavitation, air entrainment and recirculation - and provides tips on how to fix them.

Read All

Industry Updates

Switch to: Expert Advice | Pump Tweets

The McIvaine Pumps World Market report projects that pump purchases by the power industry will reach nearly $3.5 billion this year. The forecast puts the bulk of those purchases in East Asia, followed by West Asia and Western Europe.

Mass Megawatts Wind Power, Inc. announced the successful delivery and operation of a larger wind-powered, water pump system in Colorado.

Grundfos recently celebrated the opening of a new "competency center" in Aurora, outside of Chicago. It's company's first U.S. production facility dedicated exclusively to the municipal waste water market.

Read All

Pump Tweets

Colfax introduces an online energy savings calculator for oil and gas industry pump applications. The calculator allows head-to-head comparisons between centrifugal pumps and rotary positive displacement pumps in both single and multiple pump applications. Check it out at the Colfax website.

Chilean pump manufacturer Neptuno Pumps has been awarded a contract to supply a dozen vertical turbine pumps for a reclaim water system project at a copper mine in Chile.

KSB introduces immersion variant of high-pressure pump. The new pump, called Movitec VCl, is a vertical, multistage centrifugal pump that can be used for handling coolants, condensate and lubricants for machine tools. The pump has a max flow rate of 27 m3/hr and the maximum discharge head is 250 m.

Read All