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Centrifugal Pumps Diaphram Pumps
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Pumps - Dewatering Pumps

There are many types of dewatering pumps available. Generally, there are four types of pumps, such as submersible pumps, centrifugal pumps, trash pumps, and diaphram pumps, that can remove water from a given area.

Submersible Pumps are ideal for removing water from confined areas. A compact design and high performance enables these pumps to get the jobe done where other pumps fall short.

Centrifugal Pumps are designed to handle all types of clear water applications. Ideally used for construction, municipal, agricultural and residential applications .

Trash Pumps are built to meet the requirements of the professional contractor. Trash pumps are used to dewater with high solid contents, such as leaves, sticks, and stones which easily pass through the pump.

Diaphram Pumps deliver dependendable performance and low maintenance. Ideal for slow seepage applications where a centrifugal pump would ordinarily lose its prime. Diaphram pumps are perfect for muddy water, sludge or any water with a high percentage of solids.

Dewatering pumps are commonly expected to suck water out of a trench, unfortunatley that would be an incorrect expectation. Water will always take the path of least resistance; the dewatering pump provides the water with that path. Although there are two main designs of dewatering pumps, they both serve the same purpose; to move water from one point to another.

The first design of dewatering pumps is the centrifugal design. This type uses a rotating impeller to draw water into the pump and pressurize the discharge flow. Common types of centrifugal pumps are the trash, standard and submersible pumps. The trash pump was given its name because of its ability to handle large amounts of debris. Generally the trash pump can handle spherical solids up to the diameter of the suction inlet. The standard centrifugal pump is a good choice of common dewatering situations. The standard centrifugal pump is best used in clear water applications with limited solid handling capability. Typically the standard centrifugal pump can only handle spherical solids the diameter of the suction inlet. The last type of centrifugal dewatering pump is the submersible pump, their compact design make them ideal for wells and jobs with limited space. True to its name, the submersible pump can be placed right into the water that it is pumping. The pump motors use a vertical shaft to turn the impeller and generate the velocity needed to create the discharge pressure.

Water flows in through the bottom and is discharged out the top of the pump casing.

The second design of dewatering pumps is the positive displacement design. These pumps deliver a fixed amount of flow per cycle through the mechanical contraction and expansion of a flexible diaphragm. The common positive displacement pump is the diaphragm. The diaphragm pump uses drive shaft to turn an offset connecting rod that is coupled to a flexible diaphragm. The connecting rod alternately rises (expands) and lowers (contracts) the diaphragm at a rate of 60 RPM. The diaphragm pump has the ability to handle air without losing its prime and it can also handle solids greater then 25% by volume. Because the diaphragm pump has no impeller or volute they do not run the risk of being damaged if they are run dry for a long period of time.

GCIron carries many Multiquip options to all the verities dewatering pumps. GCIron provides trash pump sizes 2 to 6-inch range producing flows from 200 to 1,600 GPM and heads up to 150-feet, standard centrifugal pumps sizes 2 to 4-inch range with flows from 142 to 500 gallons per minute (GPM) and heads in the range of 90 to 115 feet, and submersible pump sizes 2 to 6-inches producing flows ranging from 45 to 790 GPM and heads up to 138 feet. GCIron also carries an extensive assortment of diaphragm pumps ranging from 2 and 3-inch gasoline-powered models producing flows in the range of 50 to 85 GPM. Visit GCIon.com to check out the wide range of dewatering pumps, and numerous other machines and equipment to make your next job easier.

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