- Posted by The Rental Store
- On January 17, 2019
- Centrifugal Pumps, Dewatering, Machine Selection, Pumps
Centrifugal pumps keep work moving forward in wet site conditions
Keeping your jobsite dry is essential to keeping your project moving forward. A heavy storm can set a job back days or even weeks, and prolonged downtime can cost you a substantial amount of money.
All dewatering pumps move water, but each pump is different in design and application. No one pump is ideally suited for every situation.
Centrifugal pumps are the most commonly rented dewatering equipment. There are three types of centrifugal pumps—trash, standard, and high-pressure—each designed for specific conditions.
Trash centrifugal pumps handle large amounts of debris. The most common sizes are in the 2- to 6-inch diameter range producing flows from 200 to 1,600 gallons per minute and heads up to 150 feet.
These pumps generally handle spherical solids up to one-half the diameter of the suction inlet. Sticks, stones and debris flow through without clogging, making trash pumps ideal for the water conditions found on most jobsites.
Standard centrifugal pumps are an economical choice for general purpose dewatering. The most common sizes are 2- to 4-inch models with flows from 142 to 500 gallons per minute and heads from 90 to 115 feet.
The pumps should only be used in clear water applications as they have a limited solid-handling capability. The rule of thumb is the pump will only pass spherical solids one-quarter the diameter of the suction inlet.
High-pressure centrifugal pumps are designed for use in applications requiring high-discharge pressures and low flows such as washing equipment on your jobsite. Other uses are irrigation, water trailers, and emergency firefighting. High-pressure centrifugal pumps typically discharge around 145 gallons per minute and produce heads in excess of 300 feet.
While centrifugal pumps are the most commonly rented, a variety of other dewatering devices, such as diaphragm pumps (mud hogs) and submersible pumps, may be the best match for your specific needs. For more information on the options available to meet your dewatering needs, visit Petersonrents.com.