Are you choosing the perfect construction water pump? You may be surprised at the number of factors to consider. Choosing the wrong pump can hinder the dewatering process, cause project delays, and end with unexpected expenses.
At Key Services, we offer many different types of construction water pumps. Our experts share eight key things to look for when choosing a construction water pump for your needs.
You need to consider the pump sized properly for the project you have in mind. For example, submersible pumps are usually compact and lightweight. Meanwhile, centrifugal trash pumps are large and heavy. Improperly sized pumps usually suffer from broken shafts, dislodged seals and overheating.
2) Filtering Capacity
Depending on the construction site you are working on, you need to choose a pump that can deal with the debris. Standard fuel pumps work with mostly clean water. As soon as large debris appear, the pipes get clogged. That’s why for contaminated water, you need to use semi-trash or trash pumps.
3) Suction Lift
Again, you need to evaluate your construction site. The lift parameter of a pump shows how far the unit can project the water from the excavation site. If the site is deep, you need a high lift pump. While the average pump has a lift of about 25 metres, the high lift pumps can project the water as far as 60 metres.
4) Durable Impellers
If the pump is about to deal with abrasive materials, such as sand and gravel, it needs durable impellers. Such impellers should be made of cast iron. If the impellers you have chosen are made of polyurethane, they will wear out quickly.
5) High-Quality Materials
In order to withstand harsh conditions, the pump needs to be made of high-quality materials. For example, seals are the weakest spots in each pump. Ideally, the pump seals should be made of stainless steel. Double mechanical seals offer better water tightness. Meanwhile, rubber seals wear out quickly and need to be replaced often.
6) Overheat Shut Off Mechanism
If your pump is about to work long hours, overheating may be unavoidable. Overheating may lead to downtime and costly repairs. Some pumps are equipped with a special mechanism that turns the equipment off or reduces power once it starts overheating. Then, when the motor cools, the pump is restarted automatically.
7) Float Mechanism
If you are looking for a submersible pump which you are planning to leave unattended, you need a float mechanism. It will automatically turn the pump off whenever the water level is too low and restart it when the level increases again. This can help you avoid motor breakdown and seal damage.
8) Respectable Manufacturer
Paying attention to the manufacturer’s reputation can help you make the right choice. Pumps that are made in China and elsewhere in the Far East may be cheap, but their integrity is questionable. Choosing a respectable UK or European manufacturer can help you find a high-quality pump. However, some popular brands may charge a high price. We would recommend consulting a pump expert before making a decision.
If you would like to hear an expert’s opinion about choosing the right pump, please give us a call. For more information about water pumps, please click here to download our free e-book: The Buyer’s Guide to Water Pumps.