One of the main disadvantages of standard solids handling pumps is that there is a nominal solids passing diameter. The pumps, depending on their size, can only pass solids that are smaller than the intake of the volute and piping. If a larger solid tries to pass, it can potentially block the pump. Another problem with solids handling pumps is that they are dependent on the force main size and its ability to pass the …
What are the differences between a grinder pump and a chopper pump?
Grinder pumps and chopper pumps both macerate solids before the water flows through the pump, but they accomplish the task differently. Grinder pumps grind up the solids into slurry in order to pump the liquid. Chopper pumps combine a solids handling throughlet with fixed cutting blades that chop up the solids that cannot pass through. Grinder pumps are typically used in low flow scenarios with high total dynamic head, TDH, where the peak flow rate …
What are the advantages of surface mounted pumps?
Surface mounted pumps have a few advantages. The main advantage is the fact that they are not under water. In industrial applications, there can be harsh materials that can quickly corrode and damage the pumps. Submersible pumps in this situation must be stainless steel, which can dramatically increase the price. Even with stainless steel pumps, it is difficult to find a model that can completely combat the corrosive nature of the conditions. Surface mounted pumps …
What are the advantages of multiple pumps in a pump station?
One advantage is having redundancy within the system. If one pump malfunctions, there is a back-up to keep the system operational. Another advantage to having multiple pumps is the ability to cycle the operation of each pump to reduce wear and allow for maintenance to be conducted during off periods. For cost saving measures, larger pumps can sometimes be replaced with multiple smaller pumps to handle the same amount of flow. This is not always …
What are the advantages of having redundant pumps in a lift station?
Romtec Utilities designs package lift stations with a redundant pump whenever possible. This is because there are several advantages to this type of design. The principal advantage is that if one pump goes offline then the redundant pump can kick on to handle the peak flow of the system. For example, in a duplex system (2 pumps) each pump is capable of pumping the peak flow on its own, hence the redundancy. Another strong advantage …