Surface mounted pumps present disadvantages when designed into a lift station. The main disadvantage is that the pumps are at grade, making them visible, unprotected, and un-muffled. Depending on the location of the site, the visibility and noise the pumps create could become a big issue. If the lift station was designed to service a large subdivision, the nearby houses could be affected by the noise of the pumps and/or generator starting up and running, …
What are the disadvantages of solids handling pumps?
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 sealed and non-sealed plug valves?
Sealed and non-sealed plug valves each accomplish the same function in the system, but site layout and price can determine which type is used in the design. Site layout determines whether a valve vault is even a possibility. Valve vaults take up space, and some project sites do not allow for much construction outside the wet well. When a valve vault is not feasible, plug valves are located in the ground outside of the wet …
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 …