Pumps
Romtec Utilities supplies pumps of virtually every type from the leading manufacturers. The specific pumps for a complete Romtec pump station depend on several factors, including: pump station type (submersible, wet-dry, vertical turbine), total dynamic head (TDH), pump performance, cost, customer preference and special functionality such as a chopper pump.
Submersible Pumps – Several types of submersible pumps are commonly used in wastewater pumping systems: solids-handling, non-clog pumps that pass 3-inch diameter solids; grinder pumps with impellers that grind solids; chopper pumps that macerate difficult solids such as rags.
Dry Pit Pumps – Since the pumps in a dry pit are not submerged, they can be non-sealed, air cooled pumps. It should be noted that submersible pumps may also be used in a dry pit, especially in sites that may be subject to occasional flooding.
Vertical Turbine Pumps – Three advantages of vertical turbine pumps are: 1) they are very efficient (80-85%), ideal for moving large volumes of water against high total dynamic head (TDH); 2) they can handle most liquid effluent or process wastewater from which solids and grit have been removed; 3) they operate above ground, so motor and pump head are easily accessible for maintenance. Note: Vertical turbine pumps are not designed for handling solids. Even moderate concentrations of grit can be damaging to some vertical turbine pumps. Solids must be separated from liquid effluent before reaching the vertical turbine pumps.
Pump Sizes – Romtec Utilities considers a number of factors in designing the pump size for a particular pump station. We offer pumps between 3 hp and 100 hp with discharge piping ranging from 2” to 12”. Some pump stations have pumps of two different sizes. The smaller pump handles small demand, and the larger pump(s) operates when the flow into the wet well or demand for water from the pump station is greater.