Case Studies

Energy and Cost-Savings Examples

Energy and cost-savings potential varies considerably by each site based on the current condition of equipment, operating hours, applied improvements, and the available utility incentives. The table below shows some selected examples of implemented projects in the irrigation and water/wastewater segments related to pumping systems efficiency improvements.

Qualified Pump Service Companies in Your Area

There are many qualified pump service companies in your area. Lincus can help you determine which one is best to provide the services you need. These companies can provide pump tests, and repair and installation services. As an example, shown below is a list of qualified pump service companies in Arizona:


      Pumps by Type and Sizes

      Pumps are among the most widely manufactured items in the world and their many designs permit their use in a variety of applications. As a result, there are many pump types and sizes that can range from below 1 HP (such as medical infusion pumps), to over 5,000 HP (for diesel engine driven water pumps). They are utilized in everything from washing machines, refrigerators, cars and trucks, construction sites, wastewater treatment facilities, food-processing plants, irrigation, and water damns. While there are many different pumps for their vast application, the two general types of water pumps are centrifugal and positive displacement.

      “Centrifugal Pump” is the general name for impeller-type pumps in volute or diffuser type casings. These can pump all sorts of liquids, with and without solids, and can handle the highest flow rates. It’s recommended to keep liquids air- and vapor-free for centrifugal pumps to avoid impeller damage. These pumps are best for lower viscosity liquids and high flow rates. Sizes can be found from 0.125 – 5,000 HP, pumping 5 – 200,000 GPM at 10 – 7,500 ft of head. The following table includes a list of centrifugal type pumps and the specifications within which they can be found:


      Please contact us for more information of the advantages, disadvantages, and application of each pump type.
      “Positive Displacement” pump is general name for pumps that do not have impellers, but instead rely on the change of volume to move liquids forward using rotating or reciprocating parts. The change in volume provides either a positive pressure or a vacuum for liquids to flow. Positive Displacement pumps may be favored over Centrifugal Pumps due to their ability to handle higher viscosity fluids, presence of fragile or shear sensitive solids, or low flow and high pressure. Sizes can be found from 0.5 – 5,000 HP, pumping 0.1 – 15,000 GPM at 10 – 100,000 psi of head. The following table includes a list of Positive Displacement type pumps and the specifications within which they can be found:

      Pump Manufacturers and Distributors

      When looking for the right pump to match your application, there are many parameters to take into account. Contact us to discuss the type of pump you need, and we can provide you up with the correct pump manufacturer in your area.An example of agricultural pump manufacturers are provided below:

      Alfa-Laval manufactures sanitary pumps, including the renowned Tri-Clover brand, for the dairy, food, beverage, pharmaceutical, and personal care industries.

      Pump types available for selection – Single, multistage, and self-priming centrifugal pumps.

      American Turbine Pump manufactures a broad range of vertical and submersible turbine pumps for the irrigation, industrial, municipal, commercial, mining, and golf course pumping markets.

      Pump types available: Vertical and submersible turbines

      Ampco Pumps Company’s centrifugal pumps are used in a variety of applications and industries including: food & beverage processing, CIP & COP systems, water treatment systems including reverse osmosis and desalination, military and commercial marine applications, and chemical processing.

      Pump types available: Centrifugal

      AnsiPro Pump Company manufactures ANSI chemical process pumps for a broad range of chemical process, industrial, municipal, irrigation and recreational applications.

      Pump types available: ANSI process pumps

      APV manufactures sanitary centrifugal pumps serving the food, dairy, brewery, beverage, chemical process, bio-pharmaceutical process industries.

      Pump types available: Sanitary centrifugal pumps

      Barnes Pumps manufactures submersiable pumps for water and wastewater applications including sump, sewage, effluent, grinders, non-clogs, self-priming, fountain and dewatering.

      Pump types available: Centrifugal, fountain, grinders, non-clog, pressure sewer systems, sump and effluent, sewage ejectors, split case, condensate return systems, regenerative turbine, end suction, dewatering and vertical process.

      VFD Manufacturers and Distributors

      If you’re looking to install a VFD on your existing system, there are many options on the market. First it’s important to know some basic facts about choosing the right VFD. Prior to reviewing your options, be sure to gather the following information about your system, which can usually be found on the motor’s nameplate:

      • Horsepower
      • Full Load Amps (FLA)
      • Voltage
      • Type of Load (Constant Torque or Variable Torque)
      • Special Enclosure Needs

      It’s best to understand that sizing a VFD can be narrowed down by knowing the HP of the motor you want to control. For example, a 25 HP VFD can control up to 25 HP in power. Typically, this means that VFD’s can be slightly oversized, as in this case the same VFD can control a 20 HP motor. It’s best to get as close to the power requirements as possible to reduce the cost of the VFD purchased.1 However, knowing the FLA is much more critical, and is really the proper way to size a VFD. Comparing the FLA of the motor with the amp rating of the VFD is the best way to ensure that your VFD can provide the proper amperage to get your motor started. It’s best to give your motor a bit of cushion when choosing the VFD so that it can handle higher loads if need be. Being less conservative here pays off and is especially important if you have a constant torque load or a load that is difficult to get started. Although it may cost slightly more to purchase a drive with a higher amp rating, it will definitely pay off over time in reliability and functionality.

      Understanding the voltage requirements is also necessary and will change if you have a three-phase input vs. a single phase input. A variable or constant torque type VFD can be distinguished as well. VFD’s installed for energy savings are usually Variable Torque VFD’s, while Constant Torque VFD’s are typically used for positive displacement pumps which need constant torque at all speeds. It’s also important to know if there are any special enclosure needs to meet certifications such as Ingress Protection (IP), NEMA, and UL Type Enclosures. These are just some basic facts when sizing a VFD and a more comprehensive guide should be used when going through a design phase. For more information, please contact us.

      Lincus recommends the following popular manufactures when considering purchasing a VFD:

      • Dayton
      • Eaton
      • Fuji Electric
      • Schneider Electric
      • Weg

      Prices for VFD’s can vary by type, size, and brand. Contact us for an estimate on installation costs, or review this online catalog.