We offer ePUMP-FLO is a subscription or Software as a Service (SaaS) model for pump selection through the internet. ePUMP-FLO offers the convenience of the PUMP-FLO software without the hassle of maintaining license, upgrades, or IT administration. We host the program, maintain security, manage upgrades, and implementation is immediate. It's a much simpler way to access and use the software.

Powering ePUMP-FLO's hydraulic pump selection capabilities is the industry standard PUMP-FLO program. This technology has been built on over 15 years of research, development and extensive testing. The following information describes the basic functions of ePUMP-FLO hydraulic pump selection technology.

» Specifying the Pump Operation and Units

ePUMP-FLO gives you the option of choosing either 50 Hz or 60 Hz operation. You also specify US or Metric units. After the frequency and units have been specified, ePUMP-FLO presents you with a list from which you can choose from multiple pump types and speeds.

» Specifying the Fluid

In ePUMP-FLO, the fluid data is used in calculating the Net Positive Suction Head available, brake horsepower, and viscosity correction factors. The default fluid in ePUMP-FLO is water at 60 °F (15.6 °C), however there are 120 additional fluids available. You also have the option of entering a different fluid and specifying its properties (temperature, specific gravity, and viscosity). If you're selecting pumps for a high viscosity application, ePUMP-FLO automatically corrects the pump performance data using the method outlined in the Hydraulic Institute Standards.

» Specifying the Design Point and Searching the eCatalog

Next, ePUMP-FLO asks you to specify the design point. The design point is the flow rate and corresponding total dynamic head (TDH) that the pump must supply. Once the design point is specified, the ePUMP-FLO search engine and the manufacturer's eCatalog return a list of pumps that meet the design point.

» The Selection List

The pumps that meet the design point are displayed in the selection list. The selection list provides a convenient way of comparing the various pumps. The columns in the selection list are described below:

Type/Size - The manufacturer's pump type and pump size (or model name).
Speed - The pump test speed for fixed speed pumps, or the pump speed necessary to intersect the design point for adjustable speed pumps.
Dia - The pump impeller diameter. Impeller diameters are rounded to the manufacturer's specified trim increment.
Eff - The pump efficiency at the design point.
NPSHr - The Net Positive Suction Head required by the pump at the design point.
Power - The power required at the design point.
Motor - The motor size, listed in either hp or kW.

» The Graph Window

Choosing the most desired pump type/speed from the selection list completes the selection. ePUMP-FLO then generates a dynamic pump operating curve in the Graph Window. The pump curve displays the pump head, efficiency, horsepower, and NPSHr as a function of flow rate.

The pump type/size, speed, diameter, efficiency, NPSHr, power, and motor size for the design point are listed below the graph. You also have the ability to change the efficiency curve format from iso-lines to a single line curve.

» Changing the Pump Speed and Diameter

You can adjust the pump speed and impeller diameter by entering new values in the Speed and Dia boxes. ePUMP-FLO then redraws the curves and updates the data listed below the graph.

NOTE: The pump speed can only be adjusted between the test speed (or maximum speed, if specified by the manufacturer) and the minimum speed found in the manufacturer's catalog. The impeller diameter can only be adjusted between the pump's maximum and minimum diameters, in trim increments specified by the manufacturer.