Energy Graphs: Basics to Graphing [Article]
Have you ever n
Time Simulation with Overtime [Article]
It is often necessary to see how a piping system operates over time. For example, as a tank is pumped down, the static head increases, resulting in a smaller flow rate through the pump. This redu
Fluid Flow Software vs. Spreadsheets [Article]
The traditional approach for sizing pipelines in fluid piping systems is done using spreadsheet programs. These provide a platform for organizing data and performing the single pipeline calc
Modeling a Pump with a VFD to Maintain a Fixed Pressure [Article]
Often a pump needing to provide a fixed pressure at the pump discharge does so by adjusting the pump speed with a variable frequency drive (VFD). This is not a native feature of the PIP
Finding the Most Hydraulically Remote Loop [Article]
If you have set the system flow rate with one or more fixed flow pumps, you will need to leave one of the system loops uncontrolled (i.e. set the loop FCV to the fully open position). The lo
What is NPSH for a tank open to atmosphere? [Article]
Questio
Pumping into a Partially Full Pipeline [Article]
Often it is necessary to pump into a pipeline that may or may not be full of liquid. A user was unable to get the needed results because the discharge pipeline in her system was full under high pumpin...
How Not to Save Energy by Installing a High Efficiency Motor [Article]
As Seen in the June 2011 Issue of Plant Engineering Magazine I
Piping System Brain Teaser #2 [Article]
Pump Curve Accuracy [Article]
Introduction What are the attributes that make one pump selection software package superior to another? Aside f
Value of the System Resistance Curve (Part 2) [Article]
System Operation with a System Resistance Curve Introduction This article is a
What is suction specific speed and how can it be used in centrifugal pump select... [Article]
Should the pump affinity rules be used to correct pump curve data when trimming ... [Article]
What Information is needed to Accurately Model a Real-world Piping System in PIP... [Article]
Introduction
One common support question we get is "What information is needed to accurately model a real-world piping system in PIPE-FLO?" The answer to tha
Entering Pump Curves into PIPE-FLO or Flow of Fluids [Article]
If the pump that you wish to model in PIPE-FLO is not available in one of the electronic pump catalogs, then the next best thing is to manually enter the pump curve data. This article will descri
Value of the System Resistance Curve (Part 1) [Article]
Introduction This knowledge base article describes the value of a system resistance curve in understanding of how the various elem
Program Crashes when printing BOM with multi-stage catalog pump (PB 001-11) [Article]
Background Printing a bill of materials (BOM) report will cause the program to crash if the system has a multi-stage catalog pump with a “Line” f
How to Share Selection Lists in PUMP-FLO Premium [Article]
You can share a PUMP-FLO Premium selection list with anyone who has an email account. Share recipients don’t need a Premium subscription to view the list, but will need to create a user account ...
How Pressure Independent Control Valves Work [Article]
Introduction
Modeling Positive Displacement Pumps [Article]
Both PIPE-FLO and Flow of Fluids can be used to model positive displacement (PD) pumps. PD pumps are modeled using a combination of a fixed flow pump and a slip component. This article