The increasing use of variable speed drives has made resonance problems more prevalent.
Crunching numbers and evaluating costs are critical steps in determining the best way to maintain equipment.
Small teams can double the amount of calibrations they carry out with multifunction, documenting equipment.
The reliability of high-speed and high-pressure pumps is crucial to several industries in the Middle East and North Africa. Oil and refinery services and desalination operations, for example, depend...
Revisiting the fundamentals of data examination, time and resolution can solve equipment issues before they happen.
Previous articles in this series explained how oversized piping systems can have higher operating and maintenance costs. Higher maintenance costs can adversely affect the reliability and uptime of...
Use a mathematical model that estimates vibration at the top bearing of a motor used on a vertical, wet-pit, column type pump.
Vibration changes can indicate cracks in pump rotating components, which can cause severe malfunction and failure.
Q. What information is available regarding NPIPA and NPIPR for rotary pumps? A. Net positive inlet pressure available (NPIPA) is the algebraic sum of the inlet and barometric pressure minus the...
Reduce high vibration and increase reliability with CST gear motor technology in power generation applications.
A simple mathematical model can be used to estimate vibration at the top of the motor in a vertical pump-motor structure.
Overall vibration trending is excellent for monitoring rotating machinery health, but not generally effective for tracking reciprocating compressors. A new generation of Reciprocating Machinery...
Comparing the vibration performance of identical or like machines can be used to detect defects and judge their severity. What is Comparative Analysis? Comparative analysis is a simple yet...
Although the use of transmitters in pressure measurement is growing, mechanical pressure gauges are still used on most systems as local pressure display to back up electrical readings. The selection...
VIBXPERT II Innovation Introduced in June 2010, the VibXpert II (VXP II) has many different uses and functions. The primary use is to extend the lifespan of equipment within a plant or facility...
Everybody knows that a rotating part or pump is going to produce vibration. Service personnel in the pump repair business, the air compressor industry, and electrical power generator providers all...
Proper shaft alignment makes a difference
Last September, we spoke about the importance of pipe-to-piping alignment, evaluating actual numbers, and tabulating stress values as they approach yield stress of pipe at various values of...
Intuition is wonderful, but sometimes deceiving. For example, I have always intuitively felt that "the better the alignment, the longer the pump life." But intuitively preaching about the horrors of...
One common definition of balance is when the mass centerline and the rotational centerline of a rotating part are equal. Another definition is when zero vibratory force or vibratory motion is imparted...