RONSOR MAY 2017 BULLETIN |
![]() |
In this bulletin, we take a look at utilizing our Vortab flow conditioners to correct the swirl and flow profile of effluent water to prevent pump cavitation, how fiber optic cables help flame scanner electronics stay further from the heat of the boilers and customizing sampling systems. |
Vortab flow conditioners for pump cavitation prevention |
The ProblemA lack of straight pipe run causes the water to have an asymmetrical flow pattern in the pipe. This creates a vacuum suction that causes high pressure shock waves to the pump's impeller, resulting in the impeller blades pitting and quickly wear out. There are 3 pumps pumping water from the main header. Previously, the pumps lasted for 3 to 6 months before requiring an impeller replacement which costs a significant amount of down time, labour and material cost. Preliminary studies have shown that the first and last pump (pumps A and C) are subjected to the most amount of cavitation. Flow ConditionsLine size: 8" SolutionAt the point in time when the Vortab was ordered, the pump A was not serviceable anymore. During the shutdown period, the Vortab was installed where the strainer once was, giving a small amount of sufficient straight run before the water enters the pump. The large strainer was being replaced by a smaller strainer upstream of the Vortab. VSR - 08.00-2-5-0-1 BenefitsSolves the issue: After having the Vortab installed for a year, the pump did not show signs of cavitation and is still in perfect functioning condition. |
![]() |
More Information |