Agitator Seal Runs Without Fail for 13 years
Due to heat-shrink technology, agitator seal functions failure free for more than a decade.The year 1997 started with some memorable events depending on your political and/or sporting interests. On...
Buffer & Barrier Fluids
What are the differences between using water or oil as a buffer or barrier fluid?
The industry has developed a specialized method over time.
This discussion opens a three-part series covering mechanical seal piping plans that provide guidelines for various seal arrangements, fluids and control equipment to help you determine what support...
The balance between cost and ease of installation should be the major deciding factor.
Cyclone Abrasive Separators Improve Seal Life
The fluid is cooled through this separation process to lower the temperature at the seal faces.
Advances in diamond are bringing the well-known properties of the world's hardest material to mechanical shaft seals. Diamond has long been sought after as a seal face material because of its...
Critical IssuesThe mechanical seal industry, like the pump industry, will continue to face significant opportunities as well as challenges as we progress further into the globalized 21st century.Chief...
Efficiency Through Indirect Measures
Indirect factors can directly impact the true efficiency of the product-transfer process, if not considered and monitored.For months, the focus of the Pumps & Systems "Efficiency Matters" column...
Efficient Operation with Diamond-Faced Mechanical Seals
Inadequate lubrication and dirt do not prevent multiphase pumps from operating efficiently when using diamond-faced mechanical seals.
End users will consistently purchase these critical wear components.
Welded metal bellows seals continue to have success as a core sealing technology and have gained popularity recently in new innovative sealing technologies such as high-temperature non-contacting gas...
To eliminate leakage, mechanical seals are the method of choice in sealing most pumps in ethanol plants. However, eliminating process leakage in rotating equipment does present many unique challenges...
Initial costs and life cycle costs affect which sealing method is chosen for an application. If a sealing device cannot be considered an investment or will not produce an immediate return, there is...
FSA Sealing Sense
This article is related to an earlier Sealing Sense that answered the question "When and how do I use API Flush Plan 53?" (June 2005). Now we will focus on the three variances of Plan 53 (see Figure...
FSA Sealing Sense- April 2012
Why are mechanical seals still the preferred choice in the process industries?This month’s “Sealing Sense” was prepared by FSA members Phil Peck & Andy Martin.The challenges facing process...
What is the sealing technology of choice for water and wastewater treatment?
Graphite and Nanocrystalline Diamond Surfaced Bearings
Low friction surface technology aids magnetic and hydrodynamic bearing reliability and failure resistance.Magnetic bearings have the advantage of non-contacting, super-low friction performance. With...
In today's global environment, the "one size fits all" approach is used for so many products that we expect it to apply to just about everything. In the mechanical seal industry, one problem with that...
Two imperatives for many of today's industrial plants are to reduce the cost of operations through the enhancement of rotating equipment reliability and enhanced energy efficiency of pumping systems....
One approach to improving mechanical seal performance is to upgrade to a sintered silicon carbide composite material. Silicon carbide based materials have been increasing the limits of mechanical...
This month's Sealing Sense was contributed by FSA Members Marty Rogin and Jim Richter The March 2009 Sealing Sense concluded that pipe strain can cause failure of the packing or mechanical seal since...
Five performance factors affect the life of a mechanical seal and guide the determination of an optimum replacement cycle for that seal. They also lead to improved seal life and mean time between...
Avoid these root causes of seal failure.
Improving Mechanical Seal Performance with Diamond
The growing body of diamond performance data is casting doubt on past assumptions about the ideal face materials for dry-running and poorly lubricated applications. A new family of diamond-enhanced...
Pumps and Systems, May 2009 Find out why level controls can fail in municipal wastewater treatment plants and similar systems and what technologies are available to combat failure. Leaving the...
New Leak Prevention Technology
Air-operated piston assembly, injectable and air flush enhance this sealing system's performance in harsh applications A leak prevention system (LPS) is available that is effective in sealing...
Sealing Solutions: The Future of the Mechanical Seals Market
Frost & Sullivan estimates the total North American mechanical seals market revenues at $992.4.0 million in 2008. Figure 1 shows the revenue trend for the North American mechanical seals market...
Shaft misalignment is one of the most common causes of premature mechanical seal failure. Higher leak rates typify these failures. Rapid failures can occur in high pressure and speed applications....