Thanks to recent technological developments, split mechanical seals are now a viable solution to seal large shafts on rotating equipment.
With no mechanical seals to replace or maintain, these pumps provide a cost-effective option for hygienic applications.
The balance between cost and ease of installation should be the major deciding factor.
End users will consistently purchase these critical wear components.
The industry has developed a specialized method over time.
Avoid these root causes of seal failure.
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.
Buffer & Barrier Fluids
What are the differences between using water or oil as a buffer or barrier fluid?
The Revised API 682 Mechanical Seal Standard
The 4th Edition includes details on the revised product coding system, the seal system selection process and seal supply systems.
Cyclone Abrasive Separators Improve Seal Life
The fluid is cooled through this separation process to lower the temperature at the seal faces.
What is the sealing technology of choice for water and wastewater treatment?
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...
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...
Part Two Part Three 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...
Part One Part Two Conclusion of our series covering applications in which they are used, why they are used, how they fail and things operators can check/do to maintain the performance of the seal...
Part One Part Three Plan 12 Plan 12 is similar to a Plan 11. The flush is taken off of the pump discharge, or and intermediate stage in the case of multiple stage pumps, through a strainer or...
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...
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...
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...