Boiler and Pressure Vessel code contains rules for the design and construction of unfired pressure vessels. The design of bolted flanges requires that gasket constants referred to as m and y be used in the calculation.
Topic Sponsor
Top Seals Articles
Although many of the energy costs of a shut-down can be difficult to quantify, they are numerous and substantial. Maintaining a process stream in operation increases its overall efficiency, while failures decrease it.
The oil and gas market has remained remarkably stable recently, bolstered by the high price of oil and strong worldwide demand. With refining capacity finite and political unrest in major oil producing countries such as Venezuela, Angola and Iran, the price may rise even higher.
Proper safety precautions for selecting, installing and maintaining seal systems
Changes in the pump media, pressure, temperature and even the decision to opt for longer pump maintenance cycles can all affect pump performance. In these cases, physical changes to the pump's elastomer seals can be used as a diagnostic tool to provide early warning of problems.
What are the key steps to cutting packing for optimum performance?
This month's “Sealing Sense” was prepared by FSA Member Ron Frisard and sponsored by the Compression Packing division.
In 1933, 36 American and Canadian companies attended the inaugural meeting of the Mechanical Packing Association in New York. After changing its name to the Fluid Sealing Association (FSA) in 1970, the organization has grown to represent more than 85 percent of the manufacturing capacity for North America.
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.
When seal designs are applied to abrasive slurry applications that properly address the five design considerations noted above, mechanical seals can provide very reliable sealing performance.
The conformability, flexibility and wide range of material combinations and designs enable packing to seal many difficult, unconventional applications. These capabilities, coupled with other packing systems components, can provide effective sealing solutions that reduce the consumption of valuable water and energy resources.
Latest Seals Articles
The focus has been on the main source of the emissions—valve stem packing. Several companies have evaluated current industry standards and have crafted testing protocols specific to their application requirements.
How does FSA’s role in standards development affect the pump and seal industries?
Dry fasteners provide secure attachment without personnel safety and
environmental issues.
Why are mechanical seals still the preferred choice in the process industries?
Many factors must be considered when making this important decision. Third of Six Parts
Proper seal choice is critical for optimal compressor operation.
What should be considered for the selection of expansion joints for pumps?
Power plant slashes maintenance time and labor costs dramatically by switching to split design mechanical shaft seal.
Why don’t my PTFE gaskets seal FRP, plastic and other light load flanges?
Find a reliable dry gas seal system for any application.
First of Six Parts
Industry News
Columns and Blogs
The performance of a centrifugal pump with a trimmed impeller will follow the affinity laws as long as that trim is relatively small.
Standards for repair will begin with a standard for vertical turbine pumps.The pump industry is undergoing renewed interest in the technical aspects and quality of repairs.
Charlie Jackson was unaware of any centrifugal pump manufacturer that knew how to calculate hydraulic axial thrust produced within liquid ends of their pumps.
