Why don’t my PTFE gaskets seal FRP, plastic and other light load flanges?
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Find a reliable dry gas seal system for any application.
First of Six Parts
Follow the major developments in seal technology
This month's "Sealing Sense" was prepared by FSA member Larry Sheffield.
Proper safety precautions for selecting, installing and maintaining seal systems
All three API Plan 53 versions are intended to isolate the pumped product from the atmosphere and create a favorable artificial environment for the mechanical seal. Which of the three is optimal will depend on the specifics of the application. The choices of barrier fluid and maintenance capabilities are fundamentally important design considerations. Differences in the three include cooling and pressure capability as well
A discussion of current compression packing technology will help set the stage for an example of how this can be accomplished. Compression packing is still widely used to seal rotating equipment such as pumps.
Since metal bellows products vary greatly in what they are able to offer, it is important to understand the benefits and trade-offs as they apply to your particular operation. Be sure to review your applications and select the metal bellows seal best suited to help you extend meantime between repair, standardize inventory and increase reliability.
Frost & Sullivan estimates the total North American mechanical seals market revenues at $992.4.0 million in 2008.
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 little incentive for a change or upgrade.
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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
Follow the major developments in seal technology
This month's "Sealing Sense" was prepared by FSA member Larry Sheffield.
Proper safety precautions for selecting, installing and maintaining seal systems
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.
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 system requirements will maximize the performance reliability of your application.
Expansion joints are designed to provide stress relief in piping systems that are loaded by thermal movements and mechanical vibration.
The October 2008 Sealing Sense discussed new optical infrared technology authorized by the EPA for finding leaks. This month we will review in more detail the background, basis and future of this new way to monitor fugitive emissions.
Columns and Blogs
In this multi-part series, we will investigate several aspects of centrifugal pump efficiency.
First of Five Parts
Since the original publication of this draft standard in the January 2008 issue of Pumps & Systems, I have received feedback, encouragement, numerous questions and criticism. The draft listed three basic levels of repair.
The McGraw-Hill scientific dictionary [5] states that a volute is "a spiral casing for a centrifugal pump... designed so that speed will be converted to pressure."
