Why don’t my PTFE gaskets seal FRP, plastic and other light load flanges?
Topic Sponsor
Top Seals Articles
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
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.
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.
Whoever coined the phrase "Don't sweat the small stuff" was likely not an engineer. Everything engineers do is ultimately defined by the success of "the small stuff" that comprises the larger design projects.
his is the second of a four-part Sealing Sense series that provides guidance on best practices to minimize the size of the sealing system energy footprint.
The ultimate dream of a facility manager at any manufacturing plant is to install a piece of equipment and then—except for instances of planned maintenance or for a performance review—forget about it.
Latest Seals Articles
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
The next generation of materials where pumps meet mechanical seals may already be here in polymeric composites. The pump and mechanical seal industries just need to recognize, define and standardize these materials to realize their benefits.
In the past, there were two ways to seal a pump: the mechanical seal method or the compression packing set. Either choice was subject to potential leakage and/or hidden costs. For compression packing users, pump leakage has become so widely accepted that many companies have focused on better ways to divert the leakage rather than eliminate the leaks.
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.
It is easy to confuse graphite fiber packings with carbon fiber packings. In fact, the terms carbon fiber and graphite fiber are often used interchangeably, even by packing manufacturers. Both products are used to manufacture braided packings, and they both have relatively good chemical and temperature resistant properties. But there are differences, and each has its advantages and disadvantages.
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."
