These seals and their piping plans offer a simpler alternative to wet containment systems.
End users should be aware of the latest standards revisions to employ the most up-to-date valve sealing practices.
Methane (CH4) is the second largest source of greenhouse gas emitted in the U.S. In 2013, CH4 accounted for about 10 percent of all U.S. greenhouse gas emissions from human activities. Methane's...
Compression packings have suffered from a reputation of being an old-fashioned technology unsuited to modern industrial processes. In the case of rotating equipment, they are largely superseded by...
The addition of five new styles of rubber expansion joints (REJs) within the Fluid Sealing Association (FSA) technical handbook has increased the opportunities for the selection and application of...
Many associations, societies and regulatory agencies have rewritten and redeveloped emissions and leakage standards and controls year after year. The partial list of organizations—based on voluntary...
What is the sealing technology of choice for water and wastewater treatment?
Compression packing used as a valve stem seal requires a compressive load. The appropriate compressive load can be accomplished by the most common method—to compress the packing by a fixed...
Controlling the load is essential to ensuring the gasketed joint will seal properly. Previous Sealing Sense articles have examined the types of gaskets to use, how flange finish affects gasket sealing...
FSA Sealing Sense: August 2012
How can I compare the performance of pump packing?
What Are the Most Energy Efficient Pump Packing Environmental Control Systems?
Compression packing has continuously been used to seal pump shafts in many applications. For most applications, the packing relies on the product itself for lubrication and cooling. In some...
What Gasket Properties Are Most Important, and How Do I Use Them?
This article will review properties from two basic tests, how they are determined and what value they have in selection of sheet-gasket material for an application. What Do These Properties Reveal?The...
What Fasteners Should I Use for My Bolted Flange Connection?
The purpose of this article is to show the importance in selecting the appropriate fastener standard and specification.The bolted flange joint assembly is a complex mechanical device that...
What is the impact of reliability on the sealing system energy footprint from pump shut down, repair and re-commisioning?
Last of Four PartsThis is the last of a four-part “Sealing Sense” series that has provided guidance on the best practices to minimize the size of the sealing system energy footprint. The first...
What is the Sealing System Energy Footprint for Controlling Process or Barrier Fluid Temperature?
This 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 first article discussed the energy...
What is the Sealing System Energy Footprint for Removing Diluents from the Process Stream?
The thermal energy footprint of removing diluents introduced by auxiliary processesThis is the third of a four-part “Sealing Sense” series that provides guidance on best practices to minimize the...
Such a question often comes up when it is time to recondition a mechanical seal: We use several different brands of mechanical seals in my plant. When a pump is taken out of service, we usually send...
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...
How do I prevent galvanic corrosion in my packing gland?
Galvanic corrosion is an electrochemical process that occurs between two dissimilar metals, or between a metal and a conductive non-metallic material, when both are exposed to an electrically...
How does thermal expansion influence the application of PTFE packing?
For many years, industry has recognized the inherent benefits of braided packings produced from PTFE fiber. Low coefficient of friction and outstanding chemical stability make it well-suited for...
What are the challenges with sealing water applications?
 Water is the most abundant liquid on the Earth's surface and is vital to many aspects of our daily lives. For these reasons, a wide variety of fluid handling applications involve transporting...
FSA Sealing Sense December 2006
How can I apply expansion joints to plastic and fiberglass reinforced piping?Thermoplastic and fiberglass reinforced (FRP) piping is often used for corrosive or corrosive and abrasive fluids. They...
FSA Sealing Sense October 2006
How do I evaluate and control my fluid sealing costs?First, we need to consider the cost elements associated with pump packing and mechanical seal. There are the obvious ones:Acquisition...
How do I choose the right gasket for pumps in chemical service? If a gasket is not compatible with the process media, chemical attack will begin to degrade it. Once this degradation begins,...
What Are the Basics of Applying Expansion Joints?
Elastomeric expansion joints serve many functions in modern piping systems including absorbing all directional movements, reducing noise and vibration, resisting shock, relieving pipe and anchor...
Over the years, the FSA Gasket Division has explored many specific sealing and gasketing issues in Sealing Sense. Regardless of all the insights provided, chances are that users of gaskets will be...
FSA Sealing Sense February 2012
Why don’t my PTFE gaskets seal FRP, plastic and other light load flanges?This month’s “Sealing Sense” was prepared by FSA member Charlie MiskellManufacturers and distributors of PTFE gaskets...
What is the Impact of Flange Finish on Gasket Performance?
While nonmetallic flanges such as glass and reinforced plastic are used for some services, most flanges are metal. Metallic flange surfaces can range from a rough casting to the smoothness produced by...
What are the considerations in applying mechanical seals to abrasive slurry applications? Many process industries are confronted with pumping abrasive slurries of various types.  This article...