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Polymer Spring-Energized Seals: When Should You Consider Using Hytrel

Posted On May 10, 2019

Hytrel (a DuPont product) is a thermoplastic polyester elastomer, sometimes referred to as TPE, that combines in one product the elasticity of rubber with the strength and performance characteristics of an engineering thermoplastic. It can be found in applications such as: 

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Posted in: Spring-Energized Seals, Hytrel

MRO Applications for Spring Energized Seals in the Food Processing Industry

Posted On June 01, 2018

Spring-energized seals can solve quite a few problems for MRO (maintenance, repair, and operations) in the food processing industry. Many of the seals used in food processing are mission critical, and a failed seal can cost much more than just repairs and downtime because it can result in contamination.

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Posted in: Food & Dairy Industry, Spring-Energized Seals

Spring-Energized Seals - Factors That Influence the Performance: Part 1 - Mating Surface

Posted On June 16, 2017


Polymer spring-energized seals are an excellent option for many types of sealing applications.  

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Posted in: Spring-Energized Seals

Importance of Spring Energizer Design in Cryogenic Sealing

Posted On March 31, 2017

 
Cryogenic seals are required in a variety of industries, including LNG fueling systems, specialty gas manufacturing, cryo coolers, radio astronomy, scientific instrumentation, pharmaceutical research, and many more.  One of the most reliable sealing solutions for cryogenic applications are polymer spring-energized seals.  In this blog post, we are going to review spring-energized seals and then discuss what the recommended spring configuration is for cryogenic applications.

Source

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Posted in: Cryogenic Seals, Spring-Energized Seals

The 3 Most Popular Spring Energized Seals Materials for Cryogenic Sealing Applications

Posted On March 30, 2017


Cryogenic sealing applications are challenging, to say the least.  One popular solution is the use of spring-energized seals, and in this blog post we are going to talk about the 3 post popular materials used for spring-energized seals for cryogenic applications: PTFE, modified PTFE, and UHMW PE.


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Posted in: Cryogenic Seals, Spring-Energized Seals, UHMW, PTFE Spring-Energized Seals

Factors Influencing PTFE Seal Behavior: The PV Limit - Part 2 in a 3 Part Series

Posted On June 17, 2016

The performance of a dynamic PTFE seal depends greatly on the pressure and shaft velocity involved. In reality, a seal is in contact with only a small area of rotating shaft, which means that the dynamic forces and energy are going to be concentrated there. Much of the energy that comes from the shaft is going to be dissipated in two forms: wear and frictional heat, both of which can reduce the useful life of a seal. An increase in the force that holds the seal lip against the shaft or an increase in the speed of the shaft makes the effects of wear and heat even worse.

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Posted in: Polymer Seals, PTFE Seals, Spring-Energized Seals, PTFE Spring-Energized Seals

Fluid Media and PTFE Spring-Energized Seal Performance

Posted On April 08, 2016


FLUID MEDIA AND PTFE SEALS:

You may not be aware of the fact that the fluid media has a significant effect on seal wear.  In this article, we are going to explore exactly how fluid media can affect the performance of your PTFE spring-energized seal.

 

 

 

Need additional education? Check out these "Popular PTFE Post"  from Advanced EMC Technologies:

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Posted in: Polytetrafluoroethylene PTFE, PTFE Seals, Spring-Energized Seals, PTFE, PTFE Spring-Energized Seals

Cheat Sheet on Surface Finishes and PTFE Spring-Energized Seals

Posted On April 01, 2016


PTFE Spring-Energized Seal Design

When designing a component that includes a spring-energized PTFE seal, it’s not enough just to specify all the seal parameters; another key part of the design is the surface finish of the mating surface.  In this article, we are going to review what surface finish is, discuss the effects of surface finish on seal life, and then go over recommended surface finishes for spring-energized PTFE seals.

 

For more articles on PTFE Spring-Energized Seals from the Advanced EMC Technologies Blog:

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Posted in: Polymer Seals, PTFE Seals, polymer solutions, Spring-Energized Seals, PTFE, PTFE Spring-Energized Seals

Six Kinds of Polymer Jacket Materials for Spring-Energized Seals

Posted On August 04, 2015


Spring-Energized Seals Jacketing Material

 

polymer-spring-seal-jacket

When selecting a jacketing material for a spring-energized seal, engineers look at the

  • operating temperature,
  • pressure (including whether or not it is static or cyclic),
  • dynamic conditions,
  • media involved,
  • amount of seal squeeze,
  • and the geometry involved
In this article, we are going to look at some of the options out there for a polymer jacketing material.

 

Get even more information on Spring-Energized Seals from the following posts from Advanced EMC Technologies:

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Posted in: Polytetrafluoroethylene PTFE, Polyetheretherketone PEEK, Dynamic Sealing, Polymer Seals, Seals for Oil & Gas, Aerospace Seals, Sealing Solutions, Cryogenic Seals, UHMW Solutions, PTFE Seals, advanced polymers, Spring-Energized Seals, Teflon Seals

Five Energizers for PTFE Spring-Energized Seals

Posted On July 31, 2015


PTFE Seals

PTFE spring-energized seals are a popular choice for engineers.  The reasons are many, including their long service life, even wear, and their ability to perform in some of the harshest environments.  They work well in extreme temperatures; can even perform well in situations where operating conditions can vary significantly.  They usually offer a low compression set, have a long shelf life, and work very well in non-lubricated applications.  The use of PTFE results in extremely low friction and excellent chemical compatibility and users can choose from a variety of spring energizers.   

As one of the key components of a spring-energized PTFE seals, each of these energizers offers a different set of characteristics that allow engineers to find just the type of seal to suit their application’s needs.  In this article, we ae going to look at five different categories of energizers, and in what conditions they provide the best service:  coil springs, V springs, helical flat springs, cantilevered finger springs, and elastomeric O-rings.

 

Need more energizing? Check out these informative PTFE Spring Energized Seals articles from the Advanced EMC Technologies blog:

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Posted in: Polytetrafluoroethylene PTFE, Polymer Seals, PTFE Seals, Spring-Energized Seals, Teflon Seals

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