Gallagher Fluid Seals is a proud of its longtime partnership with DuPont®, having specified thousands of perfluoroelastomer parts over the past few decades.
DuPont is at the forefront of perfluoroelastomer development, creating elastomers with properties that can help meet highly specific application requirements.
But how do you know which elastomer is right for your application? DuPont provides this helpful guide.
Continue reading Selection Requirements for Elastomeric Seals
Gallagher Fluid Seals is a longtime partner of DuPont®’s, having specified thousands of DuPont perfluoroelastomer parts over the past few decades.
While elastomers were originally created as an alternative to natural rubber, they have expanded to include materials such as high-performance perfluoroelastomers for demanding applications.
These materials can also be used in place of plastics in most, if not all, applications. DuPont is at the forefront of perfluoroelastomer development, creating elastomers with properties that can help meet highly specific application requirements.
Read on to learn more from Dupont about the differences between elastomers and plastics, and how elastomeric seals perform compared to plastic seals.
Continue reading Elastomer or Plastic… Which Should You Choose?
Spring energized PTFE seals perform reliably in a variety of applications where conventional elastomeric seals fail due to chemical attack, extreme heat or cold, friction, extrusion or compression set.
PTFE seals have three basic design elements:
- A pressure-actuated U-shaped jacket
- A metal spring loading device
- High performance polymeric seal materials
So what is a spring energized PTFE seal? It’s a spring-energized U-cup that uses a variety of jacket profiles, spring types and materials in rod and piston, face and rotary seal configurations. They are used when elastomeric seals fail to meet temperature range, chemical resistance or friction requirements.
Jacket profiles are made from PTFE and other high performance polymers. Spring types are available in corrosion-resistant alloys, including stainless steel, Elgiloy and Hastelloy.
Continue reading What is a Spring Energized PTFE Seal?
Kalrez® parts made from compounds 6221 and 6230 provide superior chemical resistance and low contamination from extractables in pharmaceutical and food handling applications where FDA compliance is required. Compounds 6221 and 6230 are especially suited for Water For Injection (WFI) systems, Steam-in-Place (SIP) cleaning and other critical systems,
Unlike other elastomeric seals made with FDA compliant elastomers, Kalrez perfluoroelastomer parts are thermally stable up to 260°C (500°F), permitting use in applications such as Stage II Sterilization processes, where other elastomers lose their sealing capabilities.
Continue reading Kalrez Perfluoroelastomer Parts for Pharmaceutical and Food Handling Applications
Freudenberg’s Simmerrings seal rotating shafts reliably and are used in millions of applications and with a variety of equipment in general industry and the automotive sector.
This radial shaft seal ring is based on know-how gained from years of experience. It continually undergoes further refinement based on the latest technological developments, and is particularly functionally reliable, flexible and extremely stressable.
The tried-and-tested original Simmerring keeps up with the times. Freudenberg’s experts have continued to develop it, with improvements in seal lip profiles. This has made it possible to further enhance its reliability and functionality across a broad range of applications. The advances include a friction-optimized design – the Low Friction Simmerring® – to decrease fuel consumption, which leads to reductions in CO2 emissions.
Gallagher Fluid Seals offers a comprehensive selection of Freudenberg Sealing Technologies products suited to a variety of requirements.
Continue reading Reduce Fuel Consumption and CO2 Emissions with the Low Friction Simmerring
Drop-in-place seals offer easy installation and time-saving assembly, providing seal retention in straight-wall or dovetail grooves.
Gallagher and the Parker ISS Division design each drop-in-place seal with the application in mind, taking into consideration the material and manufacturing process of the mating surfaces to determine the most efficient design.
The drop-in-place design utilizes a rubber encapsulated plastic or metal backbone, lined with retention and stabilizer ribs. This design holds simple or complex seal shapes, easing installation and providing automation possibilities. Small contact points require less flange loading, providing maximum sealing under minimal pressure for non-ideal surfaces.
Continue reading Drop-in-Place Seals