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How Parjet Uses 5 Types of Rotary Seals to Enhance Your Rotary Solutions?
Rotary seals play a pivotal role in various industries, ensuring that crucial machinery functions smoothly and efficiently. Behind their seemingly simple design lies a complex science that blends engineering precision with material innovation. At Parjet, we're committed to delivering high-performance rotary seals that meet and exceed industry expectations. In this article, we delve into the science that powers these remarkable sealing components.
At Parjet, customers can find their rotary solutions by selecting 5 types of our rotary seals:
HiPerSeal® – Spring Energized Seals
Spring Energized seals are a U-shape machined performance polymer that uses spring energizers to provide force for the sealing lips. The outer seal jacket is commonly made from PTFE compounds using other high-performance fillers to utilize the overall performance. The springs help the sealing lips to constantly have in contact with the shaft and create a leak tight seal, allowing the seal to have slight misalignment. Parjet offers a wide variety of springs, such as canted coil springs, helical springs and cantilever spring which are chosen for different operating conditions.
HiPerLip® – PTFE Rotary Lip Seals with metal casing
PTFE lip seals are also known as PTFE Shaft Seal, is a rotary shaft seal with a special sealing lip design. This type of seal is ideal for sealing high-speed rotary applications with low to medium pressure. The outer metal casing is pushed into the groove which makes sure that the seal does not rotate with the shaft and there is minimum friction between the sealing lips and shaft. This design of the HiPerLip withstands high speed applications.
HiPerFlon® – PTFE Rotary Lip Seals with O-Ring
PTFE lip seals can also come in other forms, with O rings on the OD. The O ring on the OD can prevent the seal from rotating with the shaft. HiPerFlon can withstand medium to high speed with low pressure operating environment. With the PTFE body design, HiPerFlon is easy to machine which can adapt to different dimensions without the need for new tooling.
PTFE Glide Ring Set – PTFE seal with O Ring, commonly known as step seals
PTFE glide ring set can be used in high pressure and very low speed applications. Unlike other seals mentioned above, PTFE glide ring set is easy to install which can be used in closed and small grooves. It can also be used in bi-directional pressure applications. The temperature limitation will depend on the material of the O ring. It is commonly used for piston or rod hydraulic applications.
ParSeries® – Mechanical Seal
Mechanical shaft seals are often an ideal sealing method for advanced rotary applications. They provide the most suitable sealing method under many conditions especially high temperatures, high pressures, high viscosity (sediment), high speeds, large diameters, and many others. Most importantly, we have a highly technical mechanical seal providing and customizing the most optimal sealing solution for you.
Selection Considerations
Parjet offers a selection of rotary seals, below are the summary of the different types of PTFE rotary seals and their suitable application:
HiPerSeal® – Low speed High Pressure
HiPerLip® – High speed Low Pressure
HiPerFlon® – Medium to High-Speed Low Pressure
PTFE glide ring set – very Low Speed High Pressure
ParSeries® – High speed High Pressure
When selecting a rotary seal for any application, understanding the specific operational demands and environmental conditions is important. This ensures the chosen seal not only fits the application but also performs optimally throughout its service life. Key factors that significantly influence the choice of a rotary seal include the nature of the fluid being sealed, pressure and temperature ranges, and the speed of the shaft rotation. For a more comprehensive guide and further assistance in selecting the most appropriate seal for your application, please visit Parjet's “How to Select a Rotary Seal.”