• October 25. 2023

Whether it is on onshore oil wells, offshore drilling platforms, or subsea oil wells, it is necessary to avoid blowouts at all costs - or uncontrolled release of natural gas and/or crude oil from excavation sites. JST provides high-quality industrial rubber products for the oil field industry, such as rubber blowout preventer seals. With the help of the blowout preventer seal, the well can be safe...

• November 15. 2023

With the development of sealing technology for high pressure environment, the requirements for sealing performance are more and more stringent. The high pressure sealing technology is widely used in EOG, chemical industry, aerospace and other fields. MEC seal is a non-metal sealing ring which is used under high pressure, with good corrosion resistance, high pressure resistance and resistance to ex...

• January 12. 2024

Choosing the right seal for your application is not easy. If you want a reliable and long-lasting performance, it’s crucial to consider the following operational conditions. Working Pressure: High pressure applications require higher durometer seals to resist extrusion. Working Temperature: Different elastomers have different low and high temperature capabilities. Installation Parameters...

• January 19. 2024

JST’s metal end cap seal is a customized elastomer-to-metal seal that combines the advantages of metal-on-metal components with the flexibility of elastomeric seals for maximum extrusion resistance in high-pressure wellhead sealing environments. These high performance elastomer-to-metal bonded sealing elements provide the high level of extrusion resistance necessary for high pressure casing and tu...

• February 26. 2024

JST designs and manufactures spring energized lip seals for ball valve. In this article, we will introduce some lip seals used for different sealing application in ball valve. Lip seal type FVR is used for ball valve seat sealing. As shown in picture Fig-1, the FVR lip seal contains four parts. 1- T ring (material: carbon filled PTFE), 2- U ring (material: carbon filled PTFE), 3-Spring (material: ...

• March 29. 2024

MEC seal is short for Metal End Cap Seal, and it is the seal bonded the metal end cups on elastomer, which can provide a high level of extrusion resistance and metal to metal sealing. MEC seal is designed for EOG applications in harsh conditions, particularly for high pressures and high temperatures. Usually the elastomer can be HNBR, FKM, Aflas which depends on the application, and the material o...

• May 27. 2024

Open groove The open groove structure is the most recommended groove form. The open groove structure is a separate two-piece design. The lip seal does not need to be stretched or twisted for assembly.(Fig:4-1) Typical features: The lip seal does not need to be stretched or twisted for assembly. Lip seal can be disassembled and assembled repeatedly without causing damage to it. Two-piece structure ...

• December 06. 2024

(I)Combined seals 1.Step seal: The Step seal structure is similar to that of the Glyd ring, and is composed of an O-type rubber seal and a special rectangular or trapezoidal seal filled with polytetrafluoroethylene. Step seals can be divided into hole seals and shaft seals, which only have a one-way sealing effect. Step seals are characterized by low friction, no creeping, and long service life. I...