• November 30. 2023

Spring energized seal is a spring-actuated, pressure-assisted sealing device consisting of a PTFE (or other polymer) jacket partially encapsulates a corrosion-resistant metal spring energizer. When the JST seal is installed in the gland, the spring is under compression, forcing the jacket lips against the gland walls and there by creating a leak-tight seal. The spring provides permanent resilience...

• November 28. 2023

PK002 is a (natural) high-performance thermoplastic commonly referred to as PEEK. The material has excellent physical and chemical properties to serve a wide range of applications at high temperature. PK002 has good tribological characteristics and is recommended for precision parts, where tight tolerances are required. JST chose its PK002: Virgin PEEK for the back-up ring material. PEEK is a much...

• 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...

• November 03. 2023

T-seals have a double acting seal design that are available in both piston and rod profiles.Their design aid in preventing extrusion up to 5000 psi. They are also a more reliable options, as they help eliminate the rolling or spiraling associated with O-rings,provide better extrusion resistance than an O-ring or backup ring assembly, promote lubrication for reduced friction and wear. Our standard ...

• November 03. 2023

Well completion is the process of making a well ready for production after drilling. As in well drilling, seals used in well completion have to cope with the increasingly harsher conditions of deeper wells and diverse geographical areas, from the heat of Africa to the cold of Canada, Norway or Russia, with storage conditions as low as to -60℃. The system pressure can vary from 345 bar to 2070 bar,...

• November 03. 2023

Well drilling is the process of extracting oil and natural gas from the ground (both onshore and offshore). As the well becomes deeper, the seals used in drilling must adapt to increasingly harsh environments. System pressures up to 2,070 bar (30,000PSI)and operating temperature extremes between -50℃(-58℉)and 220℃(428℉) are common. At the same time, seals used in drilling applications must have ex...

• 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...

• October 25. 2023

Lockdown screw seals have been widely used in geothermal applications as they provide superior performance over traditional metal pressure seals. These seals are designed to handle high pressure and high temperature conditions, making them an ideal choice for geothermal applications. Lockdown screw seals consist of HNBR (Hydrogenated Nitrile Butadiene Rubber) packing with stainless steel caps that...

• October 17. 2023

PTFE seal designs were developed to incorporate energizing elements such as O-Rings and metallic springs. These energizers ensure the PTFE seal is always in contact with the sealing surface. JST utilizes three different types springs to internally energize PTFE and other polymer seals, each with its own advantages. Below, we will discuss in details for some of the advantages of cantilever V-spring...

• October 17. 2023

SLS sealing packing is a high-quality stem packing primarily used in FLS and FLS-R style gate valves. This seal is spring energized and is applied to the top of the valve bonnet around the valve stem.  On the hydraulic valve, additional SLS packing is used at the bottom of the valve with the lower balance valve stem. Materials and Components The high-quality materials used by Heshka Oil in SL...