• June 21. 2021

The NORSOK standards have been developed by the Norwegian petroleum industry to ensure adequate safety, value adding and cost effectiveness for existing and future petroleum industry developments.   The intent of NORSOK M-710 standard and qualification process is to assure that non-metallic sealing material manufacturers have sufficient understanding and experience with the applicable materia...

• July 16. 2021

JST's Spring Energized Seals, also called Lip Seals, are normally comprised of a machined polymer jacket and a spring energizer. They are available for rod, piston, and rotary applications, and can be manufactured in a variety of polymer materials depending on each application requirement. Our seals can be made of different PTFE materials, from Virgin PTFE or PTFE with fillers of di...

• July 29. 2021

Piston seals for hydraulic cylinders are quite similar to rod seals, but they are attached to a piston that seals a bore or cylinder housing. These seals are specifically designed to prevent pressurized fluid from leaking down in between the piston and the bore, while the piston itself is pushed down the cylinder bore. The high-quality hydraulic piston seals from JST will keep the pistons in your ...

• November 01. 2021

Rod seals are the most important seal within any hydraulic sealing system, which are used to prevent leakage of hydraulic fluid to the outside of the sealing system. Rod seals should be paired with an appropriate wiper and gland housing design to ensure correct operation. Rod seals are often the critical factor in ensuring that a hydraulic cylinder operates at peak performance. Leakage throug...

• June 10. 2022

JST produces different material spring energized lip seal. Jacket material such as PTFE, PEEK, TFM. Spring material include 316ss or Alloy spring. For different working conditions, we use different seal designs and materials. If seal works at pressure over 6000PSi, PEEK back up ring is needed. For -196°C, we would use material TFM+Alloy spring. JST has ability to produce different dimensions of sp...

• July 27. 2022

PTFE seal is the core of hydraulic equipment and the guarantee for normal operation of hydraulic equipment. Therefore, the installation of PTFE seals is very important. Any error in the installation process may affect the sealing performance, and then affect the normal operation of hydraulic equipment. Therefore, it is necessary for operators to understand the installation precautions of PTFE seal...

• August 03. 2022

The high-performance metal spring energized seal is made of high-performance polymer, which can solve the sealing challenges of rotating motion, friction resistance limitation, plane change along the sealing surface and dynamic sealing. PTFE spring energized seals are designed for extreme low temperatures ranging from -270 ° C to extremely high temperatures, sometimes exceeding 300 ° C. The specif...

• August 12. 2022

Vee packing is used for downhole equipment in oil field. JST provides chevron and HNBR Vee packing. The Vee packing group is composed of a top ring, a bottom ring and several intermediate center rings. V-Packings is ideal for medium and heavy duty applications. V-packing can withstand low pressure and high pressure when working under the most extreme conditions. JST standard Vee Packings materials...