• 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...

• October 22. 2021

The back up ring, also called anti extrusion ring, is aptly named as they do just that: they back-up an O-ring. The purpose of using the backup ring is to prevent the O-ring from extruding into the sealing gap under the system pressure. The structure of the increased back up ring will bear much higher pressure than using the O-ring alone. The profile shape of the back up ring is usually rectangula...

• April 13. 2022

JST makes custom and standard PEEK back-up rings. Custom sizes up to 24” outer diameter. PEEK™ back-up rings are designed to prevent extrusion in elastomer O-ring sealing systems. Elastomer O-rings serve as effective seals for dynamic and static applications in hydraulic and pneumatic equipment systems. A drawback of elastomer O-rings is their tendency to extrude into the clearance of ma...

• 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...

• January 15. 2023

PEEK is a colorless organic thermoplastic semi-crystalline polymer with excellent mechanical and chemical resistance properties. It’s high-resistance to terminal degradation makes it useful in oil and gas environments. The processing conditions used to mold PEEK can influence the crystallinity and hence the mechanical properties. As with PTFE, PEEK has several benefits for oil and gas companies. I...

• February 24. 2023

PEEK is one of the most radiation resistant plastics in common use. It can withstand exposure of 109 rad before any performance degradation occurs. PEEK can also operate successfully at temperatures up to 500 ° F. PEEK is usually used for back-up rings, bearings, and structural seal components such as seal carriers and valve blocks. It's a challenge to create a spring energized seal jacket out of ...

• April 12. 2023

Polyether ether ketone (PEEK) is a special engineering plastic with excellent performance, which has many significant advantages compared to other special engineering plastics, such as high temperature resistance, excellent mechanical properties, good self-lubrication, hydrolysis resistance, and ease of processing. The oil and gas industry has recognized PEEK’s advantages for components used in do...

• 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...