JST Seals

In the   oil and gas industry , the risk and consequences of unplanned downtime are greatest in extreme environments. JST understands the demands you face every day and offers a range of fully tested and certified wellhead sealing products to reliably meet your business and technical challenges. You can trust our  FS seals  and  S seals  as well as our T seals and locked T seals to perform in the most challenging conditions because they have all been put through the most rigorous testing procedures in our own state-of-the-art testing facilities. FS-seals The FS-seal is a relatively large cross section spring energized elastomer casing and tubing hanger seal for wellheads that always has the springs on the internal surface.  FS-seals are used against rough surface finish and wider dimensional and geometrical tolerances of casing and tubing.  Sealing materials utilized for wellheads need to withstand pressures as high as 15 000 psi,...

Backup rings   play a vital role in preserving the integrity of seals within pressurized aerospace hydraulic systems, minimizing leakage, and extending the lifespan of the components they protect. What are Backup Rings? The back up ring material could be PEEK, modified PTFE. PEEK™ back-up rings are designed to prevent extrusion in elastomer O-ring sealing systems. These rings are designed to close off the sealing system's extrusion gap and support the primary seal, especially under high-pressure conditions. 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 mating surfaces with increasing pressures and temperatures. Higher temperatures impose a severe burden on the physical and mechanical properties of elastomer O-rings, which further increases their tendency to extrude. The combination of high pressures and high temperat...

  Application of   FFKM in O-Rings , seals and gaskets can meet the chemical resistance and high temperature requirements of strictly regulated industries. Equipment operators in critical and strictly regulated industries such as oil and gas, chemical refining and processing, aerospace, pharmaceutical and food processing, and semiconductor chip manufacturing all face a common pain point: How can the elastomeric materials in the O-rings, seals, and gaskets that keep the machines moving meet the stringent requirements of their environments? The answer is  Perfluoroelastomers (FFKM) , a family of chemically and heat-resistant elastomers that combine the chemical resistance of polytetrafluoroethylene (PTFE) with the flexibility and elasticity of standard fluorocarbon elastomers (FKMs). FFKM was born and is now widely used in many industrial processes. However, due to the wide variety of compounds currently available, there are many factors to consider when selecting FFKM mate...