• August 06. 2021

Low temperature cryogenic seals are widely used in LNG Compressors, Cryogenic Valve, LNG Fueling Systems. Sealing cryogenics is a balancing act of many factors such as spring force, surface finish, friction and allowable leakage. The ball valve is simple in structure, small in installation space, and sealed by medium force, not affected by external driving force, so it is widely used in various wo...

• 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...

• January 15. 2023

Backup Ring (anti-extrusion rings) fit in the gland between the seal and the clearance gaps to provide zero clearance. Back-up rings provides additional resistance support to the seal and minimizes the risk of the seal being squeezed out of its housing under pressure. Although they do not be designed with sealing function in themselves. They used with o ring play an important role in whole sealing...

• September 18. 2023

In recent years, with the continuous development of petrochemical and shale gas, new energy is also in coutinuous development. The market demand and development of hydrogen energy is also increasing, posing many challenges to our transportation and development processes. As an indispensable component in transportation and driving equipment, sealing components play an important role in ensuring the...

• 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...

• September 09. 2024

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 o...

• October 21. 2024

PEEK (polyetheretherketone) and PTFE (polytetrafluoroethylene, commonly known as Teflon) backup rings both play important roles in sealing applications, but they have some significant differences in material properties and application benefits. Here are their differences and their respective advantages: 1. Differences in material properties PEEK backup rings: Strength and rigidity: PEEK has high m...