• August 27. 2021

Wellhead is a critical part of the oil and gas infrastructure. Seals material and design must withstand pressures as high as 15K psi and temperatures LU (-46℃~121℃), PU (-21℃~121℃), or SX (-18℃~178℃). From material development, seals design, testing, through to production, JST make FS seal and S seal to perform in the toughest situations, delivering reliable high pressure sealing. They combine the...

• February 10. 2022

There are two sets of sealing rings (secondary sealing of oil casting head) at the bottom of conventional oil pipe head and casting head, which are used to seal the castings suspended at the top. At present, the commonly used seals are FS seal, S seal and P seal. The design of S and FS wellhead seals requires that they can withstand higher and higher pressure and temperature, and meet more stringe...

• December 07. 2023

Metal seals play a crucial role in various applications within the oil and gas industry. Their exceptional performance and reliability make them an essential component in the sealing sector. In this article, we will explore the manufacturing process of metal seals and their key applications in the oil and gas industry. 1.Manufacturing Process The manufacturing process of metal seals involves the f...

• September 22. 2025

In oil wellhead applications, sealing system failures are not an option. Environments characterized by extreme pressures (often exceeding 15,000 psi), aggressive sour gas (H₂S/CO₂), rapid temperature fluctuations, and constant vibration relentlessly test the limits of standard sealing solutions. Elastomeric seals can extrude, degrade, or harden, leading to catastrophic leaks, environmental hazards...

• October 16. 2026

In oil and gas wellhead equipment, both MEC metal end cap seals and P seals are used for demanding static sealing applications. However, they differ in construction, sealing mechanisms, and the requirements they are designed to address.   The main difference is that an MEC seal combines an elastomer sealing element with bonded metal end caps, while a P seal uses an elastomer-based sealing ele...