• July 31. 2025

In LNG terminals, liquid nitrogen systems, and cryogenic pipelines (-196°C), standard elastomer seals fail catastrophically—brittle fractures, shrinkage-induced leaks, and cold flow compromise safety. As a leading cryogenic seal manufacturer, we engineer PTFE and PEEK ball valve seat seals specifically for sub-zero environments. Our materials resist thermal shock, maintain elasticity at -196°C, an...

• December 30. 2025

When it comes to unidirection Radial seal for the Ball valve seat, our customer would always prefer to choose JST style “BVR”, but why is that?   The answer lies in its optimized sealing geometry and pressure-activated design. The BVR series is made of a canted level spring and a polymer jacket, which is mainly used as a stem seal. Under pressure, the seal lip is energized and tig...

• August 28. 2026

Polypak seals are critical dynamic sealing components in gate valves, particularly in oil and gas applications where reliable shut-off is essential. When leakage occurs, a systematic troubleshooting approach can help identify the root cause and determine the most effective remedy. This guide outlines the key steps and considerations for diagnosing Polypak seal leakage in gate valves.   Step 1...