Guangzhou JST Seals has been supplying stem packing seal and seat seal for 6A gate valve for over 20 years. To give an unequivocal assurance of quality, performance and durability, our seal has been tested and witnessed by the third party DNV. The seal materials are PEEK+PTFE+Elgiloy Spring.

Our seals are installed on Douson 3-1/16“ 15M Gate valve and 2-1/16'' 10M Gate valve and 1-13/16'' 15M Gate valve, the working temperature is LU, pressure 15000PSi. These valves have all passed PR2 test.

Besides, our stem packing seal and seat seal, also called face seal passed the PR2 tests conducted by various customers as well.

For more details about the test, or if you need us to design or quote, please contact with us.