Suzhou Diwei Sealing Technology Co., Ltd. is a scientific and environmental-friendly enterprise that focuses on R&D, production and sales of high-performance sealing parts and materials for valves, pumps, petrochemical pressure vessels, reactors etc.

Our products include anti-knock O-rings, triangle rings (NORSOK M-710) for high-pressure conditions; anti-corrosion O-rings and triangle rings (NACETMO187 and NACE) for high H2S conditions (TM0296); PTFE and modified PTFE products for a wide range of temperature and pressure conditions; PEEK and modified PEEK products for high-temperature and high-pressure resistance; PCTFE for ultra-low-temperature resistance; an ultra-low-temperature pan race ring in line with SHELL standards; and low-leakage filler that meets API 622, ISO 15848, TA-LUFE, BAM, and SHELL standards, among others.

Our main technical engineers have over 10 years of experience in R&D of sealing solutions. We stay up-to-date with market and industry trends and maintain excellent communication with domestic and international partners. We also maintain close cooperation with major research and design institutes to develop a range of new, high-performance sealing products.