China Topper Valve Packing Seal Kits Co., Ltd. is a specialized manufacturer focused on delivering high-performance industrial valves, sealing gaskets, and packing solutions for critical and demanding applications. Our valve portfolio—including gate, globe, and ball valves—is designed to meet stringent API standards and integrates advanced low-leakage graphite packing, ensuring reliable performance under extreme pressure and temperature conditions.
Alongside our valve range, we supply premium sealing gaskets and packing materials engineered to withstand chemical corrosion, thermal cycling, and mechanical stress. Every product undergoes rigorous third-party testing and is certified to globally recognized standards such as API 622, API 624, API 641, ISO 15848-1, and TA-LUFT, with verification from TüV Süd and TüV Rheinland.
Innovation is at the core of our development. We were among the earliest in China to invest in R&D for low-emission graphite packing solutions, addressing the strict requirements of international markets, including the United States. Through long-term collaborations with leading universities and research institutes, we have successfully tackled complex challenges in valve leakage, friction, and wear. These efforts earned us our first TüV-witnessed API 622 certification and have since expanded into a full portfolio of international approvals, proving the reliability of our valves in real-world operations.
What distinguishes us is our scientific, research-driven approach to valve engineering. Beyond machining, we focus on understanding how non-metallic materials respond to pressure and temperature, developing specialized coatings for sealing surfaces, and analyzing long-term friction and wear mechanisms. Our multidisciplinary team—spanning valve design, sealing systems, materials science, and automation—works together to build smarter, more durable valves. By bridging academic research with industrial application, we help customers achieve higher safety, efficiency, and service life, strengthening trust across industries worldwide.
