China Topper Valve Packing Seal Kits Co., Ltd.  is a specialized manufacturer of high-performance industrial valves, sealing gaskets, and packing solutions designed for critical applications in demanding industries. Our valve portfolio—including gate, globe, and ball valves—is engineered to comply with stringent API standards and incorporates advanced low-leakage graphite packing, ensuring superior reliability under extreme pressure and temperature conditions. In addition, we supply premium sealing gaskets and packing materials built to withstand chemical corrosion, thermal cycling, and mechanical stress. Every product undergoes rigorous third-party testing and holds certifications from internationally recognized standards, including API 622, API 624, API 641, ISO 15848-1, and TA-LUFT, verified by TüV Süd and TüV Rheinland.

Our dedication to innovation and sealing excellence began with early R&D into low-emission graphite packing solutions to address the strict regulatory requirements of markets such as the United States. Through long-term collaborations with leading universities and research institutions, we have solved complex challenges related to valve leakage, friction, and wear. These efforts resulted in our first TüV-witnessed API 622 certification and have since expanded into a complete suite of international approvals, reinforcing the proven performance and reliability of our products in real-world operations.

What truly distinguishes us is our scientific approach to valve engineering. Rather than focusing solely on machining, we study the behavior of non-metallic materials under pressure and temperature, develop advanced coatings for sealing surfaces, and analyze long-term friction and wear. Our multidisciplinary team—spanning valve design, sealing systems, materials science, and automation—works collaboratively to create smarter, more reliable solutions. By bridging academic research with industrial practice, we deliver valves and sealing systems that enhance safety, efficiency, and durability, earning the trust of customers worldwide.