China Valve Packing Co., Ltd.

China Topper Valve Packing Seal Kits Co., Ltd. is a specialized manufacturer committed to delivering high-performance industrial valves, sealing gaskets, and packing solutions for mission-critical applications across a wide range of demanding industries. Our core product lineup—featuring gate valves, globe valves, and ball valves—is engineered to meet rigorous API standards and integrates advanced low-leakage graphite packing to ensure exceptional sealing performance under extreme pressures and temperatures. In addition to valves, we produce high-quality gaskets and packing materials engineered to withstand chemical corrosion, thermal cycling, and mechanical stress. Every product we manufacture undergoes third-party testing and is certified according to internationally recognized standards, including API 622, API 624, API 641, ISO 15848-1, and TA-LUFT, with verification by respected organizations such as TÜV SÜD and TÜV Rheinland. Our dedication to innovation and sealing excellence began with early R&D into low-emission graphite packing technologies to address stringent environmental and safety regulations in markets like the United States. Through long-term collaboration with leading universities and research institutes, we’ve tackled complex challenges related to valve leakage, material friction, and wear—achieving milestones like our first TÜV-witnessed API 622 certification and a growing portfolio of global approvals. What truly differentiates Topper is our scientific approach to valve development. While many focus on precision machining, we go beyond by deeply analyzing the mechanical behavior of non-metallic materials, advancing surface coatings for sealing components, and studying long-term friction and wear mechanisms. Our multidisciplinary team—including experts in valve design, materials science, sealing systems, and automation—works together to develop smarter, safer, and more durable valve solutions. By bridging cutting-edge research with real-world industrial needs, we empower our customers to improve operational reliability, extend equipment lifespan, and meet the highest performance standards—earning trust across sectors such as petrochemical, power generation, pharmaceuticals, and more.