China Valve Packing Co., Ltd.

China Topper Valve Packing Seal Kits Co., Ltd. is a specialized manufacturer dedicated to delivering high-performance industrial valves, sealing gaskets, and packing solutions for critical applications across demanding industries. Our comprehensive valve lineup—including gate, globe, and ball valves—is engineered to comply with stringent API standards and features advanced low-leakage graphite packing to ensure exceptional performance under extreme pressure and temperature conditions. Complementing our valves, we provide premium sealing gaskets and packing materials designed to resist chemical corrosion, thermal cycling, and mechanical stress. All products undergo third-party testing and are certified to globally recognized standards, including API 622, API 624, API 641, ISO 15848-1, and TA-LUFT, with verification from TüV SüD and TüV Rheinland.

Driven by a commitment to innovation and sealing excellence, we began early R&D into low-emission graphite packing technologies to meet the stringent environmental and safety requirements of markets such as the United States. Our long-standing collaborations with top universities and research institutions have helped us overcome complex challenges related to valve leakage, friction, and wear. These efforts culminated in our first TüV-witnessed API 622 certification and have since expanded into a full suite of international approvals, reinforcing the proven reliability of our valves in real-world operating environments.

What sets us apart is our scientific approach to valve engineering. While many focus solely on machining, we go further—studying the behavior of non-metallic materials under pressure and temperature, developing advanced surface coatings for enhanced sealing, and analyzing long-term friction and wear. Our multidisciplinary team of experts in valve design, sealing systems, materials science, and automation works collaboratively to engineer smarter, more reliable valves. By bridging academic research with industrial applications, we help our customers achieve higher levels of operational safety, efficiency, and long service life—earning trust across a wide range of industries.