Magpie Valve Packing Gasket Co., Ltd

About Magpie Valve

As a leading manufacturer of industrial valves, packing, gaskets, and seal kits, Magpie Valve is a research-driven enterprise committed to advancing valve technology through material science, precision engineering, and third-party-verified performance. Our mission is to redefine the role of valves in industrial systems by addressing the core factors that govern reliability—especially sealing performance.

In today's Chinese valve industry, large-scale machining is no longer the primary challenge. At Magpie Valve, we focus on the next frontier: the mechanical behavior of non-metallic materials, advanced sealing surface coatings, and the friction and wear mechanisms that are often overlooked. These critical areas represent the real bottlenecks in developing high-performance, long-lasting valves.

Our team includes experts in nuclear-grade sealing, valve engineering, materials science, and electromechanical systems. This interdisciplinary group bridges academic insight with practical industrial experience to deliver high-integrity valve solutions.

We actively collaborate with leading institutions—including Lanzhou University of Technology’s National Key Friction Laboratory, Ningbo Institute of Materials, East China University of Science and Technology, and the Shanghai Institute of Ceramics—to conduct pioneering research in sealing technologies. These partnerships have enabled us to analyze and enhance low-leakage graphite sealing systems and resolve root causes of sealing failure through scientific rigor.

All Magpie Valve products undergo extensive internal testing and are independently verified by third-party organizations. We proudly hold a full suite of internationally recognized certifications, including API 622, API 624, API 641, ISO 15848-1, TA-LUFT, and ISO 15848-1 CC3. Our product testing spans nearly 500 valve models, including gate, globe, and ball valves, tested under extreme conditions—from -196°C to 400°C, and up to Class 2500 LB pressure.

Through these efforts, Magpie Valve not only meets global standards but also sets new benchmarks for reliability, safety, and technological innovation in the valve manufacturing industry.