Magpie Valve Packing Gasket Co., Ltd

As a leading manufacturer of industrial valves, packing, gaskets, and seal kits, Magpie Valve (https://www.magpievalves.com/
) is a research-driven enterprise committed to pushing valve technology forward through material science, precision engineering, and independently verified performance. Our mission is to elevate the role of valves in modern industry by focusing on the core factor that defines their reliability: sealing performance.

In today’s Chinese valve industry, large-scale machining is no longer the primary challenge. The real limitations lie within the mechanical behavior of non-metallic materials, the durability of advanced sealing surface coatings, and the complex friction and wear mechanisms that govern long-term valve performance. These often-overlooked domains form the foundation of our engineering strategy.

Our team includes nuclear-grade sealing engineers, seasoned valve experts, materials scientists, and electromechanical engineers. By combining academic research with industrial experience, we deliver high-integrity valve solutions designed for demanding applications. Magpie Valve has carried out extensive joint research with institutions such as the National Key Friction Laboratory at Lanzhou University of Technology, Ningbo Institute of Materials, East China University of Science and Technology, and the Shanghai Institute of Ceramics. These collaborations have enabled in-depth studies on low-leakage graphite sealing technologies and the systematic elimination of root-cause sealing failures.

Supported by comprehensive testing and authoritative third-party certification, Magpie Valve holds internationally recognized approvals including API 622, API 624, API 641, ISO 15848-1, TA-LUFT, and ISO 15848-1 CC3. To date, we have tested nearly 500 valve products—including gate, globe, and ball valves—across extreme environments ranging from 400°C to -196°C and pressures up to Class 2500 LB. Through these efforts, we don’t just meet global standards—we set new benchmarks for reliability, safety, and innovation in industrial valve technology.