Magpie Valve Packing Gasket Co. Ltd

About Magpie Valve
Magpie Valve
is a leading manufacturer of industrial valves, packing, gaskets, and seal kits. As a research-driven enterprise, we are dedicated 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 applications by focusing on the fundamental factor that determines their reliability—sealing performance. In today’s valve industry, large-scale machining is no longer the main challenge. Instead, the true bottlenecks lie in the mechanical behavior of non-metallic materials, advanced surface coatings for sealing components, and the study of friction and wear mechanisms. These areas are the foundation of our innovation.

Our multidisciplinary team includes nuclear-grade sealing engineers, valve specialists, materials scientists, and electromechanical engineers. Together, we combine academic insight with industrial expertise to deliver high-integrity valve solutions. We collaborate with leading research institutions such as 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. These partnerships allow us to conduct in-depth studies on low-leakage graphite sealing technologies and systematically address the root causes of sealing failure.

Backed by rigorous testing and authoritative third-party validation, Magpie Valve holds multiple industry-recognized certifications, 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—under extreme conditions ranging from 400°C to -196°C and pressures up to Class 2500 LB.

Through these efforts, Magpie Valve not only ensures compliance with international standards but also sets new benchmarks for reliability, safety, and innovation in the global valve manufacturing sector.