Magpie Valve Packing Gasket Co., Ltd

About

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 deep material science, precision engineering, and third-party-verified performance. Our mission is to redefine the role of valves in industrial applications by addressing the core factor that determines their reliability—sealing performance.



In today’s Chinese valve industry, large-scale machining is no longer the primary challenge. Instead, the true bottlenecks lie in the mechanical behavior of non-metallic materials, advanced coating technologies for sealing components, and the friction and wear mechanisms that dictate long-term performance. By focusing on these critical yet often overlooked areas, we deliver solutions that push the boundaries of valve reliability and safety.



Our multidisciplinary team—comprising nuclear-grade sealing engineers, valve specialists, materials scientists, and electromechanical engineers—blends academic insight with practical expertise. In collaboration with renowned institutions such as the 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, we have conducted in-depth studies on low-leakage graphite sealing technology and systematically resolved the root causes of sealing failures.



Supported 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. We have tested nearly 500 valve products—ranging from gate and globe valves to ball valves—under extreme temperatures from 400°C to -196°C and pressures up to Class 2500 LB. These efforts not only ensure compliance with international standards but also establish new benchmarks for durability, safety, and innovation in the global valve manufacturing sector.Know more about China Manufacturer