China Valve Packing Co., Ltd.

Magpie Valve is a leading manufacturer of industrial valves, packing, gaskets, and seal kits, driven by a commitment to research, material science, and engineering excellence. Our mission is to redefine valve performance by focusing on what truly matters—sealing reliability and long-term durability.

In an era where large-scale machining is no longer the primary hurdle in China’s valve industry, we concentrate on the overlooked technical challenges that determine valve success: the mechanical behavior of non-metallic materials, advanced sealing surface coatings, and the friction and wear mechanisms critical to high-integrity performance.

Our multidisciplinary team includes nuclear-grade sealing engineers, valve specialists, materials scientists, and electromechanical experts. Together, we bridge academic research and industrial application. Collaborating with top institutions such as Lanzhou University of Technology’s National Key Friction Laboratory, the Ningbo Institute of Materials, East China University of Science and Technology, and the Shanghai Institute of Ceramics, we have made breakthroughs in low-leakage graphite sealing technologies and the root-cause analysis of sealing failures.

Magpie Valve's commitment to excellence is supported by stringent in-house testing and third-party certification. We hold globally recognized certifications such as API 622, API 624, API 641, ISO 15848-1, TA-LUFT, and ISO 15848-1 CC3. Our product range—spanning gate, globe, and ball valves—has been rigorously tested under extreme conditions, from -196°C to 400°C and up to Class 2500 LB pressure ratings.

At Magpie Valve, we go beyond compliance. We set new industry standards for safety, reliability, and innovation in valve design and sealing technology.Know more about Google SEO Directory