浙江喜鵲密封件有限公司

Magpie Valve is a leading innovator in valves.com/" target="_blank">valves, packings, gaskets, and sealing technologies. Rather than concentrating solely on mechanical fabrication, we focus on the scientific factors that truly determine sealing reliability—non-metallic material behavior, advanced coating technologies, and the fundamental mechanisms of friction and wear. By tackling these often-overlooked challenges, we deliver sealing performance that exceeds conventional industry standards.

Through close collaboration with top research institutions, we have made significant advancements in low-leakage graphite sealing technology and earned internationally recognized certifications including API 622, ISO 15848-1, TA-LUFT, API 624, API 641, and ISO 15848-1 CC3.

Supported by a multidisciplinary team and validated through rigorous testing—nearly 500 valves assessed from 400°C to –196°C and at pressures up to Class 2500 LB—Magpie Valve provides high-integrity solutions proven in demanding industrial environments. Our mission is to elevate global standards for sealing reliability, safety, and regulatory compliance.