Magpie Valve Packing Gasket Co., Ltd

We are a leading industrial valve manufacturer, combining global expertise with local insight to deliver highly customized solutions and localized service across diverse industries. Our company entered the API-standard valve manufacturing industry, marking the beginning of its journey in the valve sector. In response to the needs of American clients, we began researching API 622 low-leakage graphite sealing packing, focusing on improving valve sealing performance. During this period, nearly 500 valves underwent rigorous testing, covering gate valves, globe valves, and ball valves ranging from 1/2 Inch to 20 Inch. The tests spanned extreme temperature conditions from 400°C to -196°C and pressure ratings from Class 150 LB to 2500 LB, fully validating the reliability and stability of our valve products.