GGG50 Butterfly Valve

A GGG50 butterfly valve is a lightweight, quarter-turn rotary valve cast from high-tensile GGG50 ductile iron (equivalent to EN-GJS-500-7), engineered to deliver superior mechanical strength, ductility, and pressure containment in water distribution and utility networks. Typically configured in a concentric wafer or lug body with an epoxy-coated disc and resilient elastomer liner (EPDM or NBR), it provides a low-torque, 100% bubble-tight seal under two-way differential pressure. Conforming to standards such as EN 593, ISO 5211, and BS 5155, these economical, durable valves are primary specifications in municipal water supply networks, industrial cooling loops, and HVAC systems, allowing civil contractors and utility managers to secure dependable flow isolation by importing certified GGG50 butterfly valves directly from leading manufacturers in China via our advanced B2B commercial platform.