OUWEI grooved butterfly valves match standard fire pipe groove couplings, cutting installation time by 60% compared with flanged valves. Ductile iron body with fire-resistant EPDM seat, stable sealing under fire water pressure. Manual handwheel and electric actuator configurations available, fully compliant with international fire safety standards. Perfect for high-rise building fire protection, shopping mall fire control pipelines. #OUWEI #GroovedButterflyValve #FireFightingValve #FireSuppression #BuildingFireSafety #PipelineFittings
