Discover top-quality China adaptor flanges from a leading manufacturer offering sizes ranging from 1 to 16 inches, with pressure ratings spanning from 300 to 750 PSI (1.6 to 2.5 MPA). Crafted from durable ductile iron meeting ASTM A536 Grade 65-45-12 standards, these flanges come with FM, UL, and CE certificates, featuring grooved ends for easy installation. Upgrade your systems with reliable, certified flanges for enhanced performance and peace of mind.