Product Name: Ductile Iron Flexible Joint, Water Solution, Water Treatment
Standard: ASME B16.5
Material: Ductile Iron GGG50
Size: 6 Inch
Pressure Rating: Class 150 LB
Ends: RF Flanged
Service: Fire Tank Piping Connection System

Source: https://www.landee.cn/ductile-iron-flexible-joint-asme-b16-5-ggg50-6-in-150-lb.html