api 5000API Blind Flanges dimensions are desned to handle hher rated pressure. We are an API 6a flanges manufacturer. Visit now! For Domestic (for India) Email: sales3@ Phone:API 6A TYPE 6B 5000 PSI Blind pipe flanges are used to seal the end of a piping system or pressure vessel openings to prevent flow.API 6A TYPE 6B 5000 PSI Blind flanges are mainly used for pressure testing the flow of liquid or