SMF Flangetech offers Blind Flanges for Pressure Vessel Openings. SMF Flangetech manufactures Carbon Steel Plate Flanges in all international standards. Flanges are made in international Standards like AWWA, DIN, BS, JIS and CZECH. The Blind Flanges for Pressure Vessel Openings are used to close the ends of valves, pipes and other channels where one end needs to be blocked. The Blind Flanges are made with top quality raw material and are high on durability and performance.