PN40 Raised face slip-on bossed welding forged flanges to BS EN 1092-1:2018 (previously BS 4504), also known as type 12 slip-on flanges are available here on our website in sizes 1/2" (15mm) and 8" (200mm) nominal bore.
These bossed flanges are all made of S235JR mild steel and come with a raised face which increases pressure on the gasket for a stronger seal, they’re also available full 3.1 mill test certification upon request. Slip-on bossed flanges are usually fillet welded to steel pipe or tube, these PN40 flanges are 40 bar pressure rated and have an operating temperature range of -10°C - 475°C.