Flange coupling for hot water vessel - has pressure ring on flange plate with fixing platform having seating for seal flange and ring

摘要

The flange fixing system is for a hot water accumulator, a water boiler, etc. The hot water vessel has a hole bounded by the edge of the flange. There is a pressure ring gripping over the flange plate and a flange ring gripping over the edge of the flange. A flange fixing unit consists of a fixing platform with flange seating forming an integral part of the vessel. The flange seal, flange and pressure ring fit in the seating on the platform and are held in position by flange bolts. The U-shaped flange ring seats in a recess.