M&J Trunnion Mounted Ball Valve. The M&J Ball Valve is a three piece bolted body design, with internal trunnion blocks. The ball valve that provides an attractive solution for positive shut off requirements in. oil & gas pipelines. ProduCt Benefits and features: three Piece Bolted Body. The M&J Ball Valve is a three piece bolted body design.
Water boils at 100Â°C at standard pressure, no exceptions! However, the water temperature in the kettle is not even. Around the heating elements, the water rapidly reaches 100Â°C, even if the water in the rest of the kettle is cooler.
As long as you are talking about a normal pot with or without a normal lid (i.e. not a pressure cooker) and you are reasonably close to sea level, you're right, boiling water is at 100Â°C. However, if you start to climb in altitude, that is no longer the case, at 300m, water boils at 99Â°C, at 600m, 98Â°C and so on. Wikipedia has a page with information about High altitude cooking that contains a reference table.