S504 cam bracket

A water-cooled exhaust is a specially designed exhaust system commonly used in outboards and other marine applications. This type of exhaust pipe reduces exhaust temperature by using cooling water to prevent overheating and protect the engine and surrounding structures. Design and principle of water-cooled exhaust pipe Double-layer structure: Water-cooled exhaust pipes usually have a double-layer structure. The inner layer is responsible for discharging high-temperature exhaust gas, and the outer layer is used to circulate cooling water. This design ensures an effective reduction in exhaust temperature. Cooling water circulation: Cooling water is pumped into the outer layer of the exhaust pipe through the engine's cooling system. After cooling the exhaust gas, the water is discharged overboard. This process can significantly reduce the surface temperature of the exhaust pipe. Material selection: Water-cooled exhaust pipes are usually made of corrosion-resistant materials, such as stainless steel or aluminum alloy. These materials can resist seawater corrosion and extend the service life of the exhaust pipe.Gravity casting is a suitable process for manufacturing water-cooled exhaust pipes. The main reasons include:

Complex shapes: Water-cooled exhaust pipes require precise internal and external structural design, and gravity casting can produce complex-shaped parts to meet this demand.High-Quality Surface: Gravity casting produces a smooth surface that reduces carbon deposits in the inner exhaust pipe and dirt buildup in the outer waterways, improving cooling and component life.Material Diversity: Gravity casting is suitable for a variety of metal materials, especially aluminum alloys and stainless steel, which are often used to make corrosion-resistant water-cooled exhaust pipes.