L/LL/KL/G Fin Tube

- L fin: This is a low fin that is used to increase the heat transfer surface area of the tube. The fins are typically spaced close together to maximize surface area.- LL fin: This is a type of low fin that has a wider fin spacing than L fins. This type of fin is used when there is a risk of fouling or corrosion.- KL fin: This is a knurled fin that is used to increase the turbulence of the fluid flowing over the tube. This helps to improve heat transfer.- G fin: This is a type of fin that is shaped like a G. It is used to increase the heat transfer coefficient and improve the efficiency of the heat exchanger.