1. The surface power is large, which is 2 to 4 times the surface load of air heating.
2. Highly dense and compact. Because the whole is short and dense, the stability is good, and no bracket is required for installation.
3. Most of the combined type adopts the argon arc welding method to connect the electric heating tube and the flange, and also can use the form of fastening device, that is, each electric heating tube is welded with fasteners, and then the flange cover is locked with a nut. TIG welding with fasteners will never leak. The sealing part of the fastener adopts a scientific process, and it is extremely convenient to replace a single piece, which greatly saves the maintenance cost in the future.
