High temperature resistant non electric ball valve is a non electric ball valve with strong sealing performance, heat resistance, corrosion resistance and high structural strength. High temperature resistant non electric ball valve is composed of a main frame, a sub frame and a skin. The main frame is rectangular. A sub frame is installed on the outside of the main frame. The sub frame is composed of two plates. A skin is installed between the lower ends of the two plates. The skin is made of multi-layer materials.
High temperature resistant non electric ball valve is a kind of non electric ball valve with sealing performance, heat insulation function, strong corrosion resistance and high structural strength. The electric ball valve does not need maintenance within the limits of normal use, and is more convenient to replace than the electric ball valve. The high temperature resistant electric ball valve also includes a secondary frame, a pouring baffle and a number of anchor nails. A secondary frame and two pouring baffles are installed inside the main frame, The secondary frame is composed of two inverted L-shaped plates. The casting baffle is located at the front and rear sides of the secondary frame and closely matches with the secondary frame. The anchor nails are located at the front and rear sides of the casting baffle and fixed on the main frame. They are used to fix the refractory materials filled at the front and rear sides of the casting baffle on the main frame. The equipment is filled with thermal insulation materials. When installing the high-temperature electric ball valve, it is required to cast wear-resistant and fire-resistant castables on its inner side. In order to make the casting more solid, pins can be configured on the inner side of the inner sleeve, middle sleeve and outer sleeve. The electric ball valve in the early stage is mainly used for the corrosive flue gas channel. With the progress of technology, the non electric ball valve has been able to withstand high temperature and high pressure, and it has more significant advantages than the electric ball valve, and its application fields are more and more common.
Non electric ball valve has been widely used in the smoke exhaust pipe system of large power plant boilers today, such as the inlet and outlet of air preheater, inlet and outlet fans, fan system, electrostatic precipitator, original flue, the main air system of the clean flue gas desulfurization system, two air systems, the import and export of coal mill, etc. The advantage of electric ball valve is that it can absorb large differential and torsional deflection angle in a very compact space, and can operate well under various working conditions. The electric ball valve does not need maintenance in the normal use range, and it is more convenient to replace than the electric ball valve. This is more significant for large electric ball valves.