Explain the flange plate of the electric heating pipe

Explain the flange plate of the electric heating pipe

The flange plate in the flange electric heating tube is abbreviated as a flange, which is just a general term. It usually refers to several fixed holes opened around a similar disc-shaped metal body to connect with other equipment. Flange plates are the most common in pipeline engineering and are usually used in pairs. The main domestic standards are GB/T9119, HG20593 JB/T81-94, and other specifications.

In pipeline engineering, flanges are primarily used for the connection of pipelines. In pipelines that require connection, various devices can use a single flange. Low pressure pipelines with electric heating pipes can use threaded flanges, and welding flanges can be used for pressures above 4 kilograms. Add a sealing gasket between the two flange plates and tighten them with bolts. Flanges with different pressures have different thicknesses and use different bolts.

The bolts on the flange plate in the flange type electric heating pipe are required to be tightened and exposed in three or two buckles according to regulations. The gaskets on the flange plate are made of rubber, rubber, metal, and PTFE. Usually, rubber is used for cold water, asbestos is used for hot water, and metal is also used.

The spacing between the two holes for threading the lead wire is really too close. The orientation of the heating zone has moved towards the outlet port and is exposed to the air. A sufficient and necessary condition for a short circuit to occur due to excessive temperature and additional voltage from two outgoing lines.

When used, the aperture of the mold hole is shaped like a horn, which is due to the shortcomings of module drilling technology, which affects heat conduction. The nozzle presents a powdery appearance at the end of the outlet wire, which then affects thermal conductivity and air breakdown. The gap between the defective sealing silicone of the electric heating tube and the top screw at the root of the lead wire is too close, which is when manufacturing technology occurs. Using iron chromium aluminum as the lead wire has an excessive electrical resistivity to increase the temperature of the lead wire and cause problems.

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