What safety precautions should be paid attention to in the production of integral raised flange?

What safety precautions should be paid attention to in the production of integral raised flange?

Integral raised flange is also called flange or flange. The flange is the component that connects the pipe to the pipe and valve, and to the end of the pipe. There are holes in the integral raised flange, and the bolts make the two flanges tightly connected. Seal flange with gasket. The flange is connected by threaded flange, welding flange and ferrule flange.

Integral raised flange is a kind of flange connection. It is also a neck butt welded steel pipe flange. Materials are carbon steel, stainless steel, alloy steel, etc. In various domestic standards, intermediate frequency is used to represent integral flange. They are mainly used in pipes with high pressure. The production process is usually casting.

In flange type, "intermediate frequency" is used to indicate the type of integral flange. Generally speaking, it is a convex surface. In case of inflammable, explosive and highly dangerous working conditions, the sealing surface of convex concave surface (MFM) and tenon and groove surface (TG) can be selected instead of RF surface.

Safety issues of integral raised flange production

1. In the process of construction and repair, the workshop technicians should be present.

2. The labor protection appliances, construction tools and workplace of integral lifting flange should be free from oil pollution, and secondary pollution should be prevented. Buffer bolts should be degreased.

3. The degreasing place should be ventilated, clean and free of rain and dust.

4. After degreasing, remove the surface solvent until there is no residual liquid and smell, and wrap it with clean oil-free plastic cloth for future use.

5. Cotton yarn should not be used for scrubbing degreased parts. After degreasing, silk and glass fiber fabrics containing fibers that are not easy to fall off should be carefully inspected. There should be no fiber adhesion on the surface of degreased parts.

6. The disconnected flange shall be constructed continuously until the completion, and the construction personnel shall not leave the site during the construction.