What are the technical requirements for elbows in engineering projects?

What are the technical requirements for elbows in engineering projects?

1. Since most of the pipe fittings are used for welding, in order to improve the welding quality, the ends are beveled, with a certain angle and a certain side. This requirement is also strict, how thick the side, how much angle and deviation The scope is stipulated. The surface quality and mechanical properties are basically the same as the pipe. For the convenience of welding, the steel grade of the pipe fitting and the pipe being connected is the same.

2. All pipe fittings must undergo surface treatment, and the oxide scale on the inner and outer surfaces shall be sprayed off by shot blasting, and then coated with anticorrosive paint.

3. For the packaging requirements of small pipe fittings, a wooden box is required, about 1 cubic meter, and the number of elbows in this box cannot exceed one ton. Sets are allowed, that is, large sets and small sets, but the total weight generally cannot exceed 1 ton. . For large-diameter elbows, single packaging is required, such as 24″ must be individually packaged. The other is the packaging mark, which must indicate the size, steel number, batch number, manufacturer’s trademark, etc.

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