During the assembly and storage of sanitary fittings, the nut should not be tightened too tightly, otherwise it will be screwed to death and can not be unscrewed again. Nowadays, the demand for products is increasing day by day, so the manufacturers of products have increased a lot, and the specifications and models of products can also be customized.
But when you buy a product, you can't choose it because it's cheap or expensive, but you should visit more than one company so that you can choose the right product.

Sanitary pipe fittings are parts of the system connected to the pipeline, and the required parameters are very standard. Usually, the sleeve is taken as the unit of measurement, which is a complete set of system. A complete set of union should include four parts: nut, flat joint, cloud head and gasket.

When assembling sanitary union pipe fittings, the first step we need to do is to place the butt joint in the nut, then install a special washer in the groove of the cloud head, and finally screw the cloud head into the nut, so that a complete set of union pipe fittings can be assembled. After the completion of assembly, welding method is needed to connect the pipe of the pipeline system. During welding, the operator needs to have excellent technology to avoid loopholes or welds during welding, which will bring inconvenience to the subsequent work.

If there are surface defects of raw materials for sanitary pipe fittings, such as scratches, pitting, over pickling, etc., the hardness of raw materials of sanitary pipe fittings is too low, and it is not easy to polish when polishing (BQ property is not good). Orange peel phenomenon is easy to appear on the surface during deep drawing, which will affect BQ property, which will lead to the failure of normal operation of sanitary pipe fittings. Therefore, BQ property with high hardness should be relatively good, so when purchasing Wait for the instructions and comments from other customers.

Sanitary pipe fittings should be separated from other metals during transportation, and non-metallic materials such as wood and rubber products can be padded for isolation, so as to avoid direct contact between metal and metal. When it is continuously welded, the temperature should not be too high, and it should be kept at about 60 degrees. During the positioning welding, the welding seam should be filled with argon for protection. In our daily use, there will inevitably be some problems.

1. Hardness exceeding standard: the problem of hardness exceeding the standard is mainly caused by the heat treatment process after forming. The solution is to conduct heat treatment again with correct heat treatment process.

2. Inspection before delivery and after arrival of sanitary pipe fittings

3. Uneven wall thickness of sanitary pipe fittings: the uneven wall thickness of sanitary pipe fittings mainly occurs in the parts with the largest deformation, such as the wall thickness at the back of elbow is thinner than other parts, and the wall thickness of pipe orifice and pipe fitting body is not equal. In order to check out these problems, calipers and other commonly used measuring tools are not easy to detect. At this time, only ultrasonic thickness gauge can be used.

As the last process to ensure the quality of sanitary pipe fittings, the inspection plays an important role, especially for the pipe fittings bearing high temperature and high pressure and flammable and toxic media, the inspection process is particularly important.

Sanitary pipe fittings are parts of the system connected to the pipeline, and the required parameter standards are required. Usually, the unit of measurement is set, and there are many models of products. Sanitary pipe fittings are a complete set of system, and the whole Union should include nut, butt joint, cloud head and gasket.