Processing of plastic insulated steel pipe with inner coating

The application of internal coated plastic insulation steel pipe is very common, its production process is very careful, for the application in the construction industry is still relatively common, what is the production process, we can all understand

nternal plastic coated insulation steel pipe production steps

Before the construction of the project, carefully understand the design, according to the technical plan of the project construction method and safety disclosure of the corresponding measures to make preparations, refer to the relevant technical equipment drawings and decoration building drawings

Check whether the coordinates and heights of all types of coated pipes overlap, and whether the layout of the common indoor space of coated pipes is appropriate. If there is any problem, discuss with the design and relevant staff as soon as possible, and handle the change negotiation record.

According to the drawings, draw the construction sketches of plastered pipeline lines, pipe diameters, reducing diameters, embedded pipe mouths, valve parts, etc., and mark the structural parts of the specific assembly

The precise specifications of the specific assembly are measured out according to the identification segment, recorded on the engineering construction sketch, and then the prefabricated parts are produced and processed according to the specifications measured by the sketch.

Plastic coated pipe assembly is usually gradually controlled from the main entrance, the end of the main port should have a temporary wire plug for pressure test, and the pipe and pipe fittings should be inspected before assembly

The inside and outside surface should have a perfect galvanized layer, and it should be smooth and beautiful, and the inside and outside surface of the pipe fitting should be smooth, no sand holes, and no thread breakage and lack of thread.

Thread connection is selected for plastic-coated pipe connection, and corrosion prevention should be done for the damaged galvanized layer surface and exposed thread parts when the thread is covered.

When the thread connection is selected, the plastic coated pipe should be cut mechanically, and the cutting surface should not have rough edges, and the cutting should ensure that the tube end face is vertical. The threading machine should be selected, the grease should be lubricated, and the standard thread gauge should be selected for testing. During production and processing, attention should be paid to the cooling of the pipe body, and the pipe can not be heated up

Transportation and storage

During transportation, do not throw or hit the plastic coated steel pipe. The plastic coated pipe should be stacked in a straight room or a cool place.

When stored in an open place, it should be covered with a canopy and kept away from heat and fire sources. Do not place in direct sunlight and cold for a long time, and do not mix with toxic and harmful substances.