Indoor gas piping installation specifications

1, pipes, fittings, pipe accessories, valves and other materials applied to indoor gas piping, should meet the provisions of the design documents, pre-installation inspection should be carried out in accordance with the current national standards, shall not use the unqualified.
2, on the construction of the project before the installation of indoor gas piping, should be able to meet the requirements of pipeline construction and installation
3, gas pipeline installation should be designed according to the construction drawings for the prefabricated and installed pipelines.
4, gas piping using pipes, fittings and pipe accessories when the design documents do not specify, pipe diameter less than or equal to 50, it is appropriate to use galvanized steel or copper pipe; pipe diameter greater than 50 or use pressure of more than 10kPa, should meet the standard
5, gas pipeline construction, to avoid the body of the pipe weld facing the wall, the weld is not obvious pipeline should be marked in advance
6, concealed buried in the wall of copper or stainless steel corrugated pipe, should use a special chiseling machine slotting. The width of the groove should be the outer diameter of the pipe plus 20mm, and the depth should meet the requirement of covering the thickness of not less than 10mm. It is strictly forbidden to cut pipe grooves in load-bearing walls, columns and beams.