How to paint the pipeline

1. After installation and pressure test of galvanized steel pipes, water supply and drainage pipes shall be coated with a layer of silver powder, while water supply cast iron pipes, drainage cast iron pipes and steel pipes shall be coated with a layer of Danyou and two layers of silver powder. Buried pipelines should be coated with two layers of epoxy asphalt paint. 3. Thick slurry epoxy coal tar pitch anticorrosive paint CH2 is used for the outer wall of the fire fighting pipeline of the oil depot fire fighting pump room, and reinforced anticorrosive paint is used for the inner wall of the pipeline, and epoxy resin 036 is painted twice. 4. Use the fire pipes in the oil depot. After derusting the buried fire-fighting pipeline, brush two layers of red lead phenolic antirust paint and two layers of asphalt paint. After derusting, the exposed foam fire hose should be coated with two layers of red lead phenolic antirust paint and two layers of red phenolic enamel.