Double flange limit telescope

Double flange limit expander physical properties of high quality, saving metal materials; engineering construction simple comprehensive project budget economic development, high stability, security power supply collection station; good corrosion resistance, long service life. Its tensile strength is greatly better than gray cast iron pipe, by anti-corrosion solution thick, the service life can do 3-5 times of seamless steel pipe. Installation is convenient, simple, suitable for engineering construction in different landscapes and climates, simple installation can greatly accelerate the construction progress, reduce project costs, is commonly used in drinking water, natural gas pipeline, demand for cast iron drainage pipe production accounted for more than 90%.
Chemical manufacturing industry on the double flange limit telescope: all likely to touch with water and external gas telescope machine and equipment surface, metal structure and pipeline should be engaged in anti-corrosion solution, anti-corrosion process treatment contains at least anti-rust treatment, do top coat, do anti-corrosion materials and do paint, plating should be applied to the sewage pump room office environment, operating temperature of not less than 100 ℃, anti-rust treatment regulations: Sa21/ 2, building coating system software: full immersion position selected epoxy resin epoxy primer one coat, paint layer thin 40μm, epoxy resin leaching anti-corrosion paint two coats, paint layer thin 250μm; between immersion position selected butadiene ester epoxy glass scale building coating, top coat two degrees, paint layer thin 175μm, paint two degrees, paint layer thin 175μm; air position selected polyethylene fluorescence Dan building coating, top coat three degrees , paint three degrees, total wet film thin thickness 180mu, commonly used a variety of architectural coatings operating procedures and architectural coatings thin thickness shall comply with the corresponding standards and regulations.
The metal structure of the telescope and the tube used in the telescope finish, anti-corrosion materials and paint should be qualified products and have the manufacturer's quality assurance qualification certificate. All the metal structure of double flange limit telescope maintenance, engineering construction and work standards should be in line with BS5493, all spraying metal surface should be dry, no dust, the appearance of the temperature is less than 40 ℃, in the wet and cold climate does not allow spraying engineering construction.