the inner and outer plastic-coated epoxy resin steel pipes are suitable for water supply and drainage, drinking water, clean water, seawater, warm water, oil, gas, and other media transportation. the inner and outer surfaces of the steel pipe or only the outer surface can be coat

coated steel pipe requirementsthe coating layer should be smooth and flat, free from scratches, cracks, pinholes, and adhesion of foreign matter and other defects. the outer coating of the steel pipe shall be red. there should be a clear and durable mark on the coated steel p

both plastic-coated steel pipes and coated steel pipes are coated steel pipes, but their coating methods are different. plastic-coated steel pipes are coated with molten plastic on the surface of steel pipes to form a uniform plastic coating. this coating has good corrosion resis

1. weld seam defects: weld seam defects are serious, and manual mechanical grinding is used to make up for them. the resulting grinding marks will cause uneven surfaces and affect the appearance. pickling and passivating only the weld seam also creates an uneven surface.

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plastic-coated steel pipe is suitable for the working environment of -30°c-120°c. compared with other metal pipes, plastic pipes, and composite pipes, it combines the characteristics of various pipes. it has both the strength of steel pipes and the corrosion resistance of plastic

epoxy resin-coated steel pipes inside and outside first pre-treat the base pipe--grind the steel pipe (advantages: automatic spraying makes the inner and outer walls of the base material evenly coated, and the leveling property is good. it meets the cj/t120-2008 standard and gb/t

as we all know, plastic-coated steel pipes can be used not only in the field of water supply and drainage but also in the field of automatic sprinkler fire extinguishing systems, groundwater sewage dredging pipes, central air-conditioning cooling circulating water pipes, cable th

plastic-coated steel pipe is a new type of pipeline material recently developed in china. it adopts a composite structure with a plastic-coated protective layer inside and outside, and a reinforced welded steel pipe or seamless pressure-bearing steel pipe in the middle, which ove

plastic-coated steel pipes, also known as plastic-coated pipes, steel-plastic composite pipes, and plastic-coated composite steel pipes, use steel pipes as the substrate and weld a layer of plastic anti-corrosion layer or steel-plastic composite steel pipe with plastic anti-corro

1. distinction in use:plastic-lined steel pipes are usually divided into plastic-lined steel pipes for cold water and plastic-lined steel pipes for hot water;plastic-coated steel pipes are usually divided into plastic-coated steel pipes for water supply and plastic-coated st

comparison of plastic-coated steel pipes and 3pe anti-corrosion steel pipes 2023-05-06 10:14 plastic-coated steel pipe, also known as steel-plastic composite pipe and plastic-coated composite s

if the inner and outer plastic-coated steel pipes are fully coated, no anti-corrosion oiling is required. if the inner plastic-coated steel pipes are only used for heat preservation, no anti-corrosion oiling is required. if the inner plastic-coated steel pipes are directly expose

the plastic coated steel pipe is composed of a core pipe rent-reducing layer, fastening steel belt, air layer, heat insulation layer, reflective layer, sliding bracket, outer protective steel pipe, sprayed polyurethane, and surrounding entangled frp. it has high strength, is not

the real epoxy resin coated steel pipe is the anti-corrosion macrostructure of the pipe. it uses electrostatic adsorption to electrostatically adsorb the modified epoxy resin powder on the inner and outer walls of the steel pipe. usually, companies that can say the same name are

1. coating adhesion of coated steel pipe: the adhesion of the polyethylene coating layer is ≥30n/cm, and the adhesion of the epoxy resin coating is 1~3.2. bending performance: no cracks will occur after bending the steel-plastic pipe with a nominal diameter not greater th

1. weld seam defects of plastic-coated steel pipes: weld seam defects are serious, and manual mechanical grinding is used to make up for them. the resulting grinding marks will cause uneven surfaces and affect the appearance. pickling and passivating only the weld seam also creat

mine plastic coated steel pipe has the following characteristics:(1) flame retardant and antistatic: the product is made of polyethylene coating for mining, and its antistatic and flame retardant components are evenly distributed on the surface and inner layer o