Different from plastics and traditional materials, the pace of technological advancement is faster, and the emergence of new technologies, new materials, and new processes has made the advantages of plastic pipes more traditional than traditional materials. Compared with traditional metal pipes and cement pipes, plastic pipes are light in weight, generally only 1/6-1/10 of metal pipes, have good corrosion resistance, impact resistance and tensile strength, and inner surface ratio of plastic pipes. The cast iron pipe is smooth, the friction coefficient is small, the fluid resistance is small, the water consumption energy can be reduced by more than 5%, the comprehensive energy saving is good, the manufacturing energy consumption is reduced by 75%, the transportation is convenient, the installation is simple, and the service life is up to 30-50 years. . Polyethylene pipes have developed rapidly in countries all over the world in the past 10 years. Developed countries have taken an absolute advantage in the application of polyethylene pipes in the water supply and gas fields. Polyethylene pipes are not only used to replace traditional steel pipes, cast iron pipes, etc., but also replace PVC pipes. The reason is the innovation of polyethylene pipe technology in the past 10 years. On the one hand, the material has made significant progress. Through the improvement of the polyethylene polymerization production process, the strength of the polyethylene pipe material has almost doubled. On the other hand, there are new developments in application technology. For example, in recent years, there is no need to excavate pipe trenches. The technique of laying polyethylene pipes by directional drilling method gives full play to the superiority of polyethylene pipes, making traditional pipes suitable for this method. There is no competitive ability at all.
Plastic pipe fittings use standards:
Aluminum-plastic composite pressure pipe aluminum pipe lap welding aluminum-plastic pipe GB/T 18997.1-2003
Aluminum-plastic composite pressure pipe aluminum pipe butt welded aluminum-plastic pipe GB/T 18997.2-2003
Chlorinated polyvinyl chloride (PVC-C) piping systems for industrial use - Part 1: General GB/T 18998.1-2003
Industrial chlorinated polyvinyl chloride (PVC-C) piping systems - Part 2: Pipes GB/T 18998.2-2003
Chlorinated polyvinyl chloride (PVC-C) piping systems for industrial use - Part 3: Pipe fittings GB/T 18998.3-2003
Thermoplastic pipes and fittings for hot and cold water systems GB/T 18991-2003
Cross-linked polyethylene (PE-X) piping systems for hot and cold water - Part 1: General GB/T 18992.1-2003
Cross-linked polyethylene (PE-X) piping systems for cold and hot water - Part 2: Pipes GB/T 18992.2-2003
Chlorinated polyvinyl chloride (PVC-C) piping systems for hot and cold water - Part 1: General GB/T 18993.1-2003
Chlorinated polyvinyl chloride (PVC-C) piping systems for hot and cold water - Part 2: Pipes GB/T 18993.2-2003
Chlorinated polyvinyl chloride (PVC-C) piping systems for hot and cold water - Part 3: Pipe fittings GB/T 18993.3-2003
Determination of the stiffness of thermoplastic pipe rings (instead of GB/T9647-88) GB/T 9647-2003
Test method for internal pressure resistance of thermoplastic pipes for fluid transport (instead of GB/T 6111-1985) GB/T 6111-2003
Plastics -- Determination of tensile properties of thermoplastic pipes - Part 1
(Replaces GB/T 8804.1-1988, GB/T 8804.2-1988) GB/T 8804.1-2003
Thermoplastics pipes - Determination of tensile properties - Part 2: s. s. s. s.
Polyvinyl chloride (PVC-HI) pipe (in place of GB/T 8804.1-1988, GB/T 8804.2-1988) GB/T 8804.2-2003
Thermoplastics tubes - Determination of tensile properties - Part 3
(Replaces GB/T 8804.1-1988, GB/T 8804.2-1988) GB/T 8804.3-2003
Stainless steel plastic composite pipe town construction industry product standard CJ/184-2003
Polypropylene pipe system for hot and cold water, part 1 , general GB/T18742.1-2002
Polypropylene pipe system for hot and cold water, part 2, pipe GB/T18742.2-2002
Polypropylene pipe system for hot and cold water, part III, pipe fittings GB/T18742.3-2002
High-density polyethylene outer tube polyurethane foam prefabricated direct buried insulation pipe CJ/T 114-2000
High-density polyethylene (HDPE) pipe for water supply GB/T13663-2000
Hard polyvinyl chloride for water supply
Core layer foamed hard polyvinyl chloride (PVC-U) pipe for drainage GB/T16800-97
Hard PVC pipe for water supply GB/T10002.1-96
Buried polyethylene pipe for gas GB/T15558.1-95
Buried polyethylene pipe fittings for gas GB/T15558.2-95
Hydraulic instant blasting and pressure test method for plastic pipes for liquid transportation GB/T15560-95
Pull-out test for connection of polyethylene pressure pipe and pipe fittings GB/T15820-95
Hard polyvinyl chloride (PVC-U) double wall corrugated pipe QB/T1916-93
Polypropylene (PP) pipe for water supply QB/T1929-93
Test method for external impact resistance of thermoplastic pipes - Real impact method GB/T14152-93
Hard plastic drop hammer impact test method General GB/T14143-93
Low density polyethylene (LDPE, LLDPE) pipe for water supply QB/T1930-93
Hard polyvinyl chloride (PVC-U) pipe methylene chloride impregnation test method GB/T13526-92
Hard polyvinyl chloride pipe for building drainage GB/T5836.1-92
Hard polyvinyl chloride pipe for building drainage GB/T5836.2-92
Polyethylene (PE) pipe outer diameter and wall thickness limit deviation GB/T13018-91
Polypropylene (PP) pipe outer diameter and wall thickness limit deviation GB/T13019-91
Hard polyvinyl chloride (PVC-U) pipe outer diameter and wall thickness limit deviation GB/T13020-91
Thermoplastic pipe universal wall thickness gauge GB/T10798-89
PVC plastic corrugated wire tube ZB/T G33008-89
Plastic pipe size measurement method GB/T8806-88
Polyethylene (PE) pipes and fittings according to the method of nominal density and melt flow rate of polyethylene GB/T9642-88
Polyethylene (PE) pipes and fittings - Melt flow rate test method GB/T9643-88
Extraction method and allowable value of lead, tin, cadmium and mercury for hard polyvinyl chloride (PVC-U) drinking water pipes and fittings GB/T9644-88
Test method for water absorption of rigid polyvinyl chloride (PVC-U) pipe fittings GB/T9645-88
Test method for acetone resistance of rigid polyvinyl chloride (PVC-U) pipes GB/T9646-88
Test method for falling of rigid polyvinyl chloride (PVC-U) pipe fittings GB/T8801-88
Test method for softening temperature of hard polyvinyl chloride (PVC-U) pipes and fittings GB/T8802-88
Test method for hot oven of injection molded hard polyvinyl chloride (PVC-U) pipe fittings GB/T8803-88
Hard plastic pipe bending method GB/T8805-88
Hard PVC pipe for water supply GB/T10002.2-88
Hard polyvinyl chloride (PVC-U) pipe for buried sewage and wastewater GB/T10002.3-88
Plastics -- Determination of the density of polyethylene pipes and fittings - Part 1 : Determination of basis density of polyethylene pipes and fittings GB/T 7155.1-
87
Plastics -- Determination of density of pipes and tubes -- Part 2: Determination of reference density of polypropylene pipes and fittings GB/T 7155.2
87
Determination of longitudinal retraction rate of rigid polyvinyl chloride (PVC) pipes GB/T6671.1-86
Determination of longitudinal retraction rate of polyethylene (PE) pipes GB/T6671.2-86
Determination of longitudinal retraction rate of polypropylene (PP) pipes GB/T6671.3-86
Test method for impact resistance of thermoplastic pipes and fittings GB/T6112-85
PTFE pipe ZB/T G33001-85
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