FRPP tube (glass fiber reinforced polypropylene tube) glass fiber treated by coupling agent modified with polypropylene material production, according HG20539-92 standards, specifications De15-De1500mm, nominal 0.4-1.0MPa, corrosion resistance, high temperature, high pressure, health non-toxic, recyclable, suitable for corrosive liquids (such as acid solution) and municipal water supply and drainage systems. Has a more excellent impact resistance and tensile strength, light weight, easy installation and maintenance, Heaven, Earth, using the improved quality PP FRP added to the resin, so that the physical connection between FRP and PP fusion is more stable, after years of research and development of improved test FRPPH tube. FRPP pipe because of its unique properties are widely used in chemical industry, chemical fiber, chlor-alkali, dyes, water, food, medicine, sewage treatment, electrolysis and other industries. ◇ ----- long life at rated temperature and pressure condition, FRPP pipe can be used safely for more than 50 years. ◇ excellent corrosion resistance ----- FRPP pipe corrosion resistance to most chemicals, can withstand 1-14 PH range in high concentrations of acid and alkali corrosion in a wide range. ◇ higher stiffness ----- due to the addition of glass fiber reinforced materials make FRPP pipe deformation. ◇ heat pipe thermal insulation ----- FRPP maximum use temperature of 95 degrees, the thermal conductivity of the product is only 1/200 of steel, it has good insulation properties. ◇ reliable connectivity ----- FRPP pipe hot melt strength of the interface is higher than the pipe body seams will not load due to soil movement or action disconnected. ◇ good workability ----- FRPP tube light, welding process is simple, convenient construction, engineering, and lower total cost. Hot air welding electrodes ◇ FRPP pipe connections must ensure that the chemical composition of the material pipe welding strength requirements. When ◇ hot air welding, heating temperature should meet the following requirements: 190-240 ℃ ◇ Welding electrodes and the surface must be clean, clean. ◇ rods and pipes must be welded in a molten state, there should be no burning and decomposition phenomenon. ◇ welds should be closely aligned, there should be no gaps. ◇ weld surface should be smooth and should not have corrugated and welding Chuimao phenomenon. ◇ weld strength not less than the strength of the design requirements. ◇ welds should be naturally cooled. ◇ When FRPP pipe Butt Butt pipe heating temperature should meet the following requirements: 190-240 ℃ ◇ Butt when the butt of the tube level fixed in the fixture docking device, so two connecting tubes remain horizontal position and two to be on a good center. ◇ hot melt welding equipment for collusion regulate the temperature. ◇ fusing temperature control and hot-melt time based on the pipe material. And to maintain a certain docking thrust. ◇ Butt connecting surfaces should be naturally cooled.