The purpose of Pipeline Internal Coating

The purpose of Pipeline steel pipe internal coating are two
1:it is resistant to corrosion of oil and gas,
 2 it is to improve the efficiency of the flow. 
Because of the large steel pipe inner surface roughness, coating can decrease the flow resistance of medium to reduce power consumption, reduce transportation costs and can increase pressure pump station spacing, to save the engineering investment. Water pipe inside coating in addition to improving the efficiency of the flow, when the tap water, do not lower the quality of drinking water, not dissolved zinc impurities such as water pollution. General large diameter wall with mortar, small diameter tube plastic coated after galvanizing. Steel pipe pile pipe is not inside coating, coating outside to improve the corrosion resistance. Oil well pipe internal coating to increase resistance to oil, gas, corrosive, outside also to corrosion resistant coating. There are natural resin coated material, the type of solvent synthetic resin coating, synthetic resin, inorganic matter (cement slurry) and metals (zinc, aluminum plating, Galfan galvanized aluminum alloy), etc.Coating steel pipe is your choice.