API SPEC 5L line pipe

API SPEC 5L steel pipeline is connected with pipes, pipe couplings and valve used for conveying gas, liquid or solid particles in the fluid of the device. Usually, the fluid by the blower, booster compressor, pump and boiler pressurized flow of the low pressure area to the API line pipes of high pressure, also can use the fluid pressure of gravity conveyor. API seamless line pipes has a wide range mainly used in water supply, drainage, heat supply, gas supply, long distance oil and gas transportation, agricultural irrigation, hydraulic engineering and various kinds of industrial equipment.



When the fluid flow is known, the size of line pipe diameter depends on the velocity or to allow frictional resistance. Diameter is small when velocity is large, but the pressure drop value is increasing. As a result, the large velocity can save a large API SPEC 5L line pipe infrastructure investment, but the power equipment operation such as pumps and compressors energy costs increase. Additionally, if the flow rate is too large, there may bring some other unfavorable factors. Therefore, the pipeline diameter should be considered decisions depending on the construction investment, operation cost and other technical factors. The connection method of pipe, pipe connecting parts, valves and equipment in and out, are controlled by fluid nature, pressure and temperature as well as pipe factors like material, size and installation site.

The line pipe should avoid crossing with road, railway and waterway on the ground. When unavoidable crossing, the height should allow the safe of pedestrians and travel. Underground the API SPEC 5L line pipes laid along the roads in general to maintain proper distance between the various channels for the installation and maintenance; surface heating pipe has insulation laid in the trench or protection tube, should avoid being crushed and the soil so that the pipelines can be expanded mobile.