Titanium pipelines transport flammable, explosive, toxic, and corrosive media, which is very unsafe. Therefore, the requirements for titanium pipe fittings are higher. At present, in our country, titanium pipelines have been widely used in chemical, petrochemical, pharmaceutical, marine engineering, and other industries. It is widely used in severely corrosive media, such as ion-exchange membrane caustic soda, propylene oxide engineering, and formic acid, acetic acid, and methane chloride, and other engineering projects. Titanium pipelines are used to transport media to solve the problem of pipeline corrosion.
Our country began to use titanium in the chemical system of civil industry in the 1970s. The life of the titanium pipeline depends on the fittings, especially the standardization of titanium fittings is more important.
In the initial stage of the use of titanium pipelines in my country, there was no domestic manufacturer to produce standard titanium pipe fittings, so people had to use multi-welded titanium elbows, and its processing technology was complicated. Usually, the pipe is cut into multiple sections of oblique openings, welded, or the sheet metal is laid down into a multi-section leaf-shaped unrolled material, and then rolled and welded, and the amount of welding seam is large. Due to the discontinuous geometry of the welding joints, a higher stress concentration will be generated. Therefore, strict regulations must be made on the working pressure and working temperature of this kind of pipe fittings. Welds will greatly reduce corrosion resistance, are easy to leak, and have a poor appearance. The inner surface is folded, which increases the transmission resistance of the pipeline, and the welds on the back are severely eroded and corroded, which reduces the life.
BaojiTaichengMetalCo.,Ltd is a professional titanium elbow 180 degree factory and manufacturers. If you have relevant requirements, we will definitely customize products that satisfy you. The following are some of the precautions for using titanium pipe fittings, I hope they will be helpful to you.
(1) In order to ensure the life of the pipeline, seamless pipe fittings should be the first choice for titanium pipe fittings, and the elbow should be produced by pushing technology as far as possible to ensure uniform wall thickness and smooth surface.
(2) It should be avoided to choose shrimp waist elbows and tee joints that directly weld straight pipes in the pipeline. The titanium pipeline connected by this method will seriously affect the life of the titanium pipeline.
