Specification of titanium pipe used in seawater desalination

Titanium pipes are commonly used in seawater desalination plants due to their excellent corrosion resistance and durability in harsh marine environments. When selecting titanium pipes for seawater desalination, there are several important specifications to consider, including:

1. Grade: Titanium Grade 2 is the most commonly used grade for seawater applications due to its excellent corrosion resistance and cost-effectiveness. However, Grade 7 and Grade 12 may also be used in certain cases where higher strength and corrosion resistance are required.
2. Size: The size of the titanium pipe will depend on the flow rate and pressure requirements of the desalination plant. Standard sizes range from 1/2 inch to 24 inches in diameter.
3. Wall Thickness: The wall thickness of the titanium pipe is important to ensure that it can withstand the high pressures and stresses associated with seawater desalination. Typical wall thicknesses range from 0.065 inches to 0.250 inches.
4. Surface Finish: The surface finish of the titanium pipe is important to prevent fouling and corrosion. A smooth, polished surface is recommended to minimize turbulence and improve flow efficiency.
5. Connection Type: The connection type of the titanium pipe will depend on the specific application and equipment being used. Common connection types include butt weld, socket weld, and flanged connections.
6. Certification: It’s important to ensure that the titanium pipe is manufactured to the appropriate industry standards and specifications, such as ASTM B338 or ASME SB-338.

Tips of welding in titanium piping for desalination

Since 1975, our engineers have been researching the application of titanium in seawater. We are well aware of the importance of welding titanium pipes for seawater desalination. Titanium pipes play a vital role in seawater desalination and need to be connected by welding to form a complete piping system. Here are a few important tips we offer for welding in titanium piping for desalination:

Welding quality has an important impact on pipeline performance and reliability, which determines the leakage and failure rate of pipelines.

Titanium is easy to oxidize at high temperatures, which will make the titanium material brittle and affect the service life of the pipeline. During the welding process, the welded part is easily affected by oxidation, resulting in a decrease in the strength and corrosion resistance of the pipeline. Therefore, the pipe must be protected from oxidation by strictly controlling the welding process.

Titanium material has a high melting point and needs to be welded at high temperatures, which makes the welding process more complicated and difficult. If the welding temperature is too high or the welding time is too long, the pipe will be deformed or cracked, thereby reducing the performance of the pipe.

Therefore, when welding titanium pipes for seawater desalination, it is necessary to adopt professional welding techniques, select professionally certified welders and welding materials, and strictly control welding parameters and welding temperature to ensure the quality and performance of the pipes. At the same time, strict inspection and testing of the welded pipeline is also required to ensure that it complies with relevant industry standards and specifications and can operate safely and reliably. If any future query, please contact us.