1. Butt Weld End: In this type of end preparation, the end of the pipe or fitting is beveled to create a smooth, angled surface. This beveled end allows for a proper weld joint to be made when connecting two components together. The weld joint is typically made by butt welding, where the beveled ends are aligned and welded together to create a strong and leak-proof connection.

2. Application: Butt weld ends are commonly used in various industries, including oil and gas, petrochemicals, power generation, and manufacturing, where welded connections are preferred for their strength and reliability.

3. Material: Carbon steel is a common material used for pipes, fittings, and valves with butt weld ends. ASTM A234 WPB is a standard specification for carbon steel fittings of seamless and welded construction for use in pressure piping applications.

4. Sizes and Dimensions: Butt weld ends come in various sizes and dimensions to match the specifications of the piping system. Common sizes range from small diameters to large ones, depending on the application requirements.

5. Welding Process: The welding process used for butt weld ends typically involves preheating the components, aligning the beveled ends, and then applying heat and pressure to create a fusion weld. The welding process should adhere to industry standards and best practices to ensure weld quality and integrity.

While the term “butt welding heads” isn’t standard, if you were referring to the preparation of pipe ends for butt welding, then the above explanation should provide some clarity. If you had a different concept in mind, please feel free to provide more details, and I’ll be happy to assist further!