Full-bore and reduced-diameter structures. The ball valve used for conveying the splicing and easy-to-slagging medium pipeline should use full diameter to facilitate the passage of the regular wax-sweeper. The diameter of the ball valve should be used on the pipeline for conveying gas or medium with physical properties similar to water. Because its weight is about 30% lighter than the full diameter ball valve, it is beneficial to reduce the pipeline load and reduce the cos
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