API 6D ASME B16.34 CE DN200/DN300/DN400 PN80 LF2 Carbon Steel Body 321 Stainless Steel Ball Full Welded Manual Stem Hard Seated Ball Valve is a premium high-pressure fluid control solution engineered for critical industrial applications, blending LF2 carbon steel’s structural strength with 321 stainless steel’s corrosion resistance and Stellite 6 hard seats’ durability. Its full welded design eliminates leak points, while the manual light stem ensures precise, reliable operation. Certified to API 6D, ASME, and CE standards, and backed by ISO 9001/API Q1 quality assurance, it excels in oil and gas transmission, petrochemical refining, and power generation. Fire-safe, low-emission, and maintainable, it delivers zero-leakage performance, regulatory compliance, and long-term value for large-flow, high-pressure pipeline systems worldwide.