Zhengyuan Valve Group Co., Ltd., based in Wenzhou’s Longwan District, has developed extensive experience in valve solutions for dilute sulfuric acid services across chemical, petrochemical, and fertilizer industries . Dilute sulfuric acid, particularly at concentrations below 70%, presents a greater corrosion challenge than concentrated acid, demanding careful material selection . The company offers a comprehensive material strategy: 316L stainless steel valves provide reliable resistance in moderate dilute acid environments due to their molybdenum addition; for more aggressive conditions with chloride ion coexistence, duplex stainless steel valves deliver superior pitting and crevice corrosion resistance; lined valves with PTFE offer nearly inert performance across a wide range of acid concentrations . The company maintains rigorous quality control from raw material verification through finished product testing, supporting its practical, quality-first manufacturing philosophy. Through continuous refinement of material selection and manufacturing processes, Zhengyuan Valve Group remains focused on delivering reliable valve solutions for critical chemical processing applications.