Fluorine lined check valve

Available in nominal diameters from DN15 to DN450, with pressure ratings from PN10 to PN25. Body materials include gray cast iron, carbon steel, stainless steel, and ultra-low carbon stainless steel, with linings available in PTFE (F4), PCTFE (F3), FEP (F46), PFA, and PO for excellent corrosion resistance across a wide range of media. Designed and manufactured in accordance with GB/T 12233 standard, featuring flanged end connections for reliable sealing and easy installation. Suitable for a wide range of industrial applications requiring reliable backflow prevention and corrosion-resistant performance.