Ductile Iron Flanged Backflow Preventer Pn16 Anti Corrosion Epoxy Coated Double Check Valve for Water Supply Infrastructure

Ductile Iron Flanged Backflow Preventer Pn16 Anti Corrosion Epoxy Coated Double Check Valve for Water Supply Infrastructure. Double-Check Valve Structure: Dual-core interlock effectively prevents reverse flow and cross-contamination. Anti-Corrosion Epoxy Coating: Blue epoxy powder coating protects against harsh underground soil environments. Stainless Steel Pilot System: Includes stainless steel connecting tubes and drain valve for pressure monitoring. Wide Size Range: Available in DN50 to DN300, with customizable options for specific projects. Robust Ductile Iron Body: Constructed from QT450-10 ductile iron for high strength and durability. On-site Inspection Ports: Reserved pressure test ports allow regular checks without full disassembly. Strict Quality Testing: Every unit undergoes hydrostatic pressure and sealing tests before delivery. Factory Direct Supply: Regular sizes kept in stock with full tender documents for government bidding.