A DN400 PN16 ductile iron ball check valve is used for automatic backflow prevention in large‑bore water, wastewater, and industrial pipelines, especially where solids‑laden or viscous media require a self‑cleaning, low‑maintenance non‑return valve.
C.I Ball Check Valve DN400
R70 641,84
-
DN400 indicates a 400 mm bore, used in trunk mains, pump stations, and large industrial lines.
-
Large wastewater and sewage pipelines
-
Industrial effluent and solids‑bearing media
-
Pump discharge and non‑return protection
-
HVAC and water circulation systems
-
Any large‑diameter pipeline needing reliable, low‑maintenance backflow prevention







