FLV (Filling Level Valve)
Vents the DEF tank during refueling, defining the maximal fluid level and shutting off the filling process.
ICV (Inlet Check Valve)
Prevents splash-back of DEF through the filler pipe during the refilling process.
Valves for SCR (Selective Catalytic Reduction) tank can be assembled in-tank, on-tank or in-line subject to the Diesel Exhaust Fluid (DEF) tank design and packaging constraints as well as to the DEF tank production process and the various requirements