Float Valves for External Installation on Tanks, Level Regulating ValveNV 67e, single-seat, balanced straight-way valve for feeding or draining, large flow rates | usable for nearly all liquids | completely made of deep-drawn CrNiMo-steel (316L) – surface finish of the body Ra ≤ 1.6 μm | easy-to-maintain owing to the clamp system | incl. float rod and shell-type float made of CrNiMo-steel