Fully welded ball valve, standard model, available in the sizes up to DN 200 (8”) full bore or to DN 300 (12”x8”) reduced bore, PN 10÷50 or ANSI 150-300, in carbon steel with floating ball in stainless steel or nickel plated carbon steel, with handle, operating square or fixed stem extension (see Optional devices and Operating devices), with butt welding ends.