Valves of retention of double dish: from 40 until DN -800
Proinval Has of valves BVP -78C of double dish.
Between his technical characteristics stand out: construction in ductile smelting GJS400 and grey smelting GJL250, disks in ductile smelting GJS400 and stainless steel AISI 316, from 40 until DN -800, PN - 10/16.