Valves of retention of ball: from DN - 1.1/4” until DN -24”
Proinval Has of valves BVP -08-94B / BVP -08-52R of retention of ball.
Between his technical characteristics stand out: construction in ductile smelting GJS400 and grey smelting GJL250 PN - 10, from DN - 1.1/4” until DN -24” , norms of manufacture DIN 3202 F - 6 and bridas DIN PN - 10/16.