Profile: Bonetti Valves - NACB, L.L.C. distributes cesare bonetti valves and liquid level gauges. We are ISO-9001 certified. Our product line ranges from Y-pattern globe & bonnetless valves, bellows sealed valves, piston valves, high temp ball valves, pressure seal bonnet, liquid level gauges to magnetic level gauges. Bonetti Liquid Level Gauges are available in various materials of construction, both transparent and reflex glass designs, as well as magnetic type for high pressures.