Industrial ITT DIA-FLO diaphragm valve, model 37-20-1.5\"-300-202, with a 1-1/2 in. flanged end. As a diaphragm-type valve, it uses a flexible diaphragm to regulate flow and provide a seal in industrial piping. The listing confirms the exact model and flange size, helping buyers match this valve to 1-1/2 in. flanged connections in standard piping systems.
