Versamatic’s 1 ½” (38mm) bolted plastic air-operated double-diaphragm (AODD) pump offers versatile installation options with adjustable porting for both horizontal and vertical setups. Key features of the 1 ½” AODD pump include: - Maximum flow rates of up to 100 gpm (378 lpm) - Chemically resistant design, suitable for both fluid and air sides - Exceptional solids handling capability of up to 0.47 inches (12 mm) - Industry-leading displacement of 0.43 gallons (1.63 liters) per stroke - Reliable on/off performance - Excellent chemical resistance - ATEX-compliant models available in conductive polypropylene - Safe, leak-free bolted construction Constructed from polypropylene and polyvinylidene fluoride (PVDF), this pump combines the strong acid and alkali resistance of polypropylene with the durability and chemical resistance of PVDF, which also offers high tensile strength and impact resistance—ideal for UV applications. With its excellent chemical resistance, the 1 ½” all-plastic pump is perfect for aggressive chemical transfer, waste treatment (such as filter press applications), and metal finishing, while maintaining high flow rates in a compact size.