White Knight PSD Series diaphragm pumps are ideal for corrosive or toxic liquids such as acids, fuels, glues, paints, resins, inks, or wastewater. Additionally, they work well with more viscous fluids such as food products, cosmetics, and slurries. Their leak-proof and icing-resistant design provides superior performance, optimized efficiency, and simplified maintenance compared to standard AODD pumps.