Tuesday, September 15th, 2020 Blue White Industries’ CD1 Dual Diaphragm Pump with Hyperlink Drive Technology pumps chemicals continuously, is self-priming, will not vapor lock and is engineered for zero maintenance, including the patented, ultra-durable diaphragm, DiaFlex®. The exclusive, single-layer diaphragm has been designed to last the life of the pump. The energy-efficient, brushless, DC variable-speed motor helps achieve a large turn-down ratio for extreme accuracy.