Hills-McCanna is the USA pioneer and a world leader in the design, production and application of diaphragm valves. First introduced over 80 years ago, Hills-McCanna valves have consistently proven their value in tough applications through years of reliable service. The valves are designed to handle a wide range of fluids and gases including highly corrosive toxic chemicals and abrasive slurries. Over 80 years of experience have given Hills-McCanna the expertise to manufacture the most rugged, best designed, and longest lasting diaphragms in the industry.