The customer insisted the process was sanitary and the company at which I was working bid on that basis. However, the process actually wasn’t sanitary; we wasted lots of money and suffered loads of aggravation proving that. In this case, the process had several telltale signs that it wasn’t sanitary. The clean-in-place (CIP) procedure involved little more than a hot water rinse, and the reactor only had a mill finish. The process used an explosive powder and flammable liquids. In addition, the product was thixotropic and required pressures in excess of 150 psi; almost all sanitary systems operate below 150 psi — sanitary valves normally aren’t designed to…Full Story
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