Sanitary Surface Roughness

In Past many years , 32 Ra has been as the standard sanitary surface finish for the high purity industry. With the advent of stricter regulation of the pharmaceutical and biologics markets, and subsequently process components, increasingly smoother surfaces are being required. Now, process machinery used in a pharmaceutical application will generally need to comply with ASME BPE standards that dictate a maximum surface roughness of 20 Ra or better, depending on the application.