How do I prevent product leakage when conveying fine chemical powders?

Leakage can happen when rotary valve parts wear down, particularly with abrasive or corrosive chemicals. The most important parts to check and maintain regularly are rotors, shaft seals, and bearings. Anti-corrosive coatings such as XTR-Coat can prevent rotor-to-housing tolerances from wearing down too quickly, which is a key aspect of preventing leakage. Four-lobed shaft seals last longer and have a more reliable seal. Finally, outboard bearings have a longer service life and lower risk of failure.