What is sanitary stainless steel tube/pipe?

Sanitary stainless steel pipes are mainly used in production equipment and assembly lines for food, beverage, alcohol, bioengineering, etc. 

Mainly for the Surface finish of stainless steel pipes, oil ban and passivation layer requirements; 

1. Surface finish: Polishing the inner and outer Surfaces of the steel tube makes the Surface of the steel tube bright; that is, the mirror Surface we often say. The main purpose is to prevent the fluid material in the tube from forming a wall in the tube, which is prone to contamination and forms a tube blockage.

2. Passivation layer: After polishing, the steel pipe should be placed in a passivation tank for immersion, and the Surface of the steel pipe is oxidized with an acid passivation solution to form a passivation layer to achieve the corrosion resistance of the steel pipe. 

3. Oil ban: After the passivation is completed, the oil is cleaned and the oil on the Surface of the steel pipe is removed. After completion, it needs to be tested with a grease analyzer. It mainly prevents the oil pollution of the pipe wall itself from contaminating the fluid material in the pipe.