Difference Between Sanitary and Ordinary Stainless Steel Pipe

Release Time:

19 Jun,2024

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Sanitary stainless steel pipes and ordinary stainless steel pipes differ mainly in their stringent requirements and applications.

Difference Between Sanitary and Ordinary Stainless Steel Pipe

Difference Between Sanitary Stainless Steel Pipe and Ordinary Stainless Steel Pipe

Characteristics of Sanitary Stainless Steel Pipe vs. Ordinary Stainless Steel Pipe

Sanitary stainless steel pipes and ordinary stainless steel pipes differ mainly in their stringent requirements and applications.

Surface Finish Requirements

Sanitary stainless steel pipes require polished inner and outer surfaces to achieve a bright, mirror-like finish. This polishing prevents fluid substances from adhering to the pipe walls, reducing the risk of contamination and blockages over time.

Passivation Layer

After polishing, sanitary stainless steel pipes are immersed in a passivation tank. An acidic passivation liquid oxidizes the surface, forming a protective layer. This layer enhances the pipe's corrosion resistance.

Oil-Free Cleaning

Sanitary stainless steel pipes also require oil-free cleaning after passivation. This step removes oil stains from the surface, ensuring no contamination of fluids inside the pipe. A grease analyzer is used to inspect and confirm the cleanliness.

Key Differences

The primary difference between sanitary and ordinary stainless steel pipes is the polished inner surface of sanitary pipes. This polish reduces resistance and increases fluid flow. It also prevents debris from the pipe wall from mixing with the fluid, ensuring the inner wall remains clean and hygienic.

In summary, sanitary stainless steel pipes undergo additional processes to ensure a high level of cleanliness and corrosion resistance, making them ideal for applications where hygiene is crucial.