What Is Sanitary Tank Manways?

1.Definition

Sanitary tank manways is a negative pressure sealing device designed for the food, pharmaceutical, dairy and other industries, and is mainly used for overhauling and maintenance of storage tanks, fermentation equipment and other vessels. The product is usually made of stainless steel with polished surface to meet hygiene standards, and features customisable specifications and structural forms. Mainstream sanitary manhole products on the market are mostly suitable for 0.3MPa pressure environment, widely used in water storage equipment and transport tanks and other fields.

2. Characteristics

Sanitary tank manways are mainly made of stainless steel, commonly imported SUS304 or 316L stainless steel, these two kinds of stainless steel quality, corrosion resistance. When making, the welding place will be treated finely, just like a layer of 'waterproof glue' for the joints to ensure that there will be no leakage. And sanitary tank manways surface will be polished very smooth, like a mirror, the surface roughness can reach Ra ≤ 0.8μm, so that bacteria and dirt is very difficult to stick on it, to protect the health and safety. Nowadays, the industry mostly uses CNC machine tools to process the flange connection part of manhole, which is more accurate and reliable.

3. Material

Sanitary tank manways are clean and good for cleaning. The internal channel is smooth and flat, no bumps and gaps, whether it is flushed with steam, or let the liquid inside automatically flow out, are very smooth, in line with strict production standards. Moreover, its sealing performance is particularly strong, just like wearing a 'super mask' for the container, which can firmly maintain the negative pressure environment inside, keeping dust, bacteria and other dirty things outside and preventing contamination of food and medicine in the container.

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