Titanium rod filter is a filter made of sintered titanium powder filter element, generally used for coarse filtration or intermediate filtration. This filter element has the advantages of high precision, high temperature resistance, corrosion resistance, and high mechanical strength, and is widely used in the pharmaceutical industry. The shell material is 316L or 304 stainless steel. Compliant with GMP standards.
After a period of use, the titanium rod filter cartridge will experience a certain degree of blockage, resulting in a decrease in flow rate and an increase in pressure at the front end of the filter, such as from below 0.22mPa to above 0.3mPa. At this time, the filter cartridge needs to be cleaned, and there are generally several cleaning methods. Below, the editor will briefly introduce them to you:
For newly used filter cartridges, the method of backwashing with clean water and blowing back with gas is generally used for cleaning, that is, using water slightly higher than the working pressure (such as 0.3mPa) to inject water in the opposite direction for cleaning. The recoil time is about 1-3 minutes.
When the filtration effect does not significantly improve after multiple backwashs, a hydrochloric acid solution of less than 5%, sulfuric acid solution of less than 8%, or NaOH solution of less than 10% can be used to soak at room temperature and then rinse with clean water.
The specific choice for cleaning the titanium rod filter element should be acid washing or alkali washing, depending on whether impurities in the filtrate are easily soluble in acid or alkali. The editor hopes that the above content can be helpful for everyone using titanium rod filters.