Classification of ultraviolet radiation
(1) UV-A: refers to ultraviolet light with a wavelength of 315-400nm, which can darken human skin.
(2) UV-B: refers to ultraviolet radiation with a wavelength of 280-315nm, which can cause cancer, wrinkles, and aging of the skin.
(3) UV-C: refers to ultraviolet rays with wavelengths between 200-280nm, among which the 253.7nm band has bactericidal and disinfecting effects. UV-C is used for sterilization and disinfection in engineering.
The sterilization principle of ultraviolet disinfection is to use the energy of ultraviolet photons to destroy the structure of DNA of viruses, bacteria, and other pathogens in water. The main purpose is to break various structural bonds in DNA or undergo photochemical polymerization reactions, such as dimerization of THYMINE in DNA, thereby causing various viruses, bacteria, and other pathogens to lose their ability to replicate and reproduce, achieving the effect of sterilization.
Schematic diagram of UV sterilizer principle

This series of submerged ultraviolet sterilizers can effectively act on the liquid and residual air in the water tank, preventing secondary pollution and maintaining the cleanliness of the water tank. This type of sterilizer is suitable for industries that require segmented and timed water supply, such as water supply, electronics, pharmaceuticals, food, cosmetics, etc. This series of products has the characteristics of simple structure, low cost, easy installation, and high sterilization rate.

Schematic diagram of submerged ultraviolet sterilizer operation