application

Aseptic sampling valves are mainly used for collecting material samples from tank equipment or pipelines, and require sterilization treatment before and after each sampling. No dead corners, thorough sterilization, continuous and ready for sterile sampling. Widely used in industries such as food, brewing, beverages, dairy products, toothpaste and cosmetics, biopharmaceuticals, etc.

technical parameters

◆Specification: DN6 DN8 DN10 DN15

◆Connection methods: welding, clamps, threads

◆Maximum working pressure: ≤ 8bar

◆Maximum sterilization pressure: ≤ 3bar

◆Working temperature: -10 ℃ to 120 ℃

◆Maximum sterilization temperature: 120~150 ° C

◆Parts in contact with materials: SS316L Other components SS304

◆Internal surface contact product: Ra ≤ 0.8 μ m

◆Sealing element: PTFE

working principle

This sterile sampling valve is mainly divided into several components: handwheel, bracket, valve core, valve body, and diaphragm sealing ring. When in the closed state, the valve core is pushed by rotating the handwheel clockwise, and the sealing head is pressed against the material inlet of the valve body by the valve core to achieve a sealing effect; If sampling is required, steam or other sterilizing medium is introduced from one of the sampling ports (usually the one below) to fill the entire sample chamber and export it from the other sampling port. After a certain period of time, the sample chamber and sampling port are in a sterile state; Then, by rotating the handwheel counterclockwise and pulling the valve core, the sealing head is detached from the material inlet of the valve body, allowing the sample to flow out of the tank through the sample chamber and be collected from the sampling port; After sampling is completed, rotate the handwheel clockwise to push the valve core, and use the valve core to press the sealing rubber head again at the inlet of the valve body material; Inject clean water to drain the residual liquid in the sample chamber (if the sample is a relatively clean medium such as sterile water, this step can be omitted), and then inject sterilization medium for sealing and retention until the next sampling.

Schematic diagram of working principle

Sampling status schematic diagram Sterilization status schematic diagram