Widely used to sample from tank or pipe system under sterible condition, and can be sterilized before and after each sampling.

1. Available steam or alcohol for fisintection of the oringinal.

2. Use the diaphragm to seal the material.

3. It is typical sampling and good repeatability to sample. 

4. Use this type valve, secondary pollution can be prevented, can be used as a large number of sampling or mirco-sampling.