# Electromagnetic motor and a diaphragm sealed chamber to ensure one-way gas flow with high vacuum degree.
# Non oil pump design, relative isolation of gas circulation in the chamber.
# No Pollution, Safe and explosion- Proof.
 
Applications: 
It can be used with corresponding equipment for aerator, nitrogen blowing insrtument, solid phase extractor, thin-layer color spray, solvent filter, atmosperic sampler and other vacuum or positive pressure needs.

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