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1.When the filter bag removes dust and high-speed airflow passes through venturi tube, venturi can induce a second airflow that is 58 times the blowing compressed air into filter bag, which is sharply expanded in a moment.
2.Because of the reverse action of airflow, dust deposited on the filter bag will drop off. Venturi tube improves the pulse blowing strength and effect greatly. Consumption of compressed air is lowered and energy is saved.
3.There are some variety kinds of venturi tube ,which are made from different material: aluminum venturi tube, metal venturi tube, rubber-plastic venturi tube and stainless steel venturi tube.
Venturi tube