TAS195 Roots blower, TAS200 Roots blower is a kind of double-stage high-pressure Roots blower produced by imported technology from abroad, which usually adopts couplings or triangular belt for connection and transmission. In the double-stage blower, in order to control the intake temperature of the second stage in a certain limit, it is necessary to set up a cooler in the middle of the two stages; in the double-stage wet vacuum pump, the coolant is injected into the casing by the intake port of the first stage and discharged from the exhaust port of the second stage together with the airflow. In double-stage wet vacuum pumps, cooling water is injected into the casing from the air inlet of the first stage and discharged from the exhaust port of the second stage together with the airflow.

TAS195 Roots Blower and TAS200 Roots Blower can be applied in some heavy industrial production.