Liquid Band Water Vacuum Pump Vacuum Pump Working Basic principle. The vacuum pump consisting an impeller which is situated eccentric to the cylinder body(Vacuum pump casing). Vacuum is created in the vacuum pump by utilizing a liquid seal. ... When the impeller starts to rotate, the liquid is certainly begins move outward by centrifugal push.
Water band vacuum pump is a common kind of liquid band vacuum pump. Water band is a rotor with multi-blades eccentrically set up in the pump shell. When it rotates, it throws liquid in to the pump and forms a liquid ring concentric with the pump shell. The liquid ring and the rotor blade type a rotating 
variable capacity vacuum pump with periodic volume change. When the functioning liquid is water, it is called drinking water Ring vacuum pump. There are several kinds of water band vacuum pumps with different prices. .Included in this, 2BV is more cost-effective. The sort selection of water band vacuum pump ought to be predicated on your on-site process, the required vacuum level and the amount of air pumping required.