Liquid Band Vacuum Pump Working Basic principle. The vacuum pump consisting an impeller which is located eccentric to the cylinder body(Vacuum pump housing). Vacuum is established in the vacuum pump by utilizing a liquid seal. … When the impeller starts to Water Vacuum Pump rotate, the liquid is starts move outward by centrifugal drive.
Water ring vacuum pump is a common kind of liquid band vacuum pump. Water ring is a rotor with multi-blades eccentrically set up in the pump shell. When it rotates, it throws liquid into the pump and forms a liquid ring concentric with the pump shell. The liquid band and the rotor blade form a rotating variable capacity vacuum pump with periodic volume change. When the working liquid is drinking water, it is called drinking water Ring vacuum pump. There are several 
kinds of water band vacuum pumps with different prices. .Among them, 2BV is more cost-effective. The sort selection of water ring vacuum pump ought to be based on your on-site process, the required vacuum degree and the amount of air pumping required.
