Liquid Band Vacuum Pump Working Theory. The vacuum pump consisting an impeller which is located eccentric to the cylinder body(Vacuum pump casing). Vacuum is created in the vacuum pump by using a liquid seal. … When the impeller begins to rotate, the liquid is Water Vacuum Pump usually begins move outward by centrifugal pressure.

Water ring vacuum pump is a common kind of liquid band vacuum pump. Water band is definitely 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 band and the rotor blade form a rotating variable capacity vacuum pump with periodic volume change. When the operating liquid is water, it is called drinking water Ring vacuum pump. There are many kinds of water ring vacuum pumps with different prices. .Included in this, 2BV is more cost-effective. The type selection of water band vacuum pump should be predicated on your on-site process, the required vacuum degree and the amount of air pumping required.