Water ring vacuum pumps (water ring vacuum pump for short) is a rough vacuum pump, it can receive a maximum vacuum of 2000~4000Pa, up to 270~670Pa series air ejector. Water ring pumps can also be used as a compressor, called liquid ring compressor, belongs to the low pressure compressor, pressure range of pressure for the 1~2x105Pa table.

This pump is used in the v-belt type vacuum filter vacuum pressure can achieve about -0.06MPA