Stainless steel self suction pump according to the principle of action is divided into the following categories:

    1 gas-liquid mixing type (including internal and external mixing);

    2 water ring wheel;

    3 jet type (including liquid jet and gas jet).

    Gas-liquid mixed type self-priming pump working process: due to the stainless steel self-priming pump body of special structure, after the pump stops rotating, the memory of the pump body has a certain amount of water, pump starts up again due to the action of the rotating impeller, inhalation pipe air and water are fully mixed, and is discharged into the gas water separation chamber, gas water separation chamber and the upper part of the gas overflow, the lower part of the water return impeller, re and suction pipe residual air mixed until the pump and suction tube gas discharge, the self-priming is completed, and the normal pumping. Water ring type stainless steel self-priming pump is a water ring round the pump impeller and the combination in a shell, with water ring round the gas discharge to achieve self absorption. When the pump to work, can cut off the water through the valve and pump impeller ring round channel, and release the water within the liquid ring round. Jet type stainless steel self-priming pump, the centrifugal pump and jet pump injector (or on), relying on the injection device, in the nozzle caused by vacuum suction to achieve.