According to the differences between the work fluid and the radiation (or solid), the spray pump can be classified as follows:

1) Use liquid to pump the jet pump of the liquid, such as the bottom water spray pump;

2) Spitting pump with liquid gas (steam) body, such as water vacuum pump;

3) The spray pump of liquid solid and liquid mixture; if it is used for digging mud pumps;

4) Use gas (steam) to pump the jet pump of the liquid, such as the water injection device of the boiler;

5) Use gas (steam) to pump the injection pump of aspirated (steam), such as air injection.

Working fluids are usually water, water steam and compressed air. Here is only a general introduction to the water spray pump of liquid suction liquid.