1) low-pressure pumps fire trucks, pumps rated working pressure greater than or equal to 1.0Mpa, less than 1.4Mpa.
2) medium-pressure pump fire trucks, pumps, rated pressure greater than or equal to 1.4Mpa, less than 2.5Mpa.
3) low-pressure pump fire trucks, pumps, low-pressure rated pressure greater than or equal to 1.0Mpa, less than 1.4Mpa, medium-pressure rated pressure greater than or equal to 1.4Mpa, less than 2.5Mpa, low and medium-pressure can be used together.
4) High and low pressure pump fire trucks, the pump's low pressure rated pressure is greater than or equal to 1.0Mpa, less than 1.4Mpa, high pressure rated pressure is greater than or equal to 3.5Mpa, less than or equal to 4.0Mpa. high and low pressure can be used together.
5) ultra-high-pressure pump fire truck pump rated pressure greater than 10Mpa, mainly used for high-pressure spray.