■ Max:immersion depth:5m 

■ Max:liquid temperature:+40C

■ Liquid pH value:5-9 

■ Max.liquid density:1.2x103kg/m3 

■ The maximum depth allowed in water is 5m from its center of impeller; 

■ The temperature of trans medium's shouldn't be higher than 40℃;

■ The trans medium's PH scope is 4~10;

■ The kinematics viscosity of the trans medium is 7x10-7~23x10-6m2/s

■ The maximum density of the trans medium is 1.2*103kg/m3