■ 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