LMI Milton Roy Series E7 is an electromagnetic solenoid driven diaphragm Explosion Proof metering pump for precise and accurate metering control. 0.007 - 20.0 Gallons per Hour max pump output depending on model. 25 - 300 PSI max output pressure depending on model. 400 centipoise max solution viscosity standard. 40,000 cps on High Viscosity Liquid End models. 200 to 1 turn-down pump output control. Urethane Coated cast housing for hazardous applications. Exceeds All Standards for Class 1, Division1, Groups C and D; Class 2, Division 1, Groups E, F, and G.