Hygienic SS304 Zb3V Series Step-Less Variator Rotary Lobe Pumps. Hygienic SS304 Construction: Made from stainless steel AISI304 or AISI316L for sanitary food and chemical applications. Step-less Speed Regulation: Mechanical step-less speed regulator allows safe, reliable, and infinite flow adjustment. Wide Voltage Compatibility: Supports 220V, 380V, 440V, 480V, and other voltages for global operation. Multiple Rotor Options: Available with Single Wing, Double Wing, or Trilobe rotors for diverse needs. Versatile Connection Types: Offers Triclamp, Union, Threaded, and Flange connections for easy integration. Broad Application Scope: Suitable for Food, Chemical, Pharmacy, Daily Chemicals, and Construction industries. One Year Warranty: Comprehensive one-year warranty coverage for mechanical equipment reliability. High Capacity Output: Flow capacity ranges from 300 to 43000 L/H with power from 0.55kW to 22kW.