Three-screw pumps for low-pressure industrial use (up to 40 bar). Used in many industrial applications where long life and a very regular flow are required. The design of the screws and the body of the pump are designed to avoid any axial load. The quality and the advanced design of the screws guarantee a very low level of acoustic emissions and pulsations. The geometric design of the three screws creates seal chambers. During the rotation of the screws, the main one creates a sort of cavity that holds the fluid and guides it in an axial direction from the entrance to the exit door. The SMT16B pumps can be equipped with internal or external safety safety valves. The SMT16B has shorter screws than SMT pumps, to be used in applications where space is limited