G Series Progressive Cavity Pumps

G series progressive cavity pumps are designed for the transfer of high-viscosity fluids. When it is not possible for the fluid to reach the rotor-stator section, which is the area where the fluid is transferred by flowing through the pump's suction chamber due to its own gravity, the use of G series progressive cavity pumps becomes essential. Also known as hopper pumps, G series progressive cavity pumps have a suction inlet that is different from standard progressive cavity pump models in that it is not flange-connected.

A hopper with an open mouth is used as the pump's suction chamber, allowing the fluid to be drawn into the pump through this chamber. Additionally, unlike standard progressive cavity pump designs, G series progressive cavity pumps have a coupling rod section with a specially designed screw type. This screw system is used to ensure that the fluid can be transferred and reach the rotor-stator section after being taken into the chamber. Tolerance values are left between the hopper and screw to ensure maximum transfer efficiency. Depending on process needs, injection connection points can be added to the hopper body for situations where the transfer of different fluids is required.