G25-1 Progressive Cavity Single Screw Pump The G25-1 is a positive displacement progressive cavity single screw pump engineered for continuous, pulse-free transfer of high viscosity, abrasive and shear sensitive media. With a cast iron body and a 316L stainless steel rotor running inside a moulded rubber stator, it delivers stable flow even with high solid content sewage sludge. Key Features Pulse-free, reversible flow with minimal shear to the medium Cast iron housing with