Twin-Screw Pumps

Products Overview

Manufactured under the brand name Houttuin, this technology utilizes two inter- meshing screws synchronized by a set of external timing gears, which are assembled into a close fit figure-eight-shaped housing. The operating principle employed is based on the non-contacting concept of positive displacement (PD) pumps, which means a combination of timing gears are used to prevent the screws from touching each other. In addition, radial bearings orienting the screws position in the bores permits this technology to defy the capabilities of many PD pumps offered in the industry for non- lubricating fluids. With no need for contacting surfaces and no dependence on fluid film support, twin-screw pumps can be made using many different materials. They operate at a wide range of speeds while dealing with conventional and unconventional fluids with properties like ultra-low and ultra-high viscosity, gas entrainment, contamination and corrosives. This technology is particularly suitable for industries, where fluids are non-Newtonian, shear sensitive, have high vapor pressures, varying viscosities, and where processes are solvent flushed, heated, batched or drained.