Rotech manufactured self-priming trash pumps are designed for economical and trouble-free operation in handling solids-laden liquids and slurries. A self-priming trash pump possesses a large volute design that allows automatic re-priming in a completely open system. These pumps can re-prime itself without the need of suction or discharge check valves. However, this is possible only with partially filled pumps and completely dry suction line.
Depending on the type of model, a self-priming trash pump can handle up to 75mm spherical solids. In case the shaft or bearings of SPT series pumps require service or repair, it is possible to remove the entire rotating assembly without disturbing pump casing or pipelines. Rotating assembly is sealed with an O-Ring, allowing for external adjustments of clearance.
Self priming trash pumps are very effective as they eliminate the need of valves, vacuum and ejector pumps which can get clogged or become impractical for usage after prolonged operation.
Another major product of the company is vertical inline centrifugal pumps. These pumps are close coupled pumps eliminating the need for extra space. Vertical inline pumps can be mounted horizontally as well as vertically directly into a pipeline.