
SUMIJETTER II low-powered jet pump-type sand lifter system
Ejector pump powered by pressurized water for significant improvements in grit chamber work conditions
The SUMIJETTER II sand-lifting system features a low-powered jet pump for use in grit chamber at sewage treatment plants or pump stations.
A conventional transport system is an open system that incorporates grit scrapers, conveyors, skip hoists, and other equipment. In comparison, SUMIJETTER II deploys a jet pipe for transport between the grit chamber and grit separator, eliminating the need for mechanical transport equipment. Because it incorporates fewer components, the system significantly reduces maintenance locations and allows more flexible layouts for maximum work site convenience. With closed systems, the product also makes it possible to cover the grit chamber and use transfer piping to minimize unpleasant odors. This easy-to-maintain system has been deployed at many sites in recent years.
Ordinary jet pump-type sand-lifting equipment requires significant power for the high- pressurizing pump. In response, we modified the internal structure of the ejector and developed sand-lifting equipment that drastically reduces power consumption.

Features of the SUMIJETTER low-powered jet pump sand lifter
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Energy saving
SUMIJETTER II 80 (Suction pipe diameter: 80A):
Water-pressurizing pump motor reduces power consumption by at least 26%.
SUMIJETTER II 100 (Suction pipe diameter: 100A):
Water-pressurizing pump motor reduces power consumption by at least 39%. -
High pump head
SUMIJETTER II 80 (Suction pipe diameter: 80A): Achieves pump head of up to 50 m
SUMIJETTER II 100 (Suction pipe diameter: 100A): Achieves pump head of up to 45 m -
Upgrading
The amount of pressurized water is the same as that used by a conventional system. The system eliminates the need to boost equipment specifications in the downstream processes.



Applications
- ・Pumping, transportation, and washing of sand in grit chambers
- ・Washing and transportation of screenings in grit Chambers
Examples of applications of the jet pump system
オープン水路から床にかわり作業環境が改善

