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The GMP HGM-ST semi-trash pump is a self-priming electric pump with a special multi-blade open impeller and special mechanical seal that is suitable for the pumping of dirty water.
A non-return valve is fitted on the inlet of the pump body to avoid loss of water after the pump has stopped, making it easier to prime when the pump starts again. These pumps have a maximum suction depth of six metres and a maximum liquid temperature of 70°C.
The GMP HGM-ST series has a cast iron casing, impeller and valve, with the shaft in Stainless Steel and a silicon carbide mechanical seal. The pumps also feature an Inox wear disk and an inspection door on the suction valve.