Heishin NE 25-12

The Heishin Heishin NE 25-12 is a progressive-cavity positive-displacement pump. It is normally installed in sludge, bilge, waste, fuel or process systems. It is designed for steady low-pulsation transfer of viscous, contaminated or shear-sensitive liquids. In operation, a helical rotor turns inside a stator to move sealed cavities toward discharge. The supplied entry states the pressure designation as 12 bar; this information is retained unchanged. Compared with neighbouring models, the relevant differences are rotor/stator size, stages, elastomer/material selection and drive; these must be confirmed from the installed documentation rather than inferred from the model designation alone. Service and survey attention should concentrate on dry-running protection, rotor/stator wear, seal leakage, drive load and suction condition. For exact ratings, dimensions, tolerances, test limits and model-specific settings, refer to the manufacturer documentation for the exact figure.