A400 Double Spiral Impeller

Includes a set of both inner and outer blades, with the inner pumping down and the outer pumping up, creating a complete turnover of the tanks contents

Close clearance operation to tank wall improves heat transfer on jacketed vessels over open style impellers such as pitch bladed turbines (A200) or wide bladed hydrofoils (A320)

Bolted construction is available for tanks with small diameter manways