Long distance hydrotransportation of aggressive or abrasive products is an exceptionally challenging task even for positive displacement pumps. FELUWA’s MULTISAFE double hose-diaphragms pumps are provided with two hose-diaphragms, which are arranged one inside the other. They ensure linear flow path and redundant, hermetical sealing between wet and drive end. For high flow rates, by far the highest efficiency and lowest irregularity is achieved by means of single-acting five cylinder pumps. Quintuplex configuration not only allows for uniformities comparable with that of centrifugal pumps, but also contributes to a reduction of valve wear and life cycle costs to an extent that has not been feasible thus far. Even without pulsation dampeners, residual pulsation is reduced to 5.1 % p to p (vs. 23 % of single-acting three cylinder pumps and 32.5 % of single-acting four cylinder pumps). Click Here For Complete Contract Text
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