Pumping Abrasive Media? Take it Easy!

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The Ecotrans pump is safe against dry running, comes with a pressure relief valve in the hydraulic system and is already Industry 4.0 compatible. The cylindrical shape of the diaphragm facilitates the flow behavior, guarantees a material-friendly conveyance and is well suited for pumping of heterogeneous fluids with solid particles, without virtually any wear. For the handling of chemically aggressive fluids, a broad range of diaphragm materials is available, providing secure chemical resistance for almost all media.

Customized pump systems are available depending on the influence of the particle density, sedimentation or buoyancy speed: traditional pumping from the bottom to the top for fluids with buoyancy speed and DFT (Down Flow Technology) for media which tend to settle and blocking. With DFT, the traditional pumping principle is literally turned upside down, which means flow from the top to the bottom of the pump using the effect of gravity. Thus, sedimentation within the pump is reliably avoided. The consistent modular system allows for individual on-site adaption. Additional solutions are available which ensure SIP and CIP cleaning processes to enable “puddle-free” draining.

The (Cost-)Efficient Alternative

Open pulsation dampeners (so-called air vessels) help to reduce the pressure and flow fluctuations and to equalize the subsequently developing pressure spikes. The in-built compressor solves the problems which are associated with the gas filling of the air vessel being drained with each stroke due to the gas-solubility of the conveyed media, as it ensures that during each return stroke a small amount of filtered air (or gas) is sucked through the compressor chamber and than pushed into the air vessel during the forward stroke. Thus, the existing volume of air in the air vessel is always perfectly supplemented, and residual pulsation is cut to a minimum.

The attained dampening does not only facilitate a significantly smoother conveyance, but also a greater degree of efficiency, because the pressure fluctuations are very low. The in-built compressor also enables the utilization of low-cost single-acting pumps with low “peak to peak” pressure pulsation, where till now only expensive double or triple-acting pumps could be used. The Ecotrans employs the same flow rate regulator as the high pressure pumps.

It utilizes hydrodynamic principles to reliably regulate the position of the double hose-diaphragm as well as the highly efficient internal flow rate reduction in case of filter press feeding and similar applications, without the need for a costly and ineffective bypass regulation, proving an efficient, low-main­tenance as well as effective alternative to more expensive solutions.

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