![]() Centrifugal pumps tend to be best suited for pumping fluids with low viscosity fluids as the pump’s performance is not greatly affected by small changes in viscosity. For very high viscosity, non-flowing media, the pump can be mounted on a priming plate that pushes down into the drum or IBC and primes the pump as the assembly moves down into the container. In comparison to pumping high viscosity, pump selection for pumping low viscosity fluids tends to be far less complex. In some scenarios, you may need the pump to suck (self-prime) from an open-top drum or IBC. Viscous Pumps to ‘lift’ high viscosity fluids Ideally, you should connect the pump inlet directly to the tank outlet. If you’re relying on gravity to feed the pump inlet from the bottom outlet of a large tank or vessel, make sure there is a minimum length of big bore pipework between the pump inlet and the supply of product. ![]() The boundary layer theory explains why disc pumps are used. Provide a positive feed to the pump inlet Centrifugal pumps with disc impellers are also known to be highly inefficient because of slippage. Keep the discharge distance to a minimum.Īs mentioned, size matters, so, discharge pipework length needs to be as short as possible and have as few bends as possible. A highly viscous fluid tends to be thick, like honey or cold maple syrup. Bottom line – use as fat a pipe as possible and keep the pressure down! Viscosity is the property of a given liquid that describes its resistance to flow. ![]() The bigger the internal bore of your discharge pipework, the lower the resistance caused by friction. Proceedings of 13th International Conference on Liquid Atomization, Tainan, August. Size matters! Use large bore discharge pipe or hose. (2015) Atomization and Filamentation of High-Viscosity Liquid with a Rotating Cone. Using a pump with a large inlet and large internal cavities makes things easier by reducing resistance … passing a camel through the eye of the needle is not easy! Running at low speeds not only protects shear-sensitive fluids or entrained particles but it also helps the pump to grab hold of the liquid and pump continuously without cavitating. We recommend using rotary lobe pumps: in. Discharge Size: 1 inch Maximum Discharge Flow: 8 GPM Power Source: DC Powered Pump. Because the viscosity of the fluid can be very high, it is essential to select the appropriate chocolate pumps. Maxiprime Pumps for Pastes that do not flow Liquid Handling Pumps - High Viscosity Drum Pump - FPUD500 Series.
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