Lobe Pumps Valisi

Lobe Pumps Valisi

Rotary lobe pumps are reliable due to their hygienic design, are capable of pumping without damaging the structure of the liquid and, depending on the viscosity of the liquid, rotary vane pumps are capable of generating pressures up to 12 bar.

 

Valisi series of lobe pumps is available in 10 standard sizes with nominal nozzle diameters from 1'' to 6'', with capacity of up to 400 m3/h and maximum working pressure of up to 12 bar. Pumps with two-lobe rotors (lobes move in two planes) or three-lobe motors (rotors rotate relative to each other in three planes) are designed in accordance with modern requirements for high quality, reliability, ease of maintenance of equipment and have excellent performance characteristics. Seal options include single and double mechanical seal.

 

Operating principle of Valisi lobe pumps

	Colored area on the side of the picture represents the liquid as it enters the suction port due to the vacuum created by rotating lobes, which are rotated by cogwheels. Black arrows indicate the forward movement of the liquid and the direction of the pump's rotation.
	This figure shows the fluid filling the inner chamber of the pump and just before exiting the outlet. We can also see how a closed area forms between the rotor/lobe and the housing.
	In this picture, we can see how the inner chamber of the pump is completely filled, how the liquid has reached the outlet and now overflows outside the pump. In the last stage, the liquid is pressurized to the outlet by the energy generated by the rotation of the lobes/rotors.

 

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4 reasons to buy lobe pumps at Asco Pumps

•  Lobe pumps are used in a variety of industries including pulp and paper, chemical, food, pharmaceutical and biotechnology. They are popular in these industries because of their superior sanitation, high efficiency, reliability, corrosion resistance and good on-site cleaning and on-site sterilization (CIP/SIP) performance.
•  These pumps offer a variety of vane options, including the number of vanes on the lobes: single vane, two, three, four, five and six vane. The pumps are capable of pumping highly viscous liquids and slurries, liquids with large solids such as cherries or olives, without disturbing the structure. They are also used for handling slurries, pastes and a wide variety of other liquids.
•  Lobe pumps provide an almost uniform liquid flow eliminating the need for pulsation dampers.
•  Simple and robust design of the pumps, high precision of parts manufacturing, as well as excellent quality of the materials used ensure reliable operation of the pumps for decades.