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Hygienic Positive Displacement Pumps

Hygienic positive displacement pumps are specialized pumps that are used in industries such as food, pharmaceuticals, and biotech for the transfer of sensitive fluids that require hygienic and sterile handling.

What makes some Positive Displacement pumps Hygienic? 

Hygienic positive displacement pumps are specialized pumps used in applications that require the transfer of fluids, such as in the food, pharmaceutical, and biotech industries. These pumps are designed to handle fluids that are sensitive to shear or turbulence, as well as those that contain particles or gases. Hygienic positive displacement pumps are designed to meet strict hygiene and cleanliness standards, making them ideal for use in applications where product purity and sanitation are critical. 

There are several types of Hygienic positive displacement pumps, including Hygienic rotary lobe pumps, Hygienic AODD pumps, and Hygienic peristaltic pumps. Each of these pumps works in a unique way to transfer fluids, but all rely on the principle of positive displacement to move fluids. 

Hygienic rotary lobe pumps  

These pumps use two rotating lobes that create a void to draw fluid into the pump. As the lobes rotate, the fluid is trapped between the lobes and the pump housing, creating pressure that moves the fluid through the pump and into the discharge line. The lobes rotate in opposite directions, which balances the hydraulic forces and eliminates the need for timing gears. 

Hygienic AODD pumps  

These pumps use compressed air to move fluid through the pump. The pump has two diaphragms that alternately fill and empty as the air pressure is cycled on and off. The diaphragms are connected to a central shaft, which transfers the motion of the diaphragms to the fluid, creating suction and discharge strokes that move the fluid through the pump. 

Hygienic peristaltic pumps 

These pumps use a flexible tube that is compressed by a series of rollers or shoes. As the rollers compress the tube, fluid is pushed through the pump and into the discharge line. The tube then returns to its original shape, creating a vacuum that draws more fluid into the pump. 

Hygienic Twin Screw Pumps 

Hygienic twin screw pumps utilize two intermeshing screws that rotate within a close tolerance casing, creating sealed cavities. As these screws rotate, they continuously trap and move the fluid axially along the screws' length from the suction to the discharge end. 

Features and advantages of Hygienic positive displacemnet pumps 

Hygienic positive displacement pumps are designed specifically for applications that require hygienic, sterile, and contamination-free handling of fluids. These pumps have several features and advantages that make them the preferred choice in a wide range of industries, including food and beverage, pharmaceuticals, cosmetics, and biotechnology. 

  • Hygienic design: Hygienic positive displacement pumps are designed with hygienic features that eliminate dead zones where bacteria and other contaminants can accumulate. The pumps are made of materials that are resistant to corrosion and can withstand high temperatures and pressures. 
  • Gentle handling of fluids: Hygienic positive displacement pumps handle fluids gently, minimizing shear forces and avoiding damage to the fluid or its components. This is particularly important when dealing with shear-sensitive fluids such as biological samples, emulsions, and suspensions. 
  • Easy to clean: Hygienic positive displacement pumps are easy to clean and maintain. They are designed to be disassembled quickly and without tools, and the parts can be cleaned and sterilized easily. This reduces the risk of contamination and makes it easier to comply with regulatory requirements. 
  • Versatile: Hygienic positive displacement pumps can handle a wide range of fluids, including viscous, abrasive, and shear-sensitive fluids. They can also handle fluids containing solids, such as suspensions and emulsions. 
  • Long-lasting: Hygienic positive displacement pumps are designed to be durable and long-lasting. They can operate continuously for extended periods without the need for maintenance or repair. 

Industries and applications that use Hygienic positive displacement pumps 

Hygienic positive displacement pumps are highly sought-after in industries that place a premium on cleanliness and sanitation. These pumps are used extensively in the food and beverage industry, where they transfer products such as dairy, beverages, sauces, oils, and more. They are also widely used in the pharmaceutical industry for the transfer of liquid and semi-solid products like syrups, ointments, creams, and vaccines. In the personal care and cosmetics industry, these pumps are used to transfer products such as shampoos, lotions, creams, and gels. Hygienic positive displacement pumps are also utilized in the chemical and petrochemical industry for the transfer of acids, alkalis, solvents, and resins. Lastly, these pumps are used in the biotech industry for the transfer of cell cultures, enzymes, and other biological products. The global market for these industries is projected to grow over time, which could increase the demand for Hygienic positive displacement pumps in these sectors. 

Why buy Hygienic positive displacement pumps from AxFlow? 

AxFlow provides Hygienic positive displacement pumps that cater to an extensive variety of industries and applications. Exclusive to AxFlow, you will be provided with personalized recommendations from highly experienced process engineers, and access to the most prominent process technology manufacturers that are independent of the manufacturer. If you require assistance in selecting the appropriate pumps that satisfy your requirements, feel free to contact AxFlow without any delay. AxFlow's engineers and specialists can help with the selection process, specifications, installation, and maintenance of your fluid handling equipment. 

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Eoin Cahill
Water & Wastewater, Power generation, Construction & Mining
Brian Coleman
Food & Beverage Sectors.
Brajan Saraci
Pharmaceutical, BioPharma, Chemical and Petrochemical Sectors

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