At Quantex , we understand the importance of viscosity , especially during manufacturing or within a retail or food service environment .
Temperature – a colder temperature significantly increases the viscosity of a product making it more solid and less smooth / runny
Head-height – should a product need to be propelled upwards , it ’ s working against gravity and will need a higher level of force to move it versus if it was to be released downwards or from above
Molecular levels – gases and liquids hold different levels of viscosity and generally speaking , fluids with larger , more complex molecules or long-chain polymers ( e . g proteins , starches , hydrocolloids or gums , etc ) will also have higher viscosities
Consistency – fluids with larger , more complex and inconsistentsized ingredients will have higher viscosities e . g soup with ‘ chunky ’ components versus water
Pressure – the lower the pressure applied to expel a food or beverage item , the slower it will run and the harder it is to drive and maintain the continuous momentum of the product
Freshness / age – if not sealed aseptically , produce can deteriorate and break down either making the produce ‘ runnier ’, or it could solidify / crystallise to cause blockages .
Rheology – some fluids shear thicken or shear thin as their flow velocity increases . Ketchup is a good example of shear thinning where it takes a lot of energy to start the fluid moving and then it becomes thinner . This is why you need to shake the bottle vigorously and then it suddenly pours out . Cornflower slurry is an example of shear thickening – the faster you stir it the stiffer it gets .
The optimal achievement of any pump is a near-vacuum ( 1 Bar negative pressure ) so for a pump to self-prime the fluid must have a sufficiently low viscosity so that it can supply the inlet of the pump . The output of a pump is not constrained and may be several Bar . For extremely viscous liquids the fluid needs to be supplied to the pump using an independent pressure source . Overall , the key to moving viscous fluids is to choose the right pump . There are not many pump designs that can handle highly viscous fluids with precision . Quantex pumps use a positive displacement rotary action , so fixed volumes of fluid ( boluses ) are carried from inlet to outlet around a rotor – which produces inherently accurate doses and is much less sensitive to variables such as line pressure , fluid viscosity and flow rate . The positive displacement rotary action generates a high inlet vacuum and high pressure on the outlet .
This means that , unlike other pumps , Quantex is able to transfer highly viscous liquids such as ketchup and mayonnaise , sour cream , jam , face cream , hair conditioner and even relish etc whilst being self-priming and with better bag evacuation and less waste . Quantex can even manage very thick fluids such as peanut butter with particulates , but it is necessary to encourage the fluid to the inlet side of the pump as the fluid is too thick to self-prime . The below videos show different solutions at various viscosity levels being expelled with the aid of a Quantex pump :
QX25-SD pump dispensing milk and hot coffee from concertina bottles
QX100-SD dispensing relish condiments
The QX 120-Dl dispensing detergent and various dilutions
Bag-In-Box dispensing ketchup and mayonnaise
Bag-In-Box pump dispensing yoghurt dairy products
Bag-In-Box pump dispensing wine and alcoholic beverages
At Quantex , we understand the importance of viscosity , especially during manufacturing or within a retail or food service environment . And to serve these markets , we ’ ve developed a range of pumps to suit different flow rate ranges , viscosity levels and dispense applications and the technology holds over 100 global granted patents . Our High- Speed Eco Pumps use air pressure to activate the diaphragm and seal the pumps instead of a silicone spring , so they are more easily recycled , and can run almost three times as fast as our standard or highpressure pumps . Microdosing Pump
• Low Flow Pump Range
• Bag-In-Box Pump Range
• High Flow Pump Range
If you ’ d like to learn more or discuss how a Quantex pump could work for you , please email Quantex . GeneralSupport @ psgdover . com or call + 49 ( 2065 ) 89205-0 .
www . quantex-arc . com FDPP - www . fdpp . co . uk 5