Food & Drink Processing & Packaging Issue 38 2022 | Page 42

8 Reasons for selecting an Air Operated Diaphragm Pump for your Food Transfer Application

Selecting a food transfer pump can be difficult . When there ’ s a possibility of changing viscosity , requirement for hygienic design , gentle handling to ensure products remain as designed and a hazardous environment , selecting a unit can be a difficult choice !
Hygienic Pump Design
One overlooked pump design is an Air Operated Diaphragm Pump . Its simplicity in design – a central air exchanger driving a piston back and forth compressing each diaphragm to deliver fluid provides many benefits .
Here are 8 reasons why an Air Operated Diaphragm Pump may be the best solution for your food transfer application :
HIGH FLOW RATE Due to the speed in which both diaphragms can be filled and compressed , air operated diaphragm pumps deliver one of the highest flowrates possible for viscous fluids without compromise to flow rate . Capable of delivering up to 54,000L / hour its high output is often unrivalled .
UNAFFECTED BY VISCOSITY Positive displacement design ensures that pumping performance remains regardless of viscosity . Internal components act as valves ensuring fluid output is maintained across a variety of thick or thin fluids and temperatures .
RUN DRY As this design of pump is constructed without an internal mechanical seal , when operated without fluid- unlike other pump designs it does not sustain damage enabling it to be left unattended , as well as not being sensitive to dry matter .
SELF PRIMING & SOLID HANDLING Pumps can prime up to 6M , and handle suspended solids without clogging . Designs are available to handle some solids without damage .
GRADES OF FINISH TO MATCH YOUR PROCESS Not only are pumps available in a multitude of materials but also a variety of Stainless Steels . For example if there is a hygienic application where the only requirement is material type - Stainless Steel can be provided . If polished stainless or complete accredited ( 3A or EHEDG ) hygienic design for cleaning via CIP with rotating pump head for draining another version can be selected . All with a variety of sanitary diaphragms , available as conductive for flammable liquid handling ( ATEX ).
GENTLE CONVEYING OF PRODUCT The working motion of an AOD pump is gentle meaning product consistency remains unchanged . However when an air regulator is installed , pumping speed can be slowed reducing any shear .
SIMPLICITY OF MAINTENANCE Due to wetted parts consisting of a few components maintenance is often quick , uncomplicated , requires little expertise , with low risk of damage during reassembly .
The above mentioned benefits highlight why these pumps are used for fluids ranging from Whisky to Sauces , Creams and Gels with very little maintenance , or downtime .
If you have a food or beverage application and are unsure of the right solution , contact us to see how we can help .
42 FDPP - www . fdpp . co . uk
AOD Pump Design
Visit www . northridgepumps . com , Email : Sales @ northridgepumps . com or contact us on 01773 302 660 .