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 Image : Gerhard G at Pixabay
 March, 2021 | In this issue...
 Keeping the elements at bay!
 Moving liquids with high concentrations of sand, or other abrasive particles, can be very wearing, especially on your pumps. If you need to handle corrosive or abrasive media, let us know, as we may well have the answer that suits your purse and your purpose. Seize the day and get in touch!
 Grill Phil! Phil, in your last article you said we waste 50% of the electricity used to run pumps. Is that really true? YES!
 Obviously, it may not be exactly 50%, and this is an average figure arrived at by collecting data from many sources. Some pump installations are far worse than 50% and some better. The problem starts at the design stage of a new system. In calculating the size of a new pump an estimate is made about the losses in the system through pipe friction etc. To ensure that the pump is not undersized an allowance will be made. Say 10%.
 Whoever selects the pump will quite likely also over estimate. Then there is the question of whether or not the correct style of pump is selected for the application. If the pump is run at a fixed speed there is little chance of matching the unit to the demand. If it is belt driven (some still are!) then there’s another 2-5% loss from new. It is quite feasible that even a brand-new pump is over-rated by 30% and consequently running at a very inefficient point. Add in wear and poor or little maintenance over time and you can easily see how much wasted energy there is. There is a quick example below to give you an idea of what this waste is costing you.
 Example. Take a 10kw pump. Run it for 10years at 10hrs per day. And let’s say 1 kilowatt hour costs 10 (pence, cents, use your own rate) 10kw x 10hrs x 365 days x 10 years x 0.1 (pound, dollar) = 36,500 (£ or \$). Plus, all maintenance. If 50% of this is waste what is happening across all of your pumps?
 IF your pumps are, old, wrongly applied (wrong pump for the job), inefficient (most are), worn (old ones are), incorrectly controlled (fixed speed against a varying load?), too big (most are), not matched to your system (most are not) the figures above just get worse and worse. Quite literally your unloved pumps are costing the earth. If you want to do your bit for our planet and your electric bill, let me know. #planetearth #efficientpumps #electricitycosts #isolutions