When investing in commercial pumps, customers often ask us why some pumps cost more than others, when they appear to do the same job. If you’re getting a ‘competitive quote’ you need to know what you are comparing and understand how to decipher the pump’s specifications and capabilities – that way you know you’re getting the right pump for the job.
Understanding different types of pumps and models
ISO – stands for International Standards Organisation which is a measurement and performance standard. These are the top of the range pumps, offering uncompromised performance and reliability. In the Davey range these are the ISO CF and CM models.
DIN – stands for Deutsches Institut für Normung (or the German Institute for Standardization). These have less stringent material build standards and compliance testing and lower specification bearings than the ISO range, making them significantly cheaper than the ISO pumps. Components are not necessarily interchangeable between manufacturers. In the Davey rage these are DIN CS models.
Propriety Models – most manufacturers have their own range. Davey have the CD and Dynaflow ranges. Davey’s pumps are independently tested with accurate curves.