When specifying the proper pump for any fluid application understanding the properties of the fluid to be handled is of the upmost importance.
Viscosity…. is one of, if not the most important variable when determining the proper specification of a diaphragm pump (or any pump) and associated flow rates. The viscosity of many materials fluctuate as ambient temperature’s change through the seasons and as plant conditions change month to month, so understanding the effect viscosity has on sizing pumps is important.
All AODD pump ratings are with water at the pump outlet. For example, a Graco 1050 pump is a 1″ ported pump rated at 50 gallons per minute (water at the pump outlet). When looking to specify the above example pump, three things must be further evaluated to insure proper performance/specification – Viscosity (will alter flow rate), available air pressure at the pump, pipe or hose size (at pump outlet all the way to the point of discharge). Once you have determined these variables you can properly select the perfect pump for your unique application.
Getting the right pump will make a world of difference in the efficiency of your set-up. Not only will your flow rates remain stable throughout the year, but downtime will be reduced and the life of your pump will be extended.
The customer came to Air Power wanting to upgrade their pump package that supplies material from their paint kitchen to two applicators on each end of their booth. The booth runs 60’ long, with a width of 20’ and would be used to touch up dump truck beds. After running a pressure drop calculation we determined that the material could fall out of solution if there were a day or 2 that no spraying was needed.
Air Power Solution
After reviewing the application with the customer, Air Power proposed using a 3:1 Graco Endura-Flo pump. This option allows for the 3x the pressure, which was more than enough to overcome any pressure loss during the materials travel, as well as, has a much larger fluid section requiring less wear and tear on the pump while in operation. Since this is strictly a touch up process and not guaranteed to be an everyday event, we also recirculated the fluid lines to prevent any material from falling out of solution.
This solution provided more than enough pressure to power the required spraying. Additionally, if there’s an occurrence where the system isn’t used for several days, the customer only has to run the pump a few minutes before spraying to move the stagnant material back within the agitated drum requiring no waste or quality concerns.
The Air Power solution solved the pressure problem, the potential solution issues, and provided a much larger fluid section to prevent wear and tear.
Troubleshooting with Graco
Air Power along with the help of the Graco Team, organized a troubleshooting training event. Our team spent time learning all of the Graco pump quick fixes that they can use in the field to solve issues for customers on the spot. With this training, our Account Managers can save customers time and money in service and repair costs. Thanks to the Graco team for their support!
How To Depressurize A High Pressure Pump and Flush With Solvent
In this video, Account Manager, Jeff Tussey walks through the steps to depressurize a high pressure pump and flush with Solvent. Please LIKE & SUBSCRIBE to our channel to stay updated on the latest from Air Power’s How To Series!