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.
Flooring Manufacturer was looking to increase pass yield coverage while spraying their Waterborne Topcoat on their flooring. Their old process was using two Automatic Anesta Iwata air spray guns.
Air Power Solution
Through Air Power’s partnership with Carlisle Fluid Technologies we were able to offer the customer a solution by providing two Binks Automatic AG-364 Airless Spray guns fed by a Binks MX Series Pump. The results were tremendous.
The Customer Experienced the following benefits:
- Increased Pass Yield Coverage by around 40% on average.
- Reduced coating use by around 50%.
- Reduced clean up with the reduced amount of over spray
- Improved coverage on edges and profiles, eliminating the shadow effect.
- Elimination of CFM air usage.
The above benefits save the customer TIME and MONEY!
An axle manufacturer has had ongoing issues with accurate filling of gear oils in axle hubs and center differentials due to the operator having to manually select the oil dispensed along with the quantity of oil being dispensed into a given axle. There would be issues with the operator selecting the incorrect oil or volume of oil which often resulted in quality issues of an axle or batch of axles. There was no way to confirm which oil and volume of oil was dispensed into a given axle, which operator did the dispensing on a given axle. All data was on the build sheet for the axle and it was the responsibility of multiple operators and quality technicians to ensure it was filled correctly. All build sheets would have to be read by operators on both sides of the line, then they would have to select the correct oil and volume of oil based on what they read or thought they had read. Quality tracing was extremely difficult using this method. Oil spills and drips were also extremely common, leading to waste and safety concerns
Air Power Solution
Multiple Graco ProDispense systems have been introduced to the facility to eliminate these issues by utilizing advanced technology and programming to ensure error free selecting and filling of fluids. The facilities engineering team will be integrating the ProDispense into their existing PLC’s with new HMI’s which will contain each axles information and location in real time on the line. This will allow each axle’s build sheet to be loaded into the system. By using the axle’s build sheets in the system each operator will touch each axle’s hub or center diff on the HMI which will automatically select the correct oil and oil fill volume for that particular component which will have been preloaded into the PLC and ProDispense by the engineering team. Once the location on the axle has been touched on the HMI the ProDispense will have the appropriate recipe selected via the PLC and the system will illuminate an LED light next to the correct hose reel which contains the appropriate oil. The operator will then unwind the hose reel and dispense valve and insert it into the appropriate oil fill port. Once that is done they will touch the start button on the HMI which will trigger the ProDispense to fill the appropriate volume into the axle. This information will be recorded in their network and will be easily traced back to the axle, oil used and operator performing the fill for traceability. The ProDispense will accurately dispense the correct oil every time within +/- 1%. This will reduce rework, defects and axle failures for the end user. We are utilizing no drip valves to ensure drip free operation to reduce waste and spills to improve safety at the line sides.
The ProDispense allows for accurate selecting, fill tracking, capturing data associated with each fill to prevent defects, failures, waste and improves safety and accuracy of the entire filling process. Repeatability of the process with operators both new to the line and veterans is much improved as each selection is now automated by the system.
A local gearbox manufacturer has had ongoing issues with multiple paint operators making changes to the paint system throughout the day. They rotate painters every couple of hours so the paint quality and consistency is all over the board throughout the day. We have isolated the spray gun controls and implemented electrostatic painting but they still have issues. All colors run through a manual color change manifold and fluid pressure regulator which limits the fluid pressure even when color changing. There are also issues when the colors aren’t changed on a long run that the other colors settle out in the lines.
Air Power Solution
Air Power built a custom, lockable, control panel with a multitude of controls for the company and for the operators.
- Hi/Lo fluid pressure settings though independent air regulators controlling a single Graco air piloted fluid pressure regulator. These are set with supervision and management and are locked from the operators. They have 2 fluid pressures to select from and nothing else to minimize operator adjustments. Pressure selected is visible via included gauges.
- Select-able color valve stack via a rotary control to select the color being sprayed as well as the solvent flush.
- Graco back pressure regulators on each recirculating line for the 3 colors to allow paints to recirculate when not in use.
- Atomizing air pressure adjusted internally and locked out from the operators.
- Integrated inlet air filtration to ensure clean, dry air to feed the spray gun
This solution will eliminate the operators each making many adjustments throughout the day and tighten the quality and consistency of their paint process. It will also speed up color changes now that they are select-able via the color stack rotary control along with a flush setting that will allow full solvent pressure to clear the lines. When the flush cycle is selected the atomizing air will be cut off to eliminate the estat safety concern associated with a solvent flush. The re-circulation of the colors will improve the quality and consistency of each color when selected via the color stack. The integrated air filtration will extend the service life of the spray gun while improving the quality of the paint process also.
Air Power in partnership with Graco is working hard to prep the Hydroshield for upcoming customer demos throughout our entire territory! Pre-plan, setup, and spray prior to demo ensures a successful onsite demo. We’d like to thank the team of Graco Representatives Nick Lewis, Nick Yanavitch, and Chris Maicon for all working with the Air Power team to establish this product in the field.
The Graco Hydroshield Spray Package is an operator-friendly solution for spraying waterborne material that improves transfer efficiency and safety. This system includes manual electrostatic air spray or air-assist guns, controller interface, and high-performing pumps.
The HydroShield Batch Waterborne System makes it easy to safely use electrostatics to spray waterborne material.
- Refill paint supply without having to open the isolation cabinet.
- Use one controller with simple screens to set and adjust system parameters.
- Minimize downtime with durable components that are easily accessed and maintained.
Check out these pictures of the Air Power team setting up this system in the Air Power High Point Finishing Lab!