The powder pump can be referred to as an injector or venturi
pump. There is normally one pump for
each gun which delivers powder from the feed hopper to the spay gun in a
consistent and uniform flow. Pumps use
the venturi principle in which air is passed over the venturi throat (a smaller
constricted cylindrical section) and powder is drawn up though a pick-up tube
into the pump where it is then passed on to the spay gun.
Powder pump parts are exposed to high-velocity powder
streams, and therefore are prone to wear and impact fusion, especially the venturi
throat. It is important to continually check this part for wear. When the venturi throat wears, it opens in
diameter, allowing air to rush through creating inconsistent powder flow and
increased impact fusion.
To prevent inconsistent powder flow and impact fusion, check, clean, and
replace tubes, hoses, pumps, and nozzles on a regular basis.
For more information on application, please see or
download our powder
coating technical guide on our website or contact us today to
speak with our experienced team about how we can help you with your powder
coating needs.
No comments:
Post a Comment