GPI Meter Chemical incompatibility
I have the GPI flometer, G2 series S10T09GMA, and have had these meters at multiple breweries. We usually leave the one to meter our wort going into the fermentor mounted on the plate chiller and run it as part of the CIP. One week it stopped working and I took it off to take a look. I had found that the turbine had come loose and was flopping around in the housing. I called GPI and those guys are great! Long story short the the tungsten carbide shaft in the housing on the meter IS NOT compatible with NaOH and Nitric/Phos blend acids. So as we CIP'd our tank it eroded the shaft. They have a ceramic shaft option available but I do not think it is compatible with this housing type. Do not run your caustic loops and take a good look at your wetted parts and ensure that they are compatible with the application.
Take a look at their compatibility chart. Posted below:
I have the GPI flometer, G2 series S10T09GMA, and have had these meters at multiple breweries. We usually leave the one to meter our wort going into the fermentor mounted on the plate chiller and run it as part of the CIP. One week it stopped working and I took it off to take a look. I had found that the turbine had come loose and was flopping around in the housing. I called GPI and those guys are great! Long story short the the tungsten carbide shaft in the housing on the meter IS NOT compatible with NaOH and Nitric/Phos blend acids. So as we CIP'd our tank it eroded the shaft. They have a ceramic shaft option available but I do not think it is compatible with this housing type. Do not run your caustic loops and take a good look at your wetted parts and ensure that they are compatible with the application.
Take a look at their compatibility chart. Posted below:
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