Quite Possibly the best ASME B31.3 Cheat Sheet for Anhydrous Ammonia (MN-Dept of Ag)
9/2020 UPDATE: I have contacted the Minnesota Department of Agriculture, Pesticide & Fertilizer Management Division regarding a statement on this 2-page “Cheat Sheet” regarding their apparent requirement that Hydrosrtatic RVs be put on NH3 vapor piping and vapor hoses. This is how it is presented: Hydrostats must be installed in each section of liquid and…...
