B. Preparation for Cleaning 1. Clean piping after shop pressure testing. 2. Protect threaded connections and flange faces to prevent damage by abrasives. 3. Block off, disconnect, or remove from the piping system to be cleaned, the following items
B. Preparation for Cleaning1. Clean piping after shop pressure testing.2. Protect threaded connections and flange faces to prevent damage by abrasives.3. Block off, disconnect, or remove from the piping system to be cleaned, the following items