Labeling of fire sprinkler pipes Post date Home › Forums › Materials, Trades › Fire Protection › Labeling of fire sprinkler pipes This topic has 0 replies, 1 voice, and was last updated 5 years ago by atuter. Viewing 1 post (of 1 total) Author Posts August 30, 2018 at 12:07 pm #77 atuterKeymaster When you are installing sprinkler systems, usually the pipe markings should be visible on every piece of pipe longer than 2 feet. It should include manufacturers name, model etc… Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In → Earthwork