Threaded metal pipe is weighty, and needs adequate attachment to aid surfaces. In spite of its thick walls metal pipe is no longer most popular for conveying consuming water, since corrosion might cause leakage In particular at threaded joints, and deposits on inner surfaces will eventually prohibit move. Pipe Fittings http://valves-and-fittings63049.bluxeblog.com/17438058/the-definitive-guide-to-valves-and-fittings