Thoroughly welded joints are viewed as trustworthy and durable. Pipe welding is usually performed by specially accredited personnel whose techniques are retested periodically. Normal codes are followed when designing (or producing) a piping system. Businesses which promulgate piping standards include: In Concentric reducer and that is generally known as a http://gaugevalve41727.bloggerswise.com/170406/the-ultimate-guide-to-pipe-fiting