Double Sub-merged Arc Welding usually associated with spiral welded pipe. The welding arc is submerged in flux to protect from air impurities, this process is done on both the id and od seperately hence double submerged.
No. Double Submerged Arc Welded is DSAW; LSAW stands for Longitudinal Submerged Arc Welded. As an aside, HSAW stands for Helically Submerged Arc Welded. All of these refer to various types of pipe manufacturing processes.
aquaduct
Irrigation
no they are not
In the U.S. they are called plumbers, assuming you mean water pipes, and not the pipes that one smokes.
tubes means the little out diameter, pipes means the large diameter.
No. Double Submerged Arc Welded is DSAW; LSAW stands for Longitudinal Submerged Arc Welded. As an aside, HSAW stands for Helically Submerged Arc Welded. All of these refer to various types of pipe manufacturing processes.
It means shooting the puck in hockey into the goal (used to be called the pipes)
Look back at the history of failures with ERW and it explains itself. The liklihood of a failure is higher and the consequences are enormous.
because you touch it.
Black pipes are made of iron, which means that they will easily rust. Additionally, the iron will leach into the water, contributing to its mineral content and hardness.
A yellow buoy in the water means caution. They can mean there is danger of pipes, dredge lines or other dangers.
that means you might have a leak in the pipes or something.
aquaduct
Cardiovascular (translated loosely it means "heart tubes/pipes").
Yes, it means you need a plumber!!!
Irrigation