Which type of pipe is preferble for cooling water system inside refinery is it lsaw or hsaw
one has an H...
seamed pipe is rolled cold and then the seam is welded down the length.rolled to whatever sizes needed.don't put a lot of pressure in a seamed system.
ERW (Electric Resistance Welding) pipe is manufactured by rolling metal and then welding it longitudinally across its length. Seamless pipe is manufactured by extruding the metal to the desired length; hence ERW pipe has a welded joint in its cross-section, while seamless pipe does not have any joint in its cross-section through-out its length.
wrought pipe bends means straight pipe bend using rotary draw pipe bender. or pipe bend by any method
Which type of pipe is preferble for cooling water system inside refinery is it lsaw or hsaw
Helically Submerged Arc Welded
The pipe which is formed by seam welding.
Seamed pipe is a weak cheap pipe.low pressure.it is cold rolled steel and when rolled it is welded.the seam.
normal pipe size(nps) greater than or equal to 36" double seam is used.
seam less pipes are having with out weld but produced by extension process it is costly than seam
Steel pipe is made by pulling the molten steel through a cone before its welded together. Twenty one feet is the length at which the newly formed steel would hold a straight seam wield but still be able to be formed into pipes.
Electro fusion seam welded pipe. I have found it on yahoo answers. If i'm wrong please reply with the right answer.
one has an H...
If you are working with a standard pattern for leisure wear summer shorts, a simple straight stitch seam will be good enough. If you are making sports shorts, that will require a stronger finish, I suggest a flat fell seam.
seamed pipe is rolled cold and then the seam is welded down the length.rolled to whatever sizes needed.don't put a lot of pressure in a seamed system.
A plain seam is easy, and very simple.It helps the fabric lie flat.It's the most common seam.You don't need to change needles or settings for a plain seam.