Welded flange and integral flange are used in butt welding, have a long neck. How to distinguish between the integral flange and welded flange from the appearance size and purpose?
From the appearance: the thickness of integral flange end more than the welded flange, the integral flange with the high neck.
From the application: the integral flange is connected with the flange of the equipment. Such as the valve on the flange, the flange and the valve is a whole. The neck welded flange is connected and valves, pumps and other equipment supporting the use of time, to the pipe welding.
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