SANS 1123 is South African flanges standard, SANS 1123 old norm name SABS 1123, flanges pressure class 600 1000 1600 2500 4000, flanges type slip on plate, slip on hubbed, blank, screwed, welding neck. SANS 1123 flanges plate type also name 1000/3 or 1600/3, slip on plate flange for 3, blind for 8, weld neck for 2, screwed for 4, slip on boss for 5, 1000/3 backing ring for HDPE pipes.
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