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Flanges
Flanges
Flanges are available as blind flanges, slip on flanges, socket welding flanges, lap joint flanges, threaded flanges and weld neck flanges. These flanges are manufactured to specifications of ASME B16.5, ASME B16.47, ASME B16.48, BS EN 1092, BS 4504, API-605, API-590, MSS SP44, DIN 2632-2638 and DIN 2576, 2642, 2527 and 2566. Blind flanges and slip on flanges are used in quick assembly to save the cost, these are also used in less strict requirements in terms of length of pipe section. Socket welding flanges are recommended for orifice flanges. These work as substitute for slip-on-flanges in the cases where the diameter of the tube is very small and working pressure is very high. Lap joint flanges are primarily used when quick assembly and disassembly of pipe line section is required under limited working pressure. Threaded flanges are used in special requirements to work under high temperature and pressure, making sure no welding joint is made at the assembly. Weld neck flanges are mainly used on heat coupling of pipes when there is possibility of expansion of the section while bending stress on the coupling.