Flanges are types of fittings to join the Valves, Pipes and equipment together. The HADIDSA's Flanges are produced by forging method in various classes from 150 up to 1500 using different material under ASME B16.47 and ASME B16.5 standards.
According to ASME B16.5, flanges are categorized to 150, 300, 400, 600, 900, 1500 and 2500 classes.
These numbers define the maximum pressure in PSI which each flanges can bear at maximum allowance temperature. The pressure-temperature relation for different materials are defined in above standards. some HADIDSA produces both types of Flanges <the Welding Neck Flanges and Blind Flanges> as its normal products.