Flat steel flanges of type “G” are used for the production of flange joints in the manufacture of pipelines and fitting elements when there are butterfly valves with a rubber lining (“Keyston” type valves) between them. They are connected to the pipes by welding.
The dimensions of the flanges correspond to the standard for nominal diameter and pressure, and the connection measures of the flanges are in accordance with SRPS M.B6.011 and DIN 2501.
Flat steel flanges are made of S235JR or some other steel with similar properties for operating temperatures up to 120 (° C). For temperatures above 120 (° C) we use other suitable steels.
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