material: Mild-steel,electro-zinc plated. Stainless steel, type 304 or
316 is available on request..
The Model 7041 and 7043 flange adapters require a hard flat
surface for effective gasket sealing. A sandwich plate is required
and should always be used when the mating surface is not
adequate as with the serrated faces of some valves or the rubberfaced or rubber-lined flange adapters of a wafer valve.
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