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FH3AL

3' ALUM ADAPTER FLANGE X HALF COUPLER

This is an aluminum adapter that mates a 3-inch TTMA bolt flange—standard on tank trailers and tank trucks—to a 3-inch female NPT (National Pipe Thread) half coupler. It lets you connect threaded piping or hoses directly to a tank's flanged opening, common in chemical, fuel, and dry bulk transfer systems. Replacement is typically needed when threads strip, the flange warps, or aluminum corrosion compromises the sealing surface, usually during preventive maintenance of loading/unloading lines.