The subject innovation is for a plurality of the installed discharge port is assembled the solution injected boss head formed solution injected boss that is inserted into a flange joint so that the solution can be smoothly discharged without accumulating on the coated pipe boss between the flanges of the coated tube boss It relates to a head.
Devised the present to this, discharging the solution while in communication with a, becomes is formed with a plurality of flanges (200 201) up and down, the flange (200 201), coated tube bosses 100 between for closing the end of the coated tube bosses 100 inlet so that thereby the solution discharge is the boss head 300 coupled for jidoe the solution injected boss head 300 for which is in communication with the plated tube bosses 100 tube 110 within the central portion a solution can be introduced ( a 310) is formed it becomes. As to the outer surface in communication with the inlet 310 being inlet hose 400, so that the solution can be discharged to be supplied to the unit 310 is connected characterized in that the discharge port 320 formed in one or more of the plurality.