| 摘要 |
PURPOSE:To prevent the variability of mixing ratio at the time of starting feed of liquid to be mixed by connecting both a changeover outlet of the first three-way valve inserted to the first circulation path and the changeover outlet of the second three-way valve inserted to the second circulation path to a mixing discharge port. CONSTITUTION:The feed side of the first liquid such as a main agent is changed over to both the first circulation path 5a and a mixing discharge port 8 by means of the first three-way valve 6a and the feed side of the second liquid such as a curing agent is changed over to both the second circulation path 5b and the mixing discharge port 8 by means of the second three-way valve 6b. Mixed both liquids are discharged by changing over both three-way valves 6a, 6b to the discharge port 8 side. When liquid is not fed through the discharge port 8, the first liquid and the second liquid are respectively circulated through the first circulation path 5a and the second circulation path 5b and therefore are not made residual. Therefore the first liquid having definite viscosity and the second liquid can always be allowed to remain on standby in circulation pipes 4a, 4b and the mixed liquid of definite mixing ratio can be fed at the starting time of a pump. |
