About the flowing velocities of 306, 265, 210, 190, 164 and 125 cm/min, and about the winding gradients of 1/25, 1/15, 1/10 and 1/4, experiments were performed. The effects were indicated by flowing state, residence time curve and characteristic curve. On plotting the residence time curve, 10% gelatin solution could be used in place of emulsion. The flowing state changed between 210 and 190 cm/min. When the flowing velocity of emulsion or the pipe gradient was large, the inclinations of both residence time curve and characteristic curve were also large. As the results, the old emulsion discharged sooner, and the higher gamma of emulsion was obtained. The effects of velocity was larger than those of gradient, and those in the 2nd ripening pipe were larger than those in the 1st one. For avoiding accumulation of bubles, a larger gradient than 1/30 was necessary.