| 摘要 |
PURPOSE: An ABF(Air Blown Fiber) system including a fluid counterflow prevention device is provided to prevent efficiently the counterflow of fluid by using the fluid counterflow prevention device. CONSTITUTION: An ABF including a fluid counterflow prevention device includes an optical fiber unit supplier(30), a blowing head(31), a pressing unit(36), and a fiber sealing unit(37). The blowing head includes an inlet for receiving an optical fiber unit and an outlet for coupling an ABF tube. The pressing unit inserts the optical fiber unit into the inside of the ABF tube by applying air pressure to the optical fiber unit. The fiber sealing unit is formed by installing a woolen fabric assembly at one side of the blowing head in order to prevent leakage of fluid.
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