| 摘要 |
PURPOSE:To keep chip of a screw from entering a pump when piping is put in the screw-connection state. CONSTITUTION:A pole-like hollow screw 1 is erected on a flange 2 fixed to an opening of a passage 61 of a pump housing 6, and a passage 11 bent like L-shape to open to the side intermediate position and the base end surface is formed in the half portion of the hollow screw 1. A leading end swivel nipple 3 of a fluid pipe 7 is fitted to the outer periphery of the hollow screw 1, and gaskets 41, 42 are brought into close contact with both end surfaces to be positioned and fixed by T-bolts 51 engaged with the leading end female screw portion 1a of the hollow screw. Even if chip is produced at the time of screwing the T-bolt into the female screw portion, the chip can be prevented from entering the swivel nipple 3 by the gaskets 41, 42. |
