| 摘要 |
<p>A serially connected fluid hammer preventer capable of maintaining the pressure energy converting efficiency of an elastic buffer for long period by increasing the water sealability of the elastic buffer by a protective film tube body with elastic characteristics, wherein an inflow side connecting tube body (1) and an outflow side connecting tube body (3) are connected to a flow passage (R) such as a city water pipe in series, both ends of a sleeve (5) are disposed in the center through-holes (1C, 3C) thereof, the protective film tube body (7) is disposed, through a space, around the outer periphery side of small holes (5E) provided in the wall surface of the sleeve, both end flange parts (7A, 7B) thereof are held by the recessed seats (1D, 3D) of the inflow side connecting tube body (1) and the outflow side connecting tube body (3) and the projected seats (5C, 5D) near both ends of the sleeve, and the elastic buffer (8) is disposed on the outer peripheral side of the protective film tube body (7) disposed on the small hole outer peripheral side of the sleeve (5).</p> |
