| 摘要 |
PURPOSE: A large water hammer arrester and a manufacturing method thereof are provided to absorb great water hammer since most space of a water hammer arrester is filled with air. CONSTITUTION: A large water hammer arrester comprises a body(1), bellows(2), and a cover(3). The body forms the frame of a water hammer arrester. The body comprises an outer tank(11), a coupling flange(12), and a protective plate(13). The outer tank comprises a cover coupling flange(112) toward the inside of a tank. The coupling flange is attached to the lower end of the outer tank and is coupled to a pipe where the water hammer arrester is used. The protective plate is attached to the inner lower end of the outer tank and protects the bellows. The protective plate comprises a water passing hole(131).
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