Device for preventing flooding caused by sprinkler failure

作者: Shih-chih Chang

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摘要: A device for protecting irrigation land local flooding caused by damaged sprinklers or broken risers. The device, in accordance with the present invention is designed to be situated within a piping component upstream of each individual and it completely enclosed component. detects responds excess flow sprinkler riser shutting off water sprinkler. In so doing, allows remainder circuit operate without interruption, albeit temporarily service has no external housing therefore itself not vulnerable physical damage from outside. delayed shut-off mechanism which identify transient surges accompany many systems start-ups elevated resulting branch also capability clean out debris might collect pipe line.

参考文章(2)
Calvin A. Lieding, Dual-function valve ,(1976)
David P Ward, Excess flow check valve ,(1969)