雨水(shui)(shui)(shui)斗(dou)屬于金(jin)屬落水(shui)(shui)(shui)系統分支，是(shi)設在屋(wu)面雨水(shui)(shui)(shui)由天(tian)溝(gou)進入雨水(shui)(shui)(shui)管道的入口處。雨水(shui)(shui)(shui)斗(dou)有(you)整流格柵裝置,能迅速排除屋(wu)面雨水(shui)(shui)(shui),格柵具有(you)整流作用(yong),避免(mian)形成過大(da)的旋渦,穩(wen)定斗(dou)前(qian)水(shui)(shui)(shui)位,減少摻氣 迅速排除屋(wu)面雨水(shui)(shui)(shui)、雪水(shui)(shui)(shui),并能有(you)效(xiao)阻擋較大(da)雜物。

   雨(yu)(yu)水(shui)(shui)(shui)斗(dou)(dou)設在屋面雨(yu)(yu)水(shui)(shui)(shui)由天(tian)溝(gou)進入雨(yu)(yu)水(shui)(shui)(shui)管(guan)道的入口處(chu)。雨(yu)(yu)水(shui)(shui)(shui)斗(dou)(dou)有整流(liu)格柵裝置,能(neng)迅速排除屋面雨(yu)(yu)水(shui)(shui)(shui),格柵具有整流(liu)作(zuo)用,避免形成(cheng)過大(da)的旋渦(wo),穩(wen)定斗(dou)(dou)前水(shui)(shui)(shui)位,減少摻氣 迅速排除屋面雨(yu)(yu)水(shui)(shui)(shui)、雪水(shui)(shui)(shui),并能(neng)有效阻擋較大(da)雜物。雨(yu)(yu)水(shui)(shui)(shui)斗(dou)(dou)與天(tian)溝(gou)，落水(shui)(shui)(shui)管(guan)組建成(cheng)的金屬(shu)落水(shui)(shui)(shui)系統，起到裝飾性和實用性。         

排(pai)水(shui)(shui)(shui)(shui)雨(yu)水(shui)(shui)(shui)(shui)斗是(shi)一種專用裝置，設(she)在屋面(mian)(mian)雨(yu)水(shui)(shui)(shui)(shui)由天溝(gou)進入(ru)雨(yu)水(shui)(shui)(shui)(shui)管(guan)(guan)道的(de)入(ru)口處。雨(yu)水(shui)(shui)(shui)(shui)斗有整流格(ge)(ge)柵(zha)裝置，格(ge)(ge)柵(zha)的(de)進水(shui)(shui)(shui)(shui)孔有效面(mian)(mian)積是(shi)雨(yu)水(shui)(shui)(shui)(shui)斗下連接管(guan)(guan)面(mian)(mian)積的(de)2~2.5倍，能迅速排(pai)除屋面(mian)(mian)雨(yu)水(shui)(shui)(shui)(shui)。格(ge)(ge)柵(zha)還具有整流作用，避免(mian)形成過大的(de)漩渦，穩定斗前水(shui)(shui)(shui)(shui)位，減少摻氣，并攔(lan)隔(ge)樹葉等(deng)雜物。當采用多(duo)斗排(pai)水(shui)(shui)(shui)(shui)系統(tong)時，為了使(shi)相應雨(yu)水(shui)(shui)(shui)(shui)斗泄流量均勻，雨(yu)水(shui)(shui)(shui)(shui)斗宜對(dui)立(li)管(guan)(guan)作對(dui)稱布置。1根懸吊管(guan)(guan)上連接的(de)雨(yu)水(shui)(shui)(shui)(shui)斗不(bu)得多(duo)于4個(ge)，且(qie)雨(yu)水(shui)(shui)(shui)(shui)斗不(bu)能設(she)在立(li)管(guan)(guan)頂端。 [1]

雨(yu)(yu)(yu)(yu)水(shui)(shui)斗設在屋(wu)(wu)面雨(yu)(yu)(yu)(yu)水(shui)(shui)由天(tian)溝進入(ru)雨(yu)(yu)(yu)(yu)水(shui)(shui)管道(dao)的(de)(de)入(ru)口處(chu)。雨(yu)(yu)(yu)(yu)水(shui)(shui)斗有(you)整(zheng)流(liu)格柵裝(zhuang)置,能(neng)迅(xun)速排除(chu)屋(wu)(wu)面雨(yu)(yu)(yu)(yu)水(shui)(shui),格柵具有(you)整(zheng)流(liu)作(zuo)用,避免(mian)形(xing)(xing)成過大(da)的(de)(de)旋(xuan)(xuan)渦,穩定斗前(qian)(qian)水(shui)(shui)位(wei),減少摻(chan)氣 迅(xun)速排除(chu)屋(wu)(wu)面雨(yu)(yu)(yu)(yu)水(shui)(shui)、雪水(shui)(shui),并(bing)能(neng)有(you)效(xiao)阻(zu)擋較大(da)雜物(wu)雨(yu)(yu)(yu)(yu)水(shui)(shui)斗分為87型(xing)(xing)、79型(xing)(xing)、65型(xing)(xing)，虹吸(xi)式雨(yu)(yu)(yu)(yu)水(shui)(shui)斗，堰(yan)流(liu)式雨(yu)(yu)(yu)(yu)水(shui)(shui)斗三大(da)類(lei)。一般用87型(xing)(xing)(79型(xing)(xing)、65型(xing)(xing)進化版)和虹吸(xi)式雨(yu)(yu)(yu)(yu)水(shui)(shui)斗。雨(yu)(yu)(yu)(yu)水(shui)(shui)斗有(you)整(zheng)流(liu)格柵裝(zhuang)置,能(neng)迅(xun)速排除(chu)屋(wu)(wu)面雨(yu)(yu)(yu)(yu)水(shui)(shui),格柵具有(you)整(zheng)流(liu)作(zuo)用,避免(mian)形(xing)(xing)成過大(da)的(de)(de)旋(xuan)(xuan)渦,穩定斗前(qian)(qian)水(shui)(shui)位(wei),減少摻(chan)氣 迅(xun)速排除(chu)屋(wu)(wu)面雨(yu)(yu)(yu)(yu)水(shui)(shui)、雪水(shui)(shui),并(bing)能(neng)有(you)效(xiao)阻(zu)擋較大(da)雜物(wu)。