DN20DIANDONGQIUFADEJIAOFASHIMEIWENTIDE，DN200DEDIANDONGFAWEIZHIMINGFAMENLEIXING，YIBANSHUIGUANLUWEIJIEZHIFAHUOZHAFA。DIANDONG：DAIBIAOFAMENSHICAIYONGDIANDONGZHUANGZHIJINXINGKAIGUANDE，XIANGDUIDEHAIYOUSHOUDONGFAMEN。

QIUFA，BIAOZHUNGB/T21465-2008《FAMENSHUYU》ZHONGDINGYIWEI：QIBIJIAN（QIUTI）YOUFAGANDAIDONG，BINGRAOFAGANDEZHOUXIANZUOXUANZHUANYUNDONGDEFAMEN。ZHUYAOYONGYUJIEDUANHUOJIETONGGUANLUZHONGDEJIEZHI，YIKEYONGYULIUTIDEDIAOJIEYUKONGZHI。JIEZHIFA（stop valve,Globe Valve）DEQIBIJIANSHISAIXINGDEFABAN，MIFENGMIANCHENGPINGMIANHUOZHUIMIAN，FABANYANFAZUODEZHONGXINXIANZUOZHIXIANYUNDONG。

FAGANDEYUNDONGXINGSHI，（TONGYONGMINGCHENG：ANGAN），YEYOUSHENGJIANGXUANZHUANGANSHI，（TONGYONGMINGCHENG：MINGGAN）JIEZHIFASHIZHIGUANBIJIAN（FABAN）YANFAZUOZHONGXINXIANYIDONGDEFAMEN。ZHAFA（gate valve）DEQIBIJIANSHIZHABAN，ZHABANDEYUNDONGFANGXIANGYULIUTIFANGXIANGXIANGCHUIZHI，ZHAFAZHINENGZUOQUANKAIHEQUANGUAN , BUNENGZUODIAOJIEHEJIELIU。

DIANDONGFAKEFENWEI：DIANDONG（DIAOJIEXING）QIUFAHEDIANDONG（DIAOJIEXING）DIEFA。

1.PAISHUIGUANLUSHANG，DN200DEDIANDONGFA，CISHIYINGGAIXUANZEDIANDONGDIEFA（LIANJIEFANGSHIDAIQUEDING），DIANDONGDIEFADEYOUXIAOLIUTONGMIANJIJIAODA，QIBIDONGZUOXUNSU，XIANGTONGTONGJINGDIANDONGQIUFAJIAGEJIAOANGGUI。 2.

CHOUZHENKONG，DN20DIANDONGFA，XUANYONGDIANDONGQIUFAJIAOHELI。