?????????????????С??????????DN??????????????,???:????????????????,???????????????,????????;????????????????DN???.De???????????,??????De?????,????????????X???????;D???????.
?????????????????й涨:
?ú????????(??п????п)???????????,?????????????DN???;????????????(??????????)???????????????,????????????????;????????(???????)???????????????????????????,??????????d???;??????,????????????????????;
???????ù??????DN???????,??й??????DN???????????????. ????з?????DN???,De????? ?????????,Pe??????????????????;DN???????,???????(??й??????),?????????????·???????????.De??Pe???????? ;?????????????.???DN:?????????????,???????(nominal diameter),????????(mean outside diameter).
??????????????赺??,????????????????,????????????????????????????????. ???????????mm??????,?? DN (metric unit) ????DN100???,????????????,?????????????100mm,????????????????????С??100mm.????????100mm. ???DN100??????,??????????????,???,???????.
????????????D?????,???????????????.???????108mm???????,????5mm,??D108*5???. ??п??????DN???.
???????????ù??????DN,????????????????????????????,???,????,????,?????????,????????DN???,???????????в????????,??????????????????,?????????????????,???.
?????????????????????,?????????????,????????к?С?????.
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