(1) Nan sistèm nan, mi yo enteryè ak eksteryè nan tiyo asye cho oswa mi yo enteryè ak eksteryè mi yo nan tiyo cho-dip gaz asye ak dyamèt tiyo tiyo< dn100="" can="" be="" connected="" by="" threads.="" when="" the="" system="" uses="" hot-dip="" galvanized="" steel="" pipes="" on="" the="" inner="" and="" outer="" walls,="" the="" pipe="" fittings="" can="" use="" forged="" iron="" threaded="" pipe="" fittings="" (gb3287~3289);="" when="" the="" system="" uses="" hot-dip="" galvanized="" seamless="" steel="" pipes="" on="" the="" inner="" and="" outer="" walls,="" the="" pipe="" fittings="" can="" use="" forged="" steel="" threaded="" pipe="" fittings="" (gb/t14626).="">
(2) Si miray tiyo asye a mwens pase δ
(3) Lè tiyo a adopte 55 ° fil tiyo ki apwopriye (Rc oswa R), koòdone a fil ka sele avèk kasèt PTFE; lè tiyo a adopte 60 ° fil tiyo tape (NPT), li rekòmande yo sèvi ak sele kòm sele nan koòdone nan fil. ; Kasèt so an ta dwe aplike sou fil gason an.
(4) Tiyo ak yon dyamèt tiyo > DN50 pa dwe itilize jwenti fil, ak yon sèl moso diminye jwenti yo ta dwe itilize nan rediksyon dyamèt tiyo a.
