Tib neeg ib txwm muaj lus nug txog DN hauv cov kav hlau, yog li niaj hnub no peb siv qee lub sijhawm ntawm DN.
DN yog ib lo lus uas nquag siv los qhia qhov nominal txoj kab uas hla ntawm cov yeeb nkab. DN sawv cev rau "Diamètre Nominal," uas yog lus Fab Kis uas txhais tau tias "Nominal Diameter." Lub nominal txoj kab uas hla yog qhov loj ntawm cov yeeb nkab txoj kab uas hla, thiab nws yog feem ntau qhia nyob rau hauv millimeters.
Muaj ntau qhov ntau thiab tsawg DN rau cov kav hlau, thiab txhua qhov loj muaj nws cov ntawv tshwj xeeb. Feem ntau, qhov ntau thiab tsawg ntawm DN rau cov kav hlau yog los ntawm DN15 txog DN1200. Nov yog qee qhov feem ntau DN qhov ntau thiab tsawg rau cov kav dej steel thiab lawv cov nominal diameters hauv millimeters:
DN15: 21.3 hli
DN20: 26.7 hli
DN25: 33.4 hli
DN32: 42.2 hli
DN40: 48.3 hli
DN50: 60.3 hli
DN65: 73 hli
DN80: 88.9 hli
DN100: 114.3 hli
Lub DN ntawm cov kav hlau, tseem hu ua lub nominal txoj kab uas hla, hais txog qhov loj ntawm cov yeeb nkab sab hauv txoj kab uas hla. Qhov kev ntsuas no pab ua kom muaj kev sib raug zoo thiab kev teeb tsa kom zoo thaum txuas cov kav dej thiab fittings. DN feem ntau qhia hauv millimeters thiab feem ntau yog siv rau hauv kev lag luam thiab kav dej.
TYT Steel yog cov kws tshaj lij steel yeeb nkab xa khoom los ntawm Tuam Tshoj. Hu rau peb los txhawb koj qhov project.
Hu rau: Olivia
Whatsapp / Wechat: ntxiv rau 86 13622081105
