Kazhinji, dhayamita yepombi inogona kukamurwa kuita dhayamita yekunze (De), dhayamita yemukati (D), dhayamita yezita (DN).
Pazasi apa kuti tipe mutsauko pakati pemusiyano uyu we "De, D, DN".
DN ndiyo dhayamita yepombi
Cherechedza: Iyi haisi dhayamita yekunze kana dhayamita yemukati; inofanira kunge yakabatana nekuvandudzwa kwekutanga kweinjiniya yemapaipi uye mayuniti eumambo; anowanzo shandiswa kutsanangura mapaipi esimbi akagadzika, ayo anoenderana nemayuniti eumambo seizvi:
Pombi ine zvikamu zvina: 4/8 inch: DN15;
Pombi yemaminitsi matanhatu: 6/8 inch: DN20;
Pombi ye 1 inch: 1 inch: DN25;
Pombi mbiri dzepaipu: 1 uye 1/4 inches: DN32;
Pombi yehafu yeinji: 1 uye 1/2 inches: DN40;
Pombi yemasendimita maviri: 2 inches: DN50;
Pombi ye 3-inch: 3 inches: DN80 (nzvimbo dzakawanda dzakanyorwawo se DN75);
Pombi yeinchi ina: 4 inches: DN100;
Pombi yesimbi yemvura, yegesi inotumira (pombi yesimbi yakarukwakana pombi yesimbi isina galvanized), pombi yesimbi yakakandwa, pombi yesimbi-plastic composite uye pombi yepolyvinyl chloride (PVC) nezvimwe zvinhu zvepombi, zvinofanira kunge zvakanyorwa nedhayamita rezita rekuti "DN" (senge DN15, DN20).
De inonyanya kureva dhayamita yekunze kwepombi
Kushandiswa kwakajairika kweDe labeling, kunofanirwa kunyorwa muchimiro chedhayamita yekunze X ukobvu hwemadziro;
Inonyanya kushandiswa kutsanangura:pombi yesimbi isina musono, PVC nedzimwe mapaipi epurasitiki, nedzimwe mapaipi anoda ukobvu hwemadziro hwakajeka.
Semuenzaniso, tora pombi yesimbi yakasungirirwa nesimbi yakagadzirwa nesimbi, ine DN, De nzira mbiri dzekuisa mazita ndeidzi dzinotevera:
DN20 De25×2.5mm
DN25 De32×3mm
DN32 De40×4mm
DN40 De50×4mm
......
D inowanzoreva dhayamita yemukati mepombi, d inoratidza dhayamita yemukati mepombi yekongiri, uye Φ inoratidza dhayamita yedenderedzwa rakajairika.
Φ inogonawo kuratidza dhayamita yekunze yepombi, asi inofanira kuwedzerwa neukobvu hwemadziro.
Semuenzaniso, Φ25×3 zvinoreva pombi ine dhayamita yekunze ye25mm uye ukobvu hwemadziro hwe3mm.
Pombi yesimbi isina musono kana pombi yesimbi isina ferrous, inofanira kunyorwa kuti "dhayamita yekunze × ukobvu hwemadziro".
Semuenzaniso: Φ107×4, apo Φ inogona kusiiwa.
Chikamu cheChina, ISO neJapan chekunyora mapaipi esimbi uchishandisa zviyero zveukobvu hwemadziro kuratidza ukobvu hwemadziro emapaipi esimbi. Kune rudzi urwu rwemapaipi esimbi, nzira yekutaura yemapaipi ekunze × ukobvu hwemadziro. Semuenzaniso: Φ60.5×3.8
De, DN, d, ф yehuwandu hwekutaura hwakafanana!
De-- PPR, PE pombi, polypropylene pombi OD
DN -- pombi yepolyethylene (PVC), pombi yesimbi yakakandwa, pombi yesimbi-purasitiki yakasanganiswa, pombi yesimbi yakakandwa ine dhayamita yezita
d -- dhayamita yepombi yekongiri
ф -- dhayamita yesimbi isina musono
Nguva yekutumira: Ndira-10-2025
