Pipe dhayamita De, DN, d ф Zvinoreva
De、DN、d、ф Mhando dzakasiyana dzezvinomiririra
De -- dhayamita yekunze yePPR, PE pombi uye polypropylene pombi
DN -- Dhayamita yepakati yepombi yepolyethylene (PVC), pombi yesimbi yakakandwa, pombi yepurasitiki yakagadzirwa nesimbi uye pombi yesimbi yakakandwa
D -- dhayamita yepakati yepombi yekongiri
ф-- Dhayamita yesimbi isina musono i ф 100:108 X 4
Musiyano uripo pakati pedhayamita yepombi DE neDN
1. DN inoreva dhayamita yepombi, iyo isiri dhayamita yekunze kana dhayamita yemukati (inofanira kunge yakabatana nemayuniti eChirungu pakutanga kwekugadzirwa kweinjiniya yemapaipi, uye inowanzo shandiswa kutsanangura mapaipi esimbi akagadzika). Hukama hwayo hunoenderana nemayuniti eChirungu ndehwekuti:
4/8 inchi: DN15;
6/8 inch: DN20;
Pombi ye 1 inch: 1 inch: DN25;
Pombi yemasendimita maviri: 1 ne 1/4 inch: DN32;
Inch hafu yepombi: 1 uye 1/2 inch: DN40;
Pombi yemasendimita maviri: 2 inch: DN50;
Pombi yemasendimita matatu: 3 inch: DN80 (yakanyorwawo seDN75 munzvimbo dzakawanda);
Pombi yeinchi ina: 4 inches: DN100;
2. De inonyanya kureva dhayamita yekunze yepombi (inowanzo nyorwa neDe, iyo inofanira kunyorwa muchimiro chedhayamita yekunze X ukobvu hwemadziro)
Inonyanya kushandiswa kutsanangura: mapaipi esimbi asina musono, mapaipi ePVC nemamwe epurasitiki, uye mamwe mapaipi anoda ukobvu hwemadziro hwakajeka.
Tichitora pombi yesimbi yakasungirirwa yakagadzirwa nesimbi semuenzaniso, nzira dzeDN neDe marking ndeidzi dzinotevera:
DN20 De25X2.5mm
DN25 De32X3mm
DN32 De40X4mm
DN40 De50X4mm
Tajaira kushandisa DN kumaka mapaipi esimbi akasungirirwa, uye hatiwanzoshandisa De kumaka mapaipi pasina ukobvu hwemadziro;
Asi kunyora mapaipi epurasitiki inyaya yakasiyana; Zvine chekuitawo nemaitiro eindasitiri. Mukuvaka chaiko, mapaipi e20, 25, 32 nemamwe atinodaidza kuti anongoreva De, kwete DN.
Zvichienderana neruzivo rwebasa rwakawanikwa panzvimbo iyi:
a. Nzira dzekubatanidza zvinhu zviviri zvepombi hadzisi chinhu kunze kwekubatanidza shinda ye screw ne flange.
b. Pombi yesimbi yakarukwa nesimbi uye pombi yePPR zvinogona kubatanidzwa nenzira mbiri dziri pamusoro apa, asi shinda yekurukwa iri nyore kushandisa pombi diki pane 50, uye flange yakavimbika zvakanyanya kune pombi dzakakura kupfuura 50.
c. Kana mapaipi maviri esimbi akagadzirwa nezvinhu zvakasiyana akabatana, kana galvanic cell reaction ichaitika inofanira kufungwa nezvayo, zvikasadaro mwero wekuora kwemapaipi esimbi anoshanda uchakurumidziswa. Zviri nani kushandisa maflanges ekubatanidza, uye kushandisa rabha gasket insulation materials kupatsanura simbi mbiri, kusanganisira mabhaudhi, nemagaskets kudzivirira kusangana.
Musiyano uripo pakati peDN, De naDg
DN dhayamita yezita
De dhayamita yekunze
Gong rine dhayamita yeDg. Gong rine dhayamita yeDg rinogadzirwa muChina, rine hunhu hwekuChina, asi harichashandiswi
a. Nzira dzakasiyana dzekuisa chiratidzo pamapombi akasiyana-siyana:
1. Pamapaipi esimbi anofambisa gasi remvura (akabatidzwa kana asina kubatidzwa), mapaipi esimbi akaumbwa nemamwe mapaipi, dhayamita yemapaipi inofanira kuratidzwa nedhayamita yeDN (yakadai seDN15, DN50);
2. Pombi yesimbi isina musono, pombi yesimbi yakasungirirwa (musono wakatwasuka kana musono wespiral), pombi yemhangura, pombi yesimbi isina ngura nedzimwe pombi, dhayamita yepombi inofanira kuva D × Ukobvu hwemadziro (senge D108 × 4、D159 × 4.5, nezvimwewo);
3. Pamapaipi ekongiri yakasimbiswa (kana kongiri), mapaipi evhu, mapaipi eceramic anodzivirira acid, mapaipi e liner nedzimwe mapaipi, dhayamita yemapaipi inofanira kuratidzwa nedhayamita yemukati d (yakadai se d230, d380, nezvimwewo);
4. Pamapaipi epurasitiki, dhayamita yemapaipi inofanira kuratidzwa zvichienderana nechiyero chechigadzirwa;
5. Kana dhayamita yezita DN ichishandiswa kumiririra dhayamita yepombi mudhizaini, panofanira kunge paine tafura yekufananidza pakati pedhayamita yezita DN uye zvirevo zvechigadzirwa zvinoenderana.
b. Hukama hweDN, De naDg:
De ndiyo dhayamita yemadziro ekunze epombi
DN iri De minus hafu yeukobvu hwemadziro epombi
Dg haiwanzo shandiswa
1 Dhayamita yepombi inofanira kunge iri mu mm.
2 Kuratidzwa kwedhayamita yepombi kunofanira kutevedzera zvinotevera:
1 Pamapaipi esimbi anofambisa gasi remvura (akabatidzwa kana asina kubatidzwa), mapaipi esimbi akaumbwa nemamwe mapaipi, dhayamita yemapaipi inofanira kuratidzwa nedhayamita yezita rekuti DN;
2 Pombi yesimbi isina musono, pombi yesimbi yakasungirirwa (musono wakatwasuka kana musono wespiral), pombi yemhangura, pombi yesimbi isina ngura nedzimwe pombi, dhayamita yepombi inofanira kunge iri dhayamita yekunze × Ukobvu hwemadziro;
3 Pamapaipi ekongiri yakasimbiswa (kana kongiri), mapaipi evhu, mapaipi eceramic anodzivirira acid, mapaipi e liner nedzimwe mapaipi, dhayamita yepombi inofanira kuratidzwa nedhayamita yemukati d;
4 Pamapaipi epurasitiki, dhayamita yemapaipi inofanira kuratidzwa zvichienderana nechiyero chechigadzirwa;
5 Kana dhayamita yezita DN ichishandiswa kumiririra dhayamita yepombi mudhizaini, tafura yekufananidza pakati pedhayamita yezita DN uye zvinodiwa zvechigadzirwa zvinoenderana nazvo inofanira kupihwa.
Mapaipi epolyvinyl chloride asina purasitiki ekuvaka ekudhonza mvura - de (dhayamita yekunze) kuti atsanangurirwe × E (ukobvu hwemadziro) zvinoreva (GB 5836.1-92).
Mapaipi ePolypropylene (PP) ekupa mvura × E inomirira (dhayamita yekunze nominal × Ukobvu hwemadziro)
Kuisa chiratidzo pamapombi epurasitiki pamifananidzo yeinjiniya
Saizi yechiyero chemetric
Inomiririrwa naDN
Inowanzonzi "hukuru hwepakati", haisi dhayamita yekunze yepombi kana dhayamita yemukati yepombi. Iavhareji yedhayamita yekunze neyemukati, iyo inonzi avhareji yedhayamita yemukati.
Semuenzaniso, chiratidzo chemetric (saizi yehukuru hwemm) chepombi yepurasitiki ine dhayamita yekunze ye63mm DN50
Saizi yechiyero cheISO
Tora Da sedhayamita yekunze yepombi yePVC nepombi yeABS.
Tora De sedhayamita yekunze yePP pombi uye PE pombi
Semuenzaniso, chiratidzo chemuchina wepurasitiki une dhayamita yekunze ye63mm (saizi yehukuru hwemm)
Da63 yepombi yePVC uye pombi yeABS
Nguva yekutumira: Mbudzi-07-2022
