Ububanzi bepayipi De, DN, d ф Incazelo
De, DN, d, ф Ibanga lokumelwa elilandelanayo le
De -- ububanzi obungaphandle be-PPR, ipayipi le-PE nepayipi le-polypropylene
I-DN -- Ipayipi le-polyethylene (PVC), ipayipi lensimbi, ipayipi lensimbi eliyinhlanganisela yensimbi kanye nepayipi lensimbi
D -- ububanzi bepayipi likakhonkolo
ф-- Ubukhulu obujwayelekile bepayipi lensimbi elingenamthungo ngu-ф 100:108 X 4
Umehluko phakathi kwe-diameter yepayipi DE kanye ne-DN
1. I-DN ibhekisela kububanzi obujwayelekile bepayipi, okungewona ububanzi obungaphandle noma ububanzi bangaphakathi (kufanele buhlobane namayunithi esiNgisi ekuqaleni kokuthuthukiswa kobunjiniyela bamapayipi, futhi ngokuvamile kusetshenziswa ukuchaza amapayipi ensimbi). Ubudlelwano bayo obuhambisanayo namayunithi esiNgisi bumi kanje:
4/8 intshiI-DN15;
6/8 intshi: DN20;
1 intshi ipayipi: 1 intshi: DN25;
Ipayipi lama-intshi amabili: 1 no-1/4 intshi: DN32;
Ipayipi lesigamu se-intshi: 1 no-1/2 intshi: DN40;
Ipayipi lama-intshi amabili: 2 intshi: DN50;
Ipayipi lama-intshi amathathu: 3 intshi: DN80 (futhi imakwe ngokuthi DN75 ezindaweni eziningi);
Amapayipi angama-intshi amane: 4 intshi: DN100;
2. I-De ngokuyinhloko ibhekisela kububanzi obungaphandle bepayipi (ngokuvamile imakwa ngo-De, okufanele imakwe ngendlela yobukhulu obungaphandle bodonga X)
Ngokuyinhloko isetshenziselwa ukuchaza: amapayipi ensimbi angenamthungo, i-PVC namanye amapayipi epulasitiki, namanye amapayipi adinga ukushuba kodonga olucacile.
Ukuthatha ipayipi lensimbi elishiselwe njengesibonelo, izindlela zokumaka ze-DN kanye ne-De zimi kanje:
I-DN20 De25X2.5mm
I-DN25 De32X3mm
I-DN32 De40X4mm
I-DN40 De50X4mm
Sijwayele ukusebenzisa i-DN ukumaka amapayipi ensimbi ashiselwe, futhi asivamile ukusebenzisa u-De ukumaka amapayipi ngaphandle kokuhlanganisa ukujiya kodonga;
Kodwa ukumaka amapayipi epulasitiki kungenye indaba; Kuphinde kuhlobane nemikhuba yemboni. Enqubweni yokwakhiwa kwangempela, amapayipi angu-20, 25, 32 namanye esiwabiza abhekisela ku-De, hhayi i-DN.
Ngokuvumelana nesipiliyoni esisebenzayo esizeni:
a. Izindlela zokuxhuma zezinto ezimbili zamapayipi azilutho ngaphandle kokuxhumeka kwentambo yesikulufa kanye nokuxhumeka kwe-flange.
b. Ipayipi lensimbi eliphehliwe kanye nepayipi le-PPR lingaxhunywa ngezindlela ezimbili ezingenhla, kodwa intambo yesikulufu ilungele amapayipi amancane kunama-50, futhi i-flange ithembekile kakhulu kumapayipi amakhulu kunama-50.
c. Uma amapayipi amabili ensimbi enziwe ngezinto ezihlukene axhunyiwe, ukuthi ukusabela kwe-galvanic cell kuyokwenzeka yini kuzocatshangelwa, ngaphandle kwalokho izinga lokugqwala lamapayipi ensimbi asebenzayo lizosheshisa. Kungcono ukusebenzisa ama-flanges ukuze uxhumeke, futhi usebenzise izinto zokufakelwa kwe-rubber gasket ukuze uhlukanise izinsimbi ezimbili, kuhlanganise namabhawodi, ngama-gaskets ukugwema ukuthintana.
Umehluko phakathi kwe-DN, i-De kanye ne-Dg
I-DN Ububanzi begama
De ububanzi bangaphandle
I-Dg diameter gong. I-Dg diameter gong yenziwe e-China, enezici zesiShayina, kodwa ayisasetshenziswa
a. Izindlela ezihlukene zokumaka zamapayipi ahlukahlukene:
1. Emapayipini ensimbi adlulisa igesi yamanzi (akhandiwe noma angewona amapayipi), amapayipi ensimbi asakazwayo namanye amapayipi, ububanzi bepayipi kufanele bukhonjiswe ngedayamitha ebizwa ngokuthi i-DN (efana ne-DN15, DN50);
2. Ipayipi lensimbi elingenamthungo, ipayipi lensimbi elishiselwe (umthungo oqondile noma umthungo ovunguzayo), ipayipi lethusi, ipayipi lensimbi engagqwali namanye amapayipi, ububanzi bepayipi kufanele bube ngu-D × Wall ukujiya (okufana no-D108 × 4, D159 × 4.5, njll.) ;
3. Amapayipi kakhonkolo aqinisiwe (noma kakhonkolo), amapayipi obumba, amapayipi e-ceramic amelana ne-asidi, amapayipi e-liner namanye amapayipi, ububanzi bepayipi kufanele buvezwe nge-diameter yangaphakathi d (efana no-d230, d380, njll.);
4. Ngamapayipi epulasitiki, ububanzi bepayipi kufanele buvezwe ngokwezinga lomkhiqizo;
5. Uma i-DN ye-diameter ye-DN isetshenziselwa ukumela ububanzi bepayipi ekwakhiweni, kufanele kube nethebula lokuqhathanisa phakathi kwe-DN yobubanzi obujwayelekile kanye nokucaciswa komkhiqizo okuhambisanayo.
b. Ubudlelwano be-DN, i-De kanye ne-Dg:
I-De ububanzi bodonga lwangaphandle lwepayipi
I-DN ingu-De susa uhhafu wogqinsi lodonga lwamapayipi
I-Dg ngokuvamile ayisetshenziswa
1 Ububanzi bepayipi buzoba ku-mm.
2 Ukuvezwa kobubanzi bepayipi kuzohambisana nalezi zinhlinzeko ezilandelayo:
1 Emapayipini ensimbi adlulisa igesi yamanzi (akhandiwe noma angaphehli), amapayipi ensimbi kanye namanye amapayipi, ububanzi bepayipi kufanele bukhonjiswe ngedayamitha ebizwa ngokuthi i-DN;
2 Ipayipi lensimbi elingenamthungo, ipayipi lensimbi elishiselwe (umthungo oqondile noma umthungo ovunguzayo), ipayipi lethusi, ipayipi lensimbi engagqwali namanye amapayipi, ububanzi bepayipi kufanele kube ububanzi obungaphandle × ukujiya kodonga;
3 Amapayipi kakhonkolo aqinisiwe (noma kakhonkolo), amapayipi obumba, amapayipi e-ceramic amelana ne-asidi, amapayipi omugqa namanye amapayipi, ububanzi bepayipi kufanele buvezwe ngobubanzi bangaphakathi d;
4 Ngamapayipi epulasitiki, ububanzi bepayipi kufanele buvezwe ngokwezinga lomkhiqizo;
5 Uma i-diameter ye-DN yegama isetshenziselwa ukumelela ububanzi bepayipi ekwakhiweni, ithebula lokuqhathanisa phakathi kobubanzi obujwayelekile be-DN kanye nezicaciso zomkhiqizo ezihambisanayo lizonikezwa.
Amapayipi e-polyvinyl chloride angenapulasitiki okwakhiwa kwe-drainage - de (ububanzi obungaphandle kwegama) ukuze kucaciswe × E (ukushuba kodonga okuzisholo) kusho (GB 5836.1-92).
Amapayipi e-polypropylene (PP) okuphakelwa kwamanzi × E imele (ubukhulu obungaphandle × ukujiya kodonga)
Ukumakwa kwamapayipi epulasitiki emidwebeni yobunjiniyela
Usayizi wobukhulu bemethrikhi
Imelwe ngu-DN
Okuvame ukubizwa ngokuthi "usayizi wegama", akuwona ububanzi bangaphandle bepayipi noma ububanzi bangaphakathi bepayipi. Isilinganiso se-diameter yangaphandle kanye nobubanzi bangaphakathi, okubizwa ngokuthi isilinganiso sangaphakathi sangaphakathi.
Isibonelo, umaki wemethrikhi (usayizi we-mm dimension) wepayipi lepulasitiki elinobubanzi obungaphandle obungu-63mm DN50.
Usayizi wobukhulu bemethrikhi ye-ISO
Thatha i-Da njengobubanzi obungaphandle bepayipi le-PVC nepayipi le-ABS
Thatha i-De njengobubanzi obungaphandle bepayipi le-PP nepayipi le-PE
Isibonelo, umaki wemethrikhi wepayipi lepulasitiki elinobubanzi obungaphandle obungu-63mm (usayizi wobukhulu be-mm)
I-Da63 yepayipi le-PVC nepayipi le-ABS
Isikhathi sokuthumela: Nov-07-2022
