Yini ububanzi bemizi?

Ngokuvamile, ububanzi bepayipi bungahlukaniswa ububanzi obungaphandle (de), ububanzi be-inner (d), ububanzi bemizi (i-DN).
Ngezansi ukukunikeza umehluko phakathi kwale "de, d, dn" umehluko.

I-DN ububanzi bebhontshisi

Qaphela: Lesi akusona ububanzi obungaphandle noma ububanzi obungaphakathi; kufanele kuhlobane nokuthuthuka kwangaphambili kwe-Pipeline Engineering kanye namayunithi wobumbu; Imvamisa esetshenziselwa ukuchaza ipayipi lensimbi elenziwe nge-galvanized, elihambelana namayunithi wobumbuso ngale ndlela elandelayo:

Ipayipi elingu-4 - i-intshi: 4/8 inch: DN15;
I-6-Minute Pipe: 6/8 inch: DN20;
1 inch Pipe: 1 inch: DN25;
I-intshi amabili ipayipi: 1 no-1/4 amayintshi: DN32;
I-Half-intshi Pipe: 1 no-1/2 amayintshi: DN40;
Amapayipi amabili we-intshi: ama-2 inches: DN50;
I-Three-Inch Pipe: Ama-Intshi ama-3: I-DN80 (Izindawo eziningi nazo zibhalwe njenge-DN75);
Amapayipi ama-intshi amane: amasentimitha amane: DN100;
Amanzi, ipayipi lensimbi yokuhambisa igesi (ipayipi lensimbi elenziwe nge-galvaningnoma ipayipi lensimbi elingaphelelwa yi-galvanized), ipayipi lensimbi, ipayipi elihlanganisiwe lensimbi kanye ne-polyvinyl chloride (PVC) ipayipi nezinye izinto zamapayipi, kufanele imakwe ngegama elithi "DN" (DN20).

 

I-de ikakhulukazi isho ububanzi obungaphandle kwepayipi
Ukusetshenziswa okujwayelekile kokulebula okude, kudingeka ukuthi kufakwe ibhalwe ngendlela yobubanzi obungaphandle x usayizi odongeni;

Ikakhulukazi esetshenziselwa ukuchaza:Ipayipi lensimbi engenamthungo, I-PVC namanye amapayipi epulasitiki, namanye amapayipi adinga ubukhulu obucacile odongeni.
Thatha ipayipi lensimbi elenziwe nge-welvanized njengesibonelo, nge-DN, izindlela ezimbili zokulebula zilandela:
DN20 DE25 × 2.5mm
Dn25 de32 × 3mm
Dn32 de40 × 4mm
Dn40 de50 × 4mm

......

 

U-D ubhekisa ububanzi obungaphakathi wepayipi, u-D ukhombisa ububanzi obungaphakathi wepayipi likakhonkolo, futhi φ ukhombisa ububanzi bendilinga ejwayelekile

Φ futhi sikhombise ububanzi obungaphandle kwepayipi, kepha-ke kufanele bandiswe ngobukhulu bodonga.
Isibonelo, φ25 × 3 Kusho ipayipi elinobubanzi obungaphandle le-25mm kanye nodonga olungu-3mm.
Ipayipi lensimbi elingenamthungo noma ipayipi lensimbi elingelona iqiniso, kufanele limakwe "ububanzi obungaphandle
Isibonelo: φ107 × 4, lapho φ kungashiywa.
I-China, i-ISO nengxenye yeJapan yelebula lensimbi yensimbi esebenzisa ubukhulu bodonga ukukhombisa ubukhulu bodonga lochungechunge lwensimbi yensimbi. Ngalolu hlobo lwepayipi lensimbi, indlela yokubonisa ipayipi elingaphandle kobubanzi ububanzi. Isibonelo: φ0,5 × 3.8

DE, DN, D, Uhla lwezinhlandlela ezifanele!
De-- PPR, PE PIPE, Polypropylene Pipe OD
I-DN - ipayipi le-polyethylene (PVC), ipayipi lensimbi, ipayipi elihlanganisiwe lensimbi, i-galvanized Steel Pipe Lomzinal ububanzi
D - ukhonkolo wamapayipi wephayili
I-ф - I-Seamless Steel Pipe Tumente