1. Iyini ingcindezi yepayipi le-PE?

Ngokwezidingo zezinga likazwelonke ze-GB/T13663-2000, ingcindezi yeAmapayipi e-PEingahlukaniswa ngamaleveli ayisithupha: 0.4MPa, 0.6MPa, 0.8MPa, 1.0MPa, 1.25MPa, kanye ne-1.6MPa. Ngakho-ke le datha isho ukuthini? Kulula kakhulu: Isibonelo, i-1.0 MPa, okusho ukuthi ingcindezi yokusebenza evamile yalolu hlobo lwe-Ukufakwa kwe-Hdpeyi-1.0 MPa, okuyilokho esivame ukukubiza ngokuthi ingcindezi engu-10 kg. Vele, esivivinyweni sokucindezela sangaphambilini, ngokwezidingo zezindinganiso zikazwelonke, kudingeka kube yingcindezi izikhathi ezingu-1.5. Gcina ingcindezi amahora angu-24, okungukuthi, ukuhlolwa kwenziwa ngengcindezi yamanzi engu-15 kg.

2. Liyini inani le-SDR lepayipi le-PE?

Inani le-SDR, elaziwa nangokuthi isilinganiso sosayizi ojwayelekile, liyisilinganiso sobubanzi bangaphandle nobukhulu bodonga. Ngokuvamile sisebenzisa inani le-SDR ukumela isilinganiso sokucindezela kwamakhilogramu. Amanani e-SDR ahambisanayo amazinga ayisithupha angu-0.4MPa, 0.6MPa, 0.8MPa, 1.0MPa, 1.25MPa, kanye no-1.6MPa yilawa: SDR33/SDR26/SDR21/SDR17/SDR13.6/SDR11.

Okwesithathu, umbuzo wobubanzi bepayipi le-PE

Ngokuvamile, amapayipi e-PE anobubanzi obungu-20mm-1200mm. Ububanzi esikhuluma ngabo lapha empeleni bubhekisela kububanzi obungaphandle. Isibonelo, ipayipi le-PE le-De200 1.0MPa empeleni liyi-PE enobubanzi obungaphandle obungu-200, ingcindezi engu-10 kg, kanye nobukhulu bodonga obungu-11.9 mm.

Okwesine, indlela yokubala isisindo semitha yepayipi le-PE

Lapho abasebenzisi abaningi beza ukuzobuza ngentengo yeUkufakwa Kwepayipi Le-Hdpe, abanye bazobuza ukuthi ingakanani ikhilogramu, sidinga ukusebenzisa ingxenye eyodwa yedatha lapha - isisindo semitha.

Sizobhala amafomula athile okubala isisindo semitha yamapayipi e-PE. Abangane abaswele bazobakhumbula. Kuzoba usizo emsebenzini wesikhathi esizayo:

Isisindo semitha (kg/m)=(ubukhulu bobubanzi bangaphandle-udonga)*ubukhulu bodonga*3.14*1.05/1000

Nokho, yilokho kuphela kokuqukethwe kwanamuhla. Ukuze uthole ulwazi olwengeziwe ngamapayipi e-PE, sicela uqhubeke nokusinaka. Hlangana neShentong ukuze uwine imakethe, wamukelekile ukubuza.