A na-akọwapụta nha pipe site na ọnụọgụ abụọ na-abụghị akụkụ:
Nha Pipe Nominal (NPS) maka dayameta dabere na sentimita asatọ.
Nọmba Nhazi (SCH iji kọwapụta ọkpụrụkpụ mgbidi nke ọkpọkọ.
Ma nha na nhazi oge achọrọ iji kọwaa otu ọkpọkọ nke ọma.
Nha Pipe Nominal (NPS) bụ ihe dị ugbu a North America Set nke ọkọlọtọ nha maka ọkpọkọ ejiri maka nrụgide dị elu na nke dị ala na okpomọkụ.Mkparịta ụka ọzọ banyere nke a bụ ebe a.
Nha Pipe Iron (IPS) bụ ọkọlọtọ mbụ karịa NPS iji kọwaa nha ya.Nha ahụ bụ ihe dị ka n'ime dayameta nke ọkpọkọ na sentimita.Ọkụ ọ bụla nwere otu ọkpụrụkpụ, aha ya bụ (STD) Standard ma ọ bụ (STD.WT.) Standard arọ.Enwere naanị ọkpụrụkpụ mgbidi 3 n'oge ahụ.Na Machị 1927, American Standards Association mepụtara usoro nke họpụtara ọkpụrụkpụ mgbidi dabere na obere usoro n'etiti nha wee webata Nominal Pipe Size nke dochie Iron Pipe Size.
Nọmba nhazi oge maka ọkpụrụkpụ mgbidi sitere na SCH 5, 5S, 10, 10S, 20, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160, STD, XS (Extra Strong) NA XXS (Double). Ike).
Usoro ọkpọkọ na tubing nke mmasị
BPE – Black Plain End Pipe
BTC - eriri ojii & jikọtara ya
GPE – Ọgwụgwụ Plain Galvanized
GTC – eriri galvanized & jikọtara ya
TOE - eriri otu njedebe
Mkpuchi ọkpọkọ & Emecha:
Galvanized - Na-ekpuchi ihe mkpuchi zinc na-echebe na ígwè iji gbochie ihe onwunwe site na nchara.Usoro ahụ nwere ike na-ekpo ọkụ na-ekpo ọkụ-galvanizing ebe ihe a na-etinye na zinc a wụrụ awụ ma ọ bụ Electro-Galvanized ebe mpempe akwụkwọ nchara nke sitere na ọkpọkọ ahụ na-agbanye ọkụ n'oge mmepụta site na mmeghachi omume electro-chemical.
Ejighị akwa - ọkpọkọ enweghị mkpuchi
Ihe mkpuchi ojii - Ejiri ígwè-oxide agba ọchịchịrị kpuchie
Red Primed -Red Oxide Primed a na-eji dị ka uwe ndabere maka ọla ndị na-emepụta ihe, na-enye igwe na igwe nchara mkpuchi mkpuchi.
