Pipe Size tau teev tseg nrog ob tus lej tsis-dimensional:
Nominal Pipe Size (NPS) rau txoj kab uas hla raws li ntiv tes.
Teem caij Number (SCH kom qhia cov phab ntsa thickness ntawm cov yeeb nkab.
Ob qhov loj thiab lub sijhawm yuav tsum tau hais kom meej ib qho ntawm cov yeeb nkab.
Nominal Pipe Size (NPS) yog tam sim no North American Txheej txheem ntau thiab tsawg rau cov kav dej siv rau qhov siab thiab qis thiab kub.Kev sib tham ntxiv txog qhov no nyob ntawm no.
Iron Pipe Size (IPS) yog tus qauv ua ntej tshaj NPS los xaiv qhov loj.Qhov loj yog kwv yees hauv txoj kab uas hla ntawm cov yeeb nkab hauv inches.Txhua lub yeeb nkab muaj ib lub thickness, lub npe (STD) Standard los yog (STD.WT.) Standard Weight.Thaum lub sijhawm ntawd tsuas muaj 3 phab ntsa thicknesses.Thaum Lub Peb Hlis Ntuj xyoo 1927, Lub Koom Haum American Standards Association tau tsim cov txheej txheem uas tsim cov phab ntsa tuab raws li cov kauj ruam me me ntawm qhov ntau thiab tsawg thiab qhia Nominal Pipe Size uas hloov Iron Pipe Size.
Teem sijhawm tus naj npawb rau phab ntsa thickness ranges ntawm SCH 5, 5S, 10, 10S, 20, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160, STD, XS (Ntxiv Strong) THIAB XXS (Double Muaj zog).
Cov ntsiab lus ntawm cov yeeb nkab thiab Tubing
BPE - Dub Plain End Pipe
BTC - Dub Threaded & Coupled
GPE - Galvanized Plain End
GTC - Galvanized Threaded & Coupled
TOE – Threaded One End
Pipe Coatings & Finishes:
Galvanized - Npog nrog zinc txheej tiv thaiv ntawm cov hlau los tiv thaiv cov khoom los ntawm xeb.Cov txheej txheem tuaj yeem yog kub-dip-galvanizing qhov twg cov khoom yog dipped nyob rau hauv molten zinc los yog Electro-Galvanized qhov twg cov hlau los ntawm cov yeeb nkab yog galvanized thaum lub sij hawm tsim los ntawm ib tug electro-chemical tshuaj tiv thaiv.
Uncoated - Uncoated yeeb nkab
Dub Coated - Coated nrog tsaus xim hlau-oxide
Liab Primed -Liab Oxide Primed siv los ua lub hauv paus lub tsho rau cov hlau ferrous, muab cov hlau thiab hlau ua txheej txheej tiv thaiv
