Ha o etsa liphaephe tse chitja tsa litlhaloso tse fapaneng, liforomo tsa karolo e etsang karolo ea mochini oa rona oa liphaephe tsa ERW kaofela lia arolelanoa 'me li ka fetoloa ka bohona. Tšobotsi ena e tsoetseng pele e u lumella ho fetola pakeng tsa boholo bo fapaneng ba liphaephe ntle le tlhoko ea ho fetola li-mold ka letsoho. Nahana ka nako le boiteko boo u bo bolokang ka ho qoba mathata a liphetoho tse etsahalang khafetsa tsa hlobo.
Mochini oa rona oa ho lokisa lipeipi oa ERW o entsoe ka ho nahana ka bokhoni le boiketlo. Bokhoni ba ho lokisa ka boiketsetso bo bolela hore ts'ebetso ea hau ea tlhahiso e ba bonolo le ho nolofalloa haholoanyane. Sena ha se u bolokele nako ea bohlokoa ea tlhahiso feela, empa hape se fokotsa nako ea ho se sebetse eo hangata e amanang le liphetoho tsa hlobo ka letsoho. Bokhoni bona bo fetolela ka ho toba ho boloka litšenyehelo, kaha nako e nyane e sebelisoa ho lokisa 'me nako e ngata e neheloa tlhahisong ea' nete.
Ho feta moo, sistimi e arolelanoang ea hlobo e fokotsa tlhoko ea lethathamo le leholo la hlobo tse fapaneng, tse ka jang chelete e ngata le tse jang sebaka. Ka mochini oa rona oa lipompo tsa ERW, o hloka feela palo e lekanyelitsoeng ea hlobo ho sebetsana le mefuta e mengata ea litlhaloso tsa liphaephe. Sena ha se u bolokele chelete feela ho reka hlobo tse ling empa hape se lokolla sebaka sa polokelo setsing sa hau.
Molemo o mong o moholo oa tšobotsi ea phetoho ea othomathiki ea mochini oa rona oa li-tube oa ERW ke ho nepahala hoo o ho tlisang ts'ebetsong ea tlhahiso. Liphoso tsa batho litokisong tsa letsoho lia felisoa, ho netefatsa hore phaephe e 'ngoe le e 'ngoe e hlahisoang e fihlela litlhoko tse nepahetseng tse hlokahalang. Boemo bona bo phahameng ba ho nepahala bo ntlafatsa boleng ba sehlahisoa sa hau sa ho qetela, bo etsa hore se ipiletse haholoanyane ho bareki ba hau le ho u fa monyetla oa tlholisano 'marakeng.
Joale, u tsilatsila eng? Ho tsetela mochining oa rona oa lipeipi tsa ERW ke qeto e bohlale e tla u tsoela molemo mabapi le bokhoni le poloko ea litšenyehelo. Ka tšobotsi ea eona ea ho lokisa ka boiketsetso le sistimi e arolelanoang ea hlobo, u ka ntlafatsa ts'ebetso ea hau ea tlhahiso, ua fokotsa nako ea ho sebetsa, 'me ua ntlafatsa boleng ba sehlahisoa. U se ke ua fetoa ke monyetla ona oa ho ntlafatsa bokhoni ba hau ba tlhahiso le ho lula u le pele lefatšeng la tlholisano la tlhahiso ea lipeipi. Etsa khetho e bohlale kajeno 'me u bone phapang eo mochini oa rona oa lipeipi tsa ERW o ka e etsang bakeng sa khoebo ea hau.
| MELAO EA TŠEBELETSO EA TUBE EA ERW | |||||
| Mohlala | Rphaephe ea lebota mm | Sekwerephaephe mm | Botenya mm | Mosebetsi o potlakileng m/motsotso | |
| ERW20 | Ф8-Ф20 | 6x6-15×15 | 0.3-1.5 | 120 | Bala haholoanyane |
| ERW32 | Ф10-Ф32 | 10×10-25×25 | 0.5-2.0 | 120 | |
| ERW50 | Ф20-Ф50 | 15×15-40×40 | 0.8-3.0 | 120 | |
| ERW76 | Ф32-Ф76 | 25×25-60×60 | 1.2-4.0 | 120 | |
| ERW89 | Ф42-Ф89 | 35×35-70×70 | 1.5-4.5 | 110 | |
| ERW114 | Ф48-Ф114 | 40×40-90×90 | 1.5-4.5 | 65 | |
| ERW140 | Ф60-Ф140 | 50×50-110×110 | 2.0-5.0 | 60 | |
| ERW165 | Ф76-Ф165 | 60×60-130×130 | 2.0-6.0 | 50 | |
| ERW219 | Ф89-Ф219 | 70×70-170×170 | 2.0-8.0 | 50 | |
| ERW273 | Ф114-Ф273 | 90×90-210×210 | 3.0-10.0 | 45 | |
| ERW325 | Ф140-Ф325 | 110×110-250×250 | 4.0-12.7 | 40 | |
| ERW377 | Ф165-Ф377 | 130×130-280×280 | 4.0-14.0 | 35 | |
| ERW406 | Ф219-Ф406 | 170×170-330×330 | 6.0-16.0 | 30 | |
| ERW508 | Ф273-Ф508 | 210×210-400×400 | 6.0-18.0 | 25 | Bala haholoanyane |
| ERW660 | Ф325-Ф660 | 250×250-500×500 | 6.0-20.0 | 20 | Bala haholoanyane |
| ERW720 | Ф355-Ф720 | 300×300-600×600 | 6.0-22.0 | 20 | Bala haholoanyane |
| TLHAHISO EA PIPE EA TŠEPE E SA KHALE | |||||
| Mohlala | Rphaephe ea lebota mm | Sekwerephaephe mm | Botenya mm | Lebelo la ho sebetsa m/motsotso | |
| SS25 | Ф6-Ф25 | 5×5-20×20 | 0.2-0.8 | 10 | Bala haholoanyane |
| SS32 | Ф6-Ф32 | 5×5-25×25 | 0.2-1.0 | 10 | Bala haholoanyane |
| SS51 | Ф9-Ф51 | 7×7-40×40 | 0.2-1.5 | 10 | Bala haholoanyane |
| SS64 | Ф12-Ф64 | 10×10-50×50 | 0.3-2.0 | 10 | Bala haholoanyane |
| SS76 | Ф25-Ф76 | 20×20-60×60 | 0.3-2.0 | 10 | Bala haholoanyane |
| SS114 | Ф38-Ф114 | 30×30-90×90 | 0.4-2.5 | 10 | Bala haholoanyane |
| SS168 | Ф76-Ф168 | 60×60-130×130 | 1.0-3.5 | 10 | Bala haholoanyane |
| SS219 | Ф114-Ф219 | 90×90-170×170 | 1.0-4.0 | 10 | Bala haholoanyane |
| SS325 | Ф219-Ф325 | 170×170-250×250 | 2.0-8.0 | 3 | Bala haholoanyane |
| SS426 | Ф219-Ф426 | 170×170-330×330 | 3.0-10.0 | 3 | Bala haholoanyane |
| SS508 | Ф273-Ф508 | 210×210-400×400 | 4.0-12.0 | 3 | Bala haholoanyane |
| SS862 | Ф508-Ф862 | 400×400-600×600 | 6.0-16.0 | 2 | Bala haholoanyane |