Aikace-aikacen casing na mai:

Ana amfani da shi wajen haƙa rijiyar mai galibi a cikin aikin haƙa rijiyar da kuma bayan kammala tallafin bangon rijiyar, domin tabbatar da tsarin haƙa rijiyar da kuma yadda ake gudanar da aikin rijiyar gaba ɗaya bayan kammalawa. Saboda yanayin ƙasa daban-daban, yanayin damuwa na ƙarƙashin ƙasa yana da sarkakiya, kuma cikakken aikin matsin lamba, matsi, lanƙwasawa da jujjuyawa a jikin bututun yana ƙara buƙatu mafi girma ga ingancin rufin. Da zarar rufin ya lalace saboda wani dalili, yana iya haifar da raguwar samar da rijiyar gaba ɗaya, ko ma ɓarawo.

Nau'ikan murfin mai:

A cewar SY/T6194-96 "ƙafafun mai", ana iya raba shi zuwa nau'i biyu: ƙafafun gajere da kuma abin wuyansa da kuma dogon abin zare da kuma abin wuyansa.

Ma'aunin marufi da marufi na mai:

A cewar SY/T6194-96, ya kamata a ɗaure murfin gida da waya ta ƙarfe ko bel ɗin ƙarfe. Ya kamata a yi amfani da zoben kariya daga kowace murfin da zaren wuya da aka fallasa don kare zaren.

Za a samar da maƙallin da zare da abin wuya bisa ga API SPEC 5CT1988 bugu na farko ko kuma a cikin kowane ɗayan nau'ikan ƙarshen bututu masu zuwa: ƙarshen lebur, zaren zagaye ba tare da abin wuya ko abin wuya ba, zaren trapezoidal mai kaifi tare da abin wuya ko ba tare da shi ba, zaren madaidaiciya, sarrafa ƙarshen musamman, ginin zoben hatimi.

Matsayin ƙarfe don ma'aunin man fetur:

Ana iya raba matakin ƙarfe na mai zuwa nau'ikan ƙarfe daban-daban gwargwadon ƙarfin ƙarfen da kansa, wato H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P-110, Q-125, da sauransu.Yanayin rijiya daban-daban, zurfin rijiya, da kuma amfani da ƙarfin ƙarfe shi ma ya bambanta. Ana kuma buƙatar murfin da kansa ya zama mai jure tsatsa a cikin muhallin da ke lalata iska. A wuraren da ke da yanayi mai rikitarwa na ƙasa, ana buƙatar murfin ya kasance mai jure wa murƙushewa.

Tsarin lissafin nauyi na ma'aunin mai kamar haka:

KG/ m = (diamita ta waje – kauri bango) * kauri bango *0.02466

Tsawon murfin mai:

Akwai nau'ikan tsayi guda uku da API ta ƙayyade: R-1 4.88 zuwa 7.62m, R-2 7.62 zuwa 10.36m, R-3 10.36m zuwa mafi tsayi.

Nau'in maƙallin bututun mai:

API 5CTNau'ikan maƙallan bututun mai sun haɗa da STC (maƙallin zagaye na gajere), LTC (maƙallin zagaye mai tsayi), BTC (maƙallin tsani na ɓangare), VAM (maƙallin sarki) da sauran nau'ikan maƙallin.

Duba aikin jiki na ma'aunin man fetur:

(1) A cewar SY/T6194-96. Yin gwajin lanƙwasa (GB246-97) gwajin tensile (GB228-87) da gwajin hydrostatic.

(2) gwajin hydrostatic, gwajin flattening, gwajin tsagewar sulfide, gwajin tauri (sabon sigar ASTME18 ko E10), gwajin tensile, gwajin tasiri mai ratsawa (ASTMA370, ASME23 da sabon sigar ƙa'idodi masu dacewa) bisa ga tanadin Cibiyar Man Fetur ta Amurka APISPEC5CT1988 bugu na farko Ok), ƙayyade girman hatsi (sabon sigar ASTME112 ko wata hanya)

Shigo da fitar da mai a cikin akwatin mai:

(1) Manyan ƙasashen da ake shigo da mai daga ƙasashen waje sune: Jamus, Japan, Romania, Jamhuriyar Czech, Italiya, Burtaniya, Austria, Switzerland, Amurka, Argentina, Singapore suma suna shigo da mai.Ka'idojin shigo da kaya suna nufin ma'aunin Cibiyar Man Fetur ta Amurka API5A, 5AX, 5AC. Matsayin ƙarfe shine H-40, J-55, N-80, P-110, C-75, C-95 da sauransu. Babban ƙayyadaddun bayanai sune 139.77.72R-2, 177.89.19R-2, 244.58.94R-2, 244.510.03R-2, 244.511.05r-2, da sauransu.

(2) Akwai nau'ikan tsayi guda uku da API ta ƙayyade: R-1 shine 4.88 ~ 7.62m, R-2 shine 7.62 ~ 10.36m, R-3 shine 10.36m zuwa tsayi.

(3) Wani ɓangare na kayan da aka shigo da su an yi musu alama da LTC, watau, hannun riga mai ɗaure da zare.

(4) Baya ga ƙa'idodin API, ƙaramin adadin bushing da aka shigo da shi daga Japan ya bi ƙa'idodin masana'antun Japan (kamar Nippon Steel, Sumitomo, Kawasaki, da sauransu), lambobin ƙarfe sune NC-55E, NC-80E, NC-L80, NC-80HE, da sauransu.

(5) A cikin shari'o'in da'awar, akwai lahani kamar baƙar maƙalli, lalacewar ɗaure waya, naɗe jikin bututu, maƙallin da ya karye da kuma tazara mai tsauri daga haƙuri, haɗa ƙimar J saboda haƙuri, da matsalolin ingancin ciki kamar fashewar ƙarfe da ƙarancin ƙarfin amfani na maƙallin.

Kayayyakin injina na kowane nau'in ƙarfe na bututun mai: