Manylebau Technegol
1. Geometreg gwefru
- Mae gan y taliadau siâp DP leinin hemisfferig siâp côn. Mae'r leinin o siâp critigol gan ei fod yn cydgyfeirio'r pŵer deunydd sy'n ffrwydro mewn gwlithen neu jet dwys, cyflym iawn. Er enghraifft, mae côn yn gallu creu jet gul, taflunio a all dreiddio'n eithaf dwfn mewn deunydd o darged, er enghraifft, matrics ffynnon olew.
- Mae maint graddnodi'r gwefr wedi'i deilwra'n union ar gyfer mowntio yn achosion mowntio siâp cregyn bylchog. Mae hyn yn hwyluso mowntio ac alinio cywir, sy'n ofynnol ar gyfer gweithredu'n gyson.
2. Math Ffrwydrol
- Darganfuwyd ffrwydron egni uchel ar gyfer y taliadau siâp hyn. Mae'r dewisiadau yma yn glasurol wedi bod yn RDX, acronym ar gyfer yr adran ymchwil ffrwydrol, neu ffrwydron pwynt uchel - toddi - acronym ar gyfer HMX. Gall cyflymderau uchel ac egni tanio, sy'n gallu cynhyrchu gwlithod trawiadol neu jet trawiadol ar gyfer tyllu, gael eu rhannu gan y ffrwydron hyn.
- Mae maint y ffrwydron yn cael ei bwyso'n fanwl gywir mewn perthynas â'r dyfnder a ddymunir o dreiddiad a threiddiad deunydd.
3. CYFLWYNO CARRIER
- Dyluniwyd y taliadau i'w defnyddio ar y cyd â chludwyr cennog, gwag. Y rheswm dros siâp cennog ar gyfer cludwr yw felly gall fod defnydd mwy cryno yn y gofod, a gall wella perfformiadau o daliadau siâp.
- Mae'r taliadau'n cael eu gyrru mewn patrwm a bennwyd ymlaen llaw yng nghilfachau cregyn bylchog y cludwr. Gellir gwneud y patrwm fel ei fod yn arwain at dyllu unffurf yn y deunydd yn ei gyffiniau.
Nodweddion perfformiad
1. Perfformiad treiddiad
- Mae gan y taliadau siâp hyn allu treiddgar mewn dyfnderoedd mawr mewn amrywiaeth o ddeunyddiau. Mewn defnydd da yn y diwydiant petroliwm, mae ganddynt allu treiddgar y tu hwnt i'r casin, y wain sment, ac estyn i mewn i graig y gronfa ddŵr. Mae dyfnder treiddiad yn swyddogaeth o baramedrau fel pŵer ffrwydrol, siâp leinin, a deunydd y targed.
- Gall y gwefr siâp ffurfio gwlithod, a all ffurfio tylliadau wedi'u ffurfio'n dda a glân, sy'n ofynnol ar gyfer llif di-dor o ffynnon.
2. Dibynadwyedd
- Mae gan y taliadau siâp DP lawer iawn o ddibynadwyedd. Mae'r broses o weithgynhyrchu'r taliadau siâp DP hyn yn golygu profion trylwyr felly mae patrwm gweithredu rhagweladwy. Mae dibynadwyedd tanio, cysondeb treiddgar, tymheredd a phwysau amgylcheddol, ymhlith eraill, yn rhai o'r ffactorau y cynhelir prawf arnynt.
- Mae'r defnydd o ddeunyddiau gwych a thechnoleg gweithgynhyrchu newydd yn rhan o wneud yr eitem gyfan yn ddibynadwy iawn.
Proses weithgynhyrchu
1. Gweithgynhyrchu leinin
- Mae'r leinin yn rhan annatod o wefr siâp. Gwneir y leinin fel arfer gan ddefnyddio peiriannu manwl, meteleg powdr, et al. Er enghraifft, mewn meteleg powdr, mae powdr o fetel mewn powdr mân yn cael ei gywasgu mewn siâp a ddymunir, sydd wedyn yn cael ei sintro mewn ymgais i greu leinin solet.
- Dewisir y deunydd leinin yn ofalus ar sail ei fàs, ei hydrinedd, ac ystyriaethau eraill. Gall copr, ei aloion, a/neu tantalwm fod yn ddeunydd o'r fath.
2. Llwytho ffrwydrol
- Mae'r ffrwydron wedi'i bacio rhag ofn y bydd yn gwefru mewn siambr reoledig. Mae'r llwytho wedi'i gwblhau'n broffesiynol ac yn gyfartal gan ddefnyddio peiriannau. Cyflawnir yr ymarferoldeb a'r dwysedd a ddymunir trwy wasgu yn y ffrwydron.
- Mae diogelwch o'r pwys mwyaf wrth lwytho ffrwydron mewn modd er mwyn peidio â ffrwydro ar ddamwain.
3. Cynulliad mewn cludwr
- Ar ôl gweithgynhyrchu'r taliadau siâp hyn, mae'r taliadau siâp hyn wedi'u gosod ar gludwyr cennog, ceugrwm. Mae hon yn broses ofalus o lenwi taliadau wedi'u ffurfio'n dda mewn ceudodau cennog ceugrwm a'i sicrhau.
- Mae archwiliadau ansawdd o bob ffurf yn digwydd ym mhob proses ymgynnull fel bod cynnyrch terfynol yn unol â gofynion penodol.
Paramedrau manwl:
| Gwybodaeth am wefr siâp | Perfformiad API o daliadau siâp | |||||||||
|
Gwn OD |
Theipia ’ |
Pwysau ffrwydrol |
Ffrwydrol |
Gwn wedi'i brofi OD (IN) [mm] |
Dwysedd saethu (SPF) [SPM]|Fasio |
Casin od |
Twll mynediad |
Dreiddiad |
Math o Ddata |
|
|
Taliadau siâp am gynnau cludo gwag cregyn bylchog (Adran 02) |
||||||||||
|
1-3/8 [35] |
Tâl treiddgar dwfn |
1.8 |
Hmx |
1-3/8 [35] |
4 [13]|Gradd 0 |
4-1/2 [114] |
0.17 [4.32] |
4.70 [11.94] |
Api rp -43 |
|
|
1-9/16 [40] |
Tâl treiddgar dwfn iawn |
3.5 |
Hmx |
1-9/16 [40] |
6 [2 0]|0 gradd, 60 gradd |
2-3/8 [60] |
0.20 [5.08] |
12.68 [32.21] |
API RP 19B |
|
|
Tâl treiddgar dwfn |
3.2 |
Rdx |
1-9/16 [40] |
4 [13]|180 gradd |
2-3/8 [60] |
0.23 [5.84] |
6.62 [16.81] |
Api rp -43 |
||
|
Gwefr twll mawr |
3.2 |
Hmx |
1-9/16 [40] |
6 [2 0]|0 gradd |
4-1/2 [114] |
0.41 [10.41] |
3.23 [8.20] |
Api rp -43 |
||
|
2 [51] |
Tâl treiddgar dwfn iawn |
4.0 |
Hmx |
2 [51] |
6 [20]|60 gradd |
2-7/8 [73] |
0.21 [5.33] |
19.05 [48.39] |
API RP 19B |
|
|
Tâl treiddgar dwfn iawn |
7.0 |
Hmx |
2 [51] |
6 [20]|60 gradd |
2-7/8 [73] |
0.29 [7.37] |
26.07 [66.22] |
API RP 19B |
||
|
Gwefr "twll da" |
6.5 |
Rdx |
2 [51] |
4 [13]|60 gradd |
2-7/8 [73] |
0.36 [9.14] |
11.82 [30.02] |
Api rp -43 |
||
|
2-1/2 [64] |
Tâl treiddgar dwfn iawn |
12.0 |
Hmx |
2-1/2 [64] |
6 [20]|60 gradd |
3-1/2 [89] |
0.33 [8.38] |
31.26 [79.40] |
API RP 19B |
|
|
Gwefr "twll da" |
12.0 |
Hmx |
2-1/2 [64] |
6 [20]|60 gradd |
3-1/2 [89] |
0.45 [11.43] |
20.31 [51.99] |
API RP 19B |
||
|
Gwefr twll mawr |
11.0 |
Rdx |
2-1/2 [64] |
4 [13]|Gradd 0 |
4-1/2 [114] |
0.59 [14.99] |
4.85 [12.32] |
Api rp -43 |
||
|
2-3/4 [70] |
Tâl treiddgar dwfn iawn |
12.0 |
Hmx |
2-3/4 [70] |
6 [20]|60 gradd |
4-1/2 [114] |
0.36 [9.14] |
31.90 [81.03] |
API RP 19B |
|
|
Tâl treiddgar dwfn iawn |
16.0 |
Hmx |
2-3/4 [70] |
6 [20]|60 gradd |
4-1/2 [114] |
0.38 [9.65] |
35.94 [91.29] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
18.0 |
Hmx |
2-3/4 [70] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
36.22 [92.00] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
18.0 |
Hmx |
2-7/8 [73] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
36.22 [92.00] |
API RP 19B |
||
|
Tâl twll cyson equafrac |
12.0 |
Rdx |
2-3/4 [70] |
6 [20]|60 gradd |
4-1/2 [114] |
0.30 [7.62] |
24.00 [60.96] |
API RP 19B |
||
|
Tâl twll cyson equafrac |
16.0 |
Rdx |
2-3/4 [70] |
6 [20]|60 gradd |
4-1/2 [114] |
0.32 [8.13] |
25.79 [65.51] |
API RP 19B |
||
|
Gwefr twll mawr |
11.0 |
Rdx |
2-1/2 [64] |
4 [13]|Gradd 0 |
4-1/2 [114] |
0.59 [14.99] |
4.85 [12.32] |
Api rp -43 |
||
|
Gwefr twll mawr |
15.0 |
Rdx |
2-3/4 [70] |
6 [20]|60 gradd |
4-1/2 [114] |
0.72 [18.29] |
4.67 [11.86] |
Api rp -43 |
||
|
3-1/8 [79] |
Tâl treiddgar dwfn iawn |
21.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.42 [10.67] |
44.19 [112.24] |
API RP 19B |
|
|
Tâl treiddgar dwfn iawn |
22.7 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.46 [11.68] |
41.17 [104.57] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
21.0 |
Hmx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.37 [9.40] |
35.97 [91.36] |
API RP 19B |
||
|
Tâl twll cyson equafrac |
23.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.40 [10.16] |
24.75 [62.87] |
API RP 19B |
||
|
Tâl treiddgar dwfn |
12.0 |
Hmx |
3-1/8 [79] |
12 [39]|135/45 gradd |
5 [127] |
0.31 [7.87] |
19.82 [50.34] |
Api rp -43 |
||
|
Tâl treiddgar dwfn |
19.0 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
22.04 [55.98 |
Api rp -43 |
||
|
Tâl treiddgar dwfn |
22.7 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.44 [11.18] |
21.25 [53.98] |
Api rp -43 |
||
|
Gwefr "twll da" |
19.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.55 [13.97] |
29.18 [74.12] |
API RP 19B |
||
|
Gwefr "twll da" |
21.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.56 [14.22] |
29.23 [74.24] |
API RP 19B |
||
|
Gwefr "twll da" |
21.0 |
Hmx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.46 [11.68] |
22.02 [55.93] |
API RP 19B |
||
|
Gwefr "twll da" |
22.7 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.59 [14.99] |
29.42 [74.73] |
API RP 19B |
||
|
Gwefr twll mawr |
12.0 |
Rdx |
3-3/8 [86] |
12 [39]|140/20 gradd |
5 [127] |
0.55 [13.97] |
4.68 [11.89] |
API RP 19B |
||
|
Gwefr twll mawr |
12.0 |
Hmx |
3-1/8 [79] |
12 [39]|140/20 gradd |
5 [127] |
0.60 [15.24] |
5.73 [14.55] |
Api rp -43 |
||
|
Gwefr twll mawr |
21.0 |
Rdx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.67 [17.02] |
5.49 [13.94] |
Api rp -43 |
||
|
Gwefr twll mawr |
22.7 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.70 [17.78] |
6.18 [15.70] |
Api rp -43 |
||
|
3-3/8 [86] |
Tâl treiddgar dwfn iawn |
19.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.38 [9.65] |
45.89 [116.56] |
API RP 19B |
|
|
Tâl treiddgar dwfn iawn |
21.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.42 [10.67] |
44.19 [112.24] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
22.7 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.45 [11.43] |
42.21 [107.21] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
26.0 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
50.05 [127.13] |
API RP 19B |
||
|
Tâl twll cyson equafrac |
23.0 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
5-1/2 [140] |
0.38 [9.65] |
31.59 [80.25] |
API RP 19B |
||
|
Tâl treiddgar dwfn |
12.0 |
Hmx |
3-1/8 [79] |
12 [39]|135/45 gradd |
5 [127] |
0.31 [7.87] |
19.82 [50.34] |
Api rp -43 |
||
|
Tâl treiddgar dwfn |
19.0 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
22.04 [55.98] |
Api rp -43 |
||
|
Tâl treiddgar dwfn |
22.7 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.44 [11.18] |
21.25 [53.98] |
Api rp -43 |
||
|
Tâl treiddgar dwfn |
22.7 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.36 [9.14] |
35.63 [90.50] |
Api rp -43 |
||
|
Gwefr "twll da" |
25.0 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.57 [14.48] |
29.81 [75.72] |
Api rp -43 |
||
|
Gwefr "twll da" |
19.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.55 [13.97] |
29.18 [74.12] |
API RP 19B |
||
|
Gwefr "twll da" |
22.7 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.59 [14.99] |
29.42 [74.73] |
API RP 19B |
||
|
Gwefr twll mawr |
12.0 |
Hmx |
3-3/8 [86] |
12 [39]|140/20 gradd |
5 [127] |
0.55 [13.97] |
4.68 [11.89] |
API RP 19B |
||
|
Gwefr twll mawr |
12.0 |
Hmx |
3-3/8 [86] |
12 [39]|135/45 gradd |
5-1/2 [140] |
0.61 [15.49] |
5.89 [14.96] |
Api rp -43 |
||
|
Gwefr twll mawr |
22.7 |
Rdx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.68 [17.27] |
7.10 [18.03] |
API RP 19B |
||
|
Gwefr twll mawr |
22.7 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.70 [17.78] |
6.18 [15.70] |
Api rp -43 |
||
|
4 [102] |
Tâl treiddgar dwfn iawn |
21.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.42 [10.67] |
44.19 [112.24] |
API RP 19B |
|
|
Tâl treiddgar dwfn iawn |
22.7 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.45 [11.43] |
42.21 [107.21] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
26.0 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
50.05 [127.13] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
38.5 |
Hmx |
4 [102] |
4 [13]|90 gradd |
5-1/2 [140] |
0.44 [11.18] |
62.81 [159.54] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
21.0 |
Hmx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.37 [9.40] |
35.97 [91.36] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
38.5 |
Hmx |
4-1/2 [114] |
5 [16]|60 gradd |
7 [178] |
0.46 [11.68] |
55.70 [141.48] |
API RP 19B |
||
|
Tâl treiddgar dwfn |
19.0 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
22.04 [55.98] |
Api rp -43 |
||
|
Tâl treiddgar dwfn |
22.7 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.44 [11.18] |
21.25 [53.98] |
Api rp -43 |
||
|
Tâl treiddgar dwfn |
22.7 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.36 [9.14] |
35.63 [90.50] |
Api rp -43 |
||
|
Gwefr "twll da" |
19.0 |
Hmx |
3-1/8 [79] |
6 [20]|60 gradd |
4-1/2 [114] |
0.55 [13.97] |
29.18 [74.12] |
API RP 19B |
||
|
Gwefr "twll da" |
22.7 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.59 [14.99] |
29.42 [74.73] |
API RP 19B |
||
|
Gwefr "twll da" |
25.0 |
Rdx |
3-3/8 [86] |
6 [20]|60 gradd |
5-1/2 [140] |
0.56 [14.22] |
35.61 [90.45] |
Api rp -43 |
||
|
Gwefr "twll da" |
21.0 |
Hmx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.46 [11.68] |
22.02 [55.93] |
API RP 19B |
||
|
Gwefr twll mawr |
21.0 |
Rdx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.67 [17.02] |
5.49 [13.94] |
Api rp -43 |
||
|
4-1/2 [114] |
Tâl treiddgar dwfn iawn |
26.0 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
50.05 [127.13] |
API RP 19B |
|
|
Tâl treiddgar dwfn iawn |
21.0 |
Hmx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.37 [9.40] |
35.97 [91.36] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
38.5 |
Hmx |
4-1/2 [114] |
5 [16]|60 gradd |
7 [178] |
0.46 [11.68] |
55.70 [141.48] |
API RP 19B |
||
|
Gwefr "twll da" |
25.0 |
Rdx |
4 [102] |
6 [20]|60 gradd |
5-1/2 [140] |
0.56 [14.22] |
35.61 [90.45] |
Api rp -43 |
||
|
Gwefr "twll da" |
21.0 |
Hmx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.46 [11.68] |
22.02 [55.93] |
API RP 19B |
||
|
Gwefr twll mawr |
21.0 |
Rdx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.67 [17.02] |
5.49 [13.94] |
Api rp -43 |
||
|
Gwefr twll mawr |
22.7 |
Hmx |
4-5/8 [117] |
16 [52]|140/20 gradd |
7 [178] |
0.79 [20.07] |
7.06 [17.93] |
API RP 19B |
||
|
4-5/8 [117] |
Tâl treiddgar dwfn iawn |
26.0 |
Hmx |
3-3/8 [86] |
6 [20]|60 gradd |
4-1/2 [114] |
0.41 [10.41] |
50.05 [127.13] |
API RP 19B |
|
|
Tâl treiddgar dwfn iawn |
21.0 |
Hmx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.37 [9.40] |
35.97 [91.36] |
API RP 19B |
||
|
Tâl treiddgar dwfn iawn |
38.5 |
Hmx |
4-1/2 [114] |
5 [16]|60 gradd |
7 [178] |
0.46 [11.68] |
55.70 [141.48] |
API RP 19B |
||
|
Gwefr "twll da" |
25.0 |
Rdx |
4 [102] |
6 [20]|60 gradd |
5-1/2 [140] |
0.56 [14.22] |
35.61 [90.45] |
Api rp -43 |
||
|
Gwefr "twll da" |
21.0 |
Hmx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.46 [11.68] |
22.02 [55.93] |
API RP 19B |
||
|
Gwefr twll mawr |
21.0 |
Rdx |
4-1/2 [114] |
12 [39]|135/45 gradd |
7 [178] |
0.67 [17.02] |
5.49 [13.94] |
Api rp -43 |
||
|
Gwefr twll mawr |
22.7 |
Hmx |
4-5/8 [117] |
16 [52]|140/20 gradd |
7 [178] |
0.75 [19.05] |
6.11 [15.52] |
API RP 19B |
||
|
Gwefr twll mawr |
28.0 |
Bh |
5 [127] |
12 [39]|150/30 gradd |
7 [178] |
0.80 [20.32] |
8.22 [20.88] |
Api rp -43 |
||
|
7 [178] |
Tâl treiddgar dwfn iawn |
38.5 |
Hmx |
7 [178] |
12 [39]|135/45 gradd |
9-5/8 [245] |
0.40 [10.16] |
49.60 [125.98] |
API RP 19B |
|
|
Gwefr "twll da" |
38.5 |
Rdx |
7 [178] |
12 [39]|135/45 gradd |
9-5/8 [245] |
0.75 [19.06] |
28.54 [72.49] |
Api rp -43 |
||
|
Gwefr twll mawr |
38.8 |
Rdx |
7 [178] |
12 [39]|135/45 gradd |
9-5/8 [245] |
1.10 [27.94] |
10.37 [26.34] |
API RP 19B |
||
|
Gwefr twll mawr |
45.0 |
Rdx |
7 [178] |
18 [55]|140/20 gradd |
9-5/8 [245] |
1.20 [30.48] |
8.75 [22.23] |
API RP 19B |
||
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