Píob Líne
Úsáidtear é chun gás, uisce agus ola a iompar i dtionscail gháis nádúrtha agus araile.
Cásáil:Is píopa mór-trastomhas é an cásáil a fheidhmíonn mar choimeádaí struchtúrach do bhallaí toibreacha ola agus gáis, nó tolladh tobair. Cuirtear isteach i tolladh tobair é agus déantar é a stroighin chun foirmíochtaí fodhromchla agus an tobar a chosaint ó thitim agus chun ligean don sreabhán druileála dul i gcúrsaíocht agus eastóscadh a dhéanamh.Tá balla mín ag Píopaí Cásála Cruach agus neart toraidh íosta de 35,000 psi.
Feadánra: Is píopa é feadánra a úsáidtear chun amhola agus gás nádúrtha a iompar ó chiseal ola nó gáis go dtí an dromchla tar éis an druileála a bheith críochnaithe.Déantar é chun an brú a ghintear ón bpróiseas eastósctha a sheasamh.Déantar feadánra ar an mbealach céanna le casáil, ach amháin go gcuirtear próiseas breise ar a dtugtar "trína chéile" i bhfeidhm chun na píopaí a thiús.
Anailís Cheimiceach (%):
Caighdeán | Cineál píopa | Aicme | Grád | C | Si | Mn | P | S | V | Nb | Ti |
uas | uas | uas | uas | uas | uas | uas | uas | ||||
API SPEC 5L | SMLS | PLS1 | L245 B L290 X42 L320 X46 L360 X52 L390 X56 L415 X60 L450 X65 L485 X70 L245N BN | 0.28 0.28 0.28 0.28 0.28 0.28 0.28 0.28 0.24 | 0.4 | 1.20 1.30 1.40 1.40 1.40 1.40 1.40 1.40 1.20 | 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.025 | 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.015 | ——— | ——— | 0. 04 |
PLS2 | L290N X42N | 0. 24 | 0.4 | 1.2 | 0. 025 | 0. 015 | 0. 06 | 0. 05 | 0. 04 | ||
L320N X46N | 0. 24 | 0.4 | 1.4 | 0. 025 | 0. 015 | 0. 07 | 0. 05 | 0. 04 | |||
L360N X52N | 0. 24 | 0. 45 | 1.4 | 0. 025 | 0. 015 | 0.1 | 0. 05 | 0. 04 | |||
L390N X56N | 0. 24 | 0. 45 | 1.4 | 0. 025 | 0. 015 | 0.1 | 0. 05 | 0. 04 | |||
L415N X60N | 0. 24 | 0. 45 | 1.4 | 0. 025 | 0. 015 | 0.1 | 0. 05 | 0. 04 | |||
WELD | PLS1 | L245 B | 0. 26 | - | 1.2 | - | 0. 03 | 0. 03 | - | - | |
L290 X42 | 0. 26 | - | 1.3 | - | 0. 03 | 0. 03 | - | - | |||
L320 X46 | 0. 26 | - | 1.4 | - | 0. 03 | 0. 03 | - | - | |||
L360 X52 | 0. 26 | - | 1.4 | - | 0. 03 | 0. 03 | - | - | |||
L390 X56 | 0. 26 | - | 1.4 | - | 0. 03 | 0. 03 | - | - | |||
L415 X60 | 0. 26 | - | 1.4 | - | 0. 03 | 0. 03 | - | - | |||
L450 X65 | 0. 26 | - | 1. 45 | - | 0. 03 | 0. 03 | - | - | |||
L485 X70 | 0. 26 | - | 1.65 | - | 0. 03 | 0. 03 | - | - | |||
PLS2 | L245M BM | 0.22 | 0. 45 | 1.2 | 0. 025 | 0. 015 | 0. 05 | 0. 05 | 0. 04 | ||
L290M X42M | 0.22 | 0. 45 | 1.3 | 0. 025 | 0. 015 | 0. 05 | 0. 05 | 0. 04 | |||
L320M X46M | 0.22 | 0. 45 | 1.3 | 0. 025 | 0. 015 | 0. 05 | 0. 05 | 0. 04 | |||
L360M X52M | 0.22 | 0. 45 | 1.4 | 0. 025 | 0. 015 | - | - | - | |||
L390M X56M | 0.22 | 0. 45 | 1.4 | 0. 025 | 0. 015 | - | - | - | |||
L415M X60M | 0. 12 | 0. 45 | 1.6 | 0. 025 | 0. 015 | - | - | - | |||
L450M X65M | 0. 12 | 0. 45 | 1.6 | 0. 025 | 0. 015 | - | - | - | |||
L485M X70M | 0. 12 | 0. 45 | 1.7 | 0. 025 | 0. 015 | - | - | - | |||
L555M X80M | 0. 12 | 0. 45 | 1.85 | 0. 025 | 0. 015 | - | - | - |
Airíonna Meicniúla:
Caighdeán | Aicme | Grád | neart toraidh nach lú ná (MPa) | Neart teanntachta (MPa) | Fadú(%) | YS/TS | |
API SPEC 5L ISO 3183 | PLS1 | L245B | nóim | 245 | 415 | b | - |
L290X42 | nóim | 290 | 415 | b | - | ||
L320X46 | nóim | 320 | 435 | b | - | ||
L360X52 | nóim | 360 | 460 | b | - | ||
L390X56 | nóim | 390 | 490 | b | - | ||
L415X60 | nóim | 415 | 520 | b | - | ||
L450X60 | nóim | 450 | 535 | b | - | ||
L485X70 | nóim | 485 | 570 | b | - | ||
PLS2 | L245N BN | nóim | 245 | 415 | b | - | |
L245M BM | uas | 450 | 760 | b | 0. 93 | ||
L290NX42N | nóim | 290 | 415 | b | - | ||
L290MX42M | uas | 495 | 760 | b | 0. 93 | ||
L320NX46N | nóim | 320 | 435 | b | - | ||
L320MX46M | uas | 525 | 760 | b | 0. 93 | ||
L360NX52N | nóim | 360 | 460 | b | - | ||
L360MX52M | uas | 530 | 760 | b | 0. 93 | ||
L390NX56N | nóim | 390 | 490 | b | - | ||
L390MX56M | uas | 545 | 760 | b | 0. 93 | ||
L415NX60N | nóim | 415 | 520 | b | - | ||
L415MX60M | uas | 565 | 760 | b | 0. 93 | ||
L450MX65M | nóim | 450 | 535 | b | - | ||
uas | 600 | 760 | b | 0. 93 | |||
L485MX70M | nóim | 485 | 570 | b | - | ||
uas | 635 | 760 | b | 0. 93 | |||
L555MX80M | nóim | 555 | 625 | b | - | ||
uas | 705 | 825 | b | 0. 93 |
Cruas:
Caighdeán | Grád | Tionchar íosta Trasnach comhlacht Píob | Tionchar íosta trasna an táthaithe (J) | |||||
(J) | ||||||||
D=508 | 508mm | 762mm | 914mm | 1219mm | D<1422mm | D=1422mm | ||
API SPEC 5L | =L415×60 | 27(20) | 27(20) | 40(30) | 40(30) | 40(30) | 27(20) | 40(30) |
>L415×60 | 27(20) | 27(20) | 40(30) | 40(30) | 54(40) | 27(20) | 40(30) | |
=L450×65 | ||||||||
>L450×65 | 27(20) | 27(20) | 40(30) | 40(30) | 54(40) | 27(20) | 40(30) | |
=L485×70 | ||||||||
>L485×70 | 40(30) | 40(30) | 40(30) | 40(30) | 54(40) | 27(20) | 40(30) | |
=L555×80 |
Nóta:(1) Beidh na luachanna sa tábla oiriúnach don sampla caighdeánach lánmhéide.
(2) Is iad na luachanna taobh istigh lúibín an luach aonair íosta, is lúibín lasmuigh an meánluach.
(3) Teocht Tástála: 0°C.
Péint Uiscebhunaithe Frith-chreimeadh