Dab tsi yog Tus Qauv Sab Nraud Sab Nraud (OD) Ranges rauASTM B111 C71500 Cov Lus Qhia?
Tsis zoo li cov kav dej kav dej, ASTM B111 tshwj xeeb rauThaum tshav kub kub exchanger thiab condenser tubes. OD ntau yam yog qhov tseeb dua thiab me dua ntawm qhov kawg.
| Hom | OD Ntau (inch) | OD Ntau (mm) | Daim ntawv thov tseem ceeb |
|---|---|---|---|
| Seamless raj | 1/4″ – 3″ | 6.35mm-76.2 hli | Thaum tshav kub kub exchangers, condensers |
| Seamless yeeb nkab | 1/8″ – 12″ | 3.18mm - 304.8 hli | General seawater piping |
| Welded yeeb nkab | 6″ – 24″ | 152.4 hli - 609.6 hli | Loj - kab kab hluav taws kub |
Rau feem ntau marine heat exchanger daim ntawv thov, 5/8 "(15.88 mm) thiab 3/4" (19.05 mm) OD yog ob qhov ntau thiab tsawg tshaj plaws stocked rau ASTM B111 C71500 tooj liab nickel yeeb nkab.
Yog tias koj qhov project cuam tshuamASTM B111 C70600 tooj liab nickel yeeb nkab, tib qhov OD ntau siv - cov qauv ntsuas qhov ntev yog zoo ib yam ntawm ob qho tib si alloys.
Cov Phab Ntsa Thicknesses txhais li cas rau Copper Nickel Tubes?
Copper nickel tubes sivBirmingham Wire Gauge (BWG)los yogStandard Wire Gauge (SWG)- tsis Teem caij tus lej zoo li cov yeeb nkab steel. Qhov no ua rau tsis meej pem.
BWG to Inch/mm Conversion Table (Feem ntau Thicknesses)
| BWG No. | Thickness (hli) | Thickness (hli) | Hom kev siv |
|---|---|---|---|
| 10 BWG | 0.134″ | 3.40mm 3 | Lub luag haujlwm hnyav, siab -siab condensers |
| 11 BWG | 0.120″ | 3.05mm ib | Siab -cov dej hiav txwv txias |
| 12 BWG | 0.109″ | 2.77mm ib | Standard heat exchanger tubes |
| 13 BWG | 0.095″ | 2.41mm ib | General marine kev pab |
| 14 BWG | 0.083″ | 2.11mm 3 | Lub luag haujlwm lub teeb, qis -siab |
| 16 BWG | 0.065″ | 1.65mm 3 | Nyias-wall condensers |
| 18 BWG | 0.049″ | 1.24mm 3 | Tsuas yog rau qhov tsis tshua muaj siab |
Thaum twg Koj Yuav Tsum Siv Teem Sijhawm (SCH) Hloov BWG?
Raularger diameter pipes (>3 nti), ASTM B111 tso cai Teem caij npe zoo ib yam li cov yeeb nkab steel.
| Teem caij | Phab ntsa Thickness (inch) | Hom OD Range | Kev ntsuas siab (kwv yees, dej) |
|---|---|---|---|
| SCH 5 | 0.065″ – 0.083″ | 6″ – 12″ | Tsawg siab (<150 psi) |
| SCH 10 | 0.109″ – 0.134″ | 6″ – 24″ | Nruab nrab siab (150-300 psi) |
| SCH 40 | 0.154″ – 0.250″ | 6″ – 12″ | Siab siab (300-600 psi) |
| SCH 80 | 0.218″ – 0.375″ | 6″ – 12″ | Extra high pressure (>600 psi) |
Rau qhov hluav taws kub lub nplhaib tseem ceeb ntawm cov ntug dej hiav txwv, SCH 40 lossis SCH 80 hauv ASTM B111 C71500 tooj liab nickel yeeb nkab yog qhov yuav tsum tau ua. SCH 10 yuav tsis muaj kev cuam tshuam los yog kev vibration.
Nco tseg:C70600 tsis tshua siv nyob rau hauv SCH 80 vim tias nws lub zog qis ua rau cov phab ntsa tuab tsis zoo - ntawm qib siab, C71500 yog qhov kev xaiv raug.
Dab tsi yog Dimensional Tolerances Koj Yuav Tsum Tshawb Xyuas?
| Parameter | Tolerance (Seamless Tube) | Nco tseg |
|---|---|---|
| OD (tsawg dua lossis sib npaug rau 1 ") | ± 0.004 "(0.10 hli) | Qhov tseem ceeb rau lub raj xa ntawv drilling |
| OD (1 "- 3") | ± 0.006 "(0.15 hli) | - |
| Phab ntsa thickness | ±10% | Qhov tsawg kawg nkaus phab ntsa tsis tuaj yeem poob qis dua 90% ntawm nominal |
| Ntev | +1/8″ / -0″ | Rau U- khoov hlab, ceg ntev kam rau ua ± 1/16 " |
Yuav Ua Li Cas Xaiv Cov Phab Ntsa Thickness Zoo rau Koj Cov Dej Hiav Txwv?
Xaiv 10 lossis 11 BWG / SCH 80 yog:
Ua haujlwm siab> 500 psi
External mechanical loads (piv txwv li, yeeb nkab clamped rau vibrating qauv)
Xuab zeb los yog abrasive hais tam sim no (seroion pub)
Yav tom ntej reaming los yog threading yuav tsum tau
Xaiv 13 lossis 14 BWG / SCH 10 yog:
Siab siab <150 psi
Ntxuav dej hiav txwv nkaus xwb
Tsis muaj kev vibration
Tus nqi -sensitive project
Xaiv 16 BWG nkaus xwb yog tias:
Cov dej tshiab los yog kho cov dej txias
Siab siab <50 psi
Tsis yog rau dej hiav txwv- nyias nyias rau pitting nyiaj
Dab tsi yog Qhov Feem Ntau Cov Tshuag Loj Muaj?
| OD (hauv) | BWG | Yam Length (ft) | Daim Ntawv Thov Kev Sib Tham |
|---|---|---|---|
| 5/8″ | 14 BWG | 20ft ib | Me me marine condensers |
| 3/4″ | 13 BWG | 20ft ib | Standard kub exchangers |
| 1″ | 12 BWG | 20ft ib | Cov cua txias loj |
| 1.5″ | 11 BWG | 20ft ib | Siab -cov dej hiav txwv txias |
| 2″ | SCH 10 | 20ft ib | Hluav taws kub ceg |
| 4″ | SCH 40 | 20ft ib | Offshore platform tseem ceeb risers |
| 8″ | SCH 40 | 20ft ib | Subsea cooling dej tau txais |
FAQ
Q1: Kuv puas tuaj yeem siv cov kav hlau xa xov tooj kom xaj tooj liab nickel yeeb nkab?
Yog lawm, tab sis tsuas yog rau OD Ntau dua lossis sib npaug ntawm 6 ntiv tes.Hauv qab 6 ntiv tes, ASTM B111 siv BWG, tsis yog Teem sijhawm. Ib txwm qhia "BWG" rau cov raj hauv qab 6 "OD.
Q2: Qhov txawv ntawm BWG thiab SWG yog dab tsi?
BWG yog me ntsis tuab dua SWG rau tib tus lej ntsuas.Piv txwv li, 14 BWG=0.083″; 14 SWG = 0.080". Feem ntau ASTM B111 xaj ua ntej rau BWG tshwj tsis yog SWG tau thov meej meej.
Q3: Cov phab ntsa tuab twg yog qhov zoo tshaj plaws rau kev hloov pauv tshiab desalination cog?
13 BWG for C71500; 12 BWG for C70600.Desalination brine yog nruj heev - yeej tsis siv 16 BWG los yog nyias.
Q4: Puas yog phab ntsa tuab txhais tau tias zoo dua corrosion tsis kam?
Yog, tab sis tsuas yog mus rau ib qho chaw.Corrosion tus nqi yog linear, yog li 0.109 "phab ntsa kav ntev li 30% ntev dua 0.083" phab ntsa hauv tib qhov chaw. Tab sis dhau 0.134 ", ntxiv thickness muab txo qis rov qab.
Q5: ASTM B111 C71500 tooj liab nickel yeeb nkab puas tuaj yeem khoov nrog cov qauv yeeb nkab benders?
Yog, tab sis nrog lub vojvoog loj dua.Rau 3/4 "OD 13 BWG, yam tsawg kawg nkaus txias khoov vojvoog yog 3x OD. Rau 12 BWG, siv 4x OD. Kub dabtsi yog khoov zoo dua rau cov phab ntsa tuab.
Q6: Kuv yuav ua li cas txheeb xyuas cov phab ntsa tuab ntawm cov yeeb nkab xa?
Siv lub ntsuas ntsuas ultrasonic thickness. Measure at four points around the circumference and both ends. Reject if any single reading is >10% hauv qab nominal.
Q7: Puas muaj qhov sib txawv qhov hnyav ntawm ib lub 'meter' ntawm C71500 thiab C70600 ntawm tib qhov ntev?
Yog, me me heev.C71500 muaj qhov ceev dua me ntsis (8.94 g / cm³ vs 8.91 g / cm³). Rau 100-meter khiav ntawm 1″ OD 13 BWG, qhov sib txawv yog tsawg dua 2 kg - negligible.
Q8: Dab tsi yog qhov ntev tshaj plaws rau seamless ASTM B111 C71500?
65 ko taw (19.8 meters) rau OD Tsawg dua lossis sib npaug li 1 nti.Rau txoj kab uas hla loj, 40 ko taw yog qhov raug. Ntev ntev yuav tsum tau welded yeeb nkab.
Q9: Kuv puas tuaj yeem muab cov raj C71500 thiab C70600 rau tib lub raj?
Yog, dimensionally lawv haum.Tab sis qhov sib txawv thermal expansion yog negligible. Qhov teeb meem tiag tiag yog galvanic peev xwm - lawv nyob ze txaus (ob qho tib si tooj liab-raws li) yog li tsis muaj teeb meem.
Q10: Lub phab ntsa thickness twg kuv yuav tsum tau npaj ua khoom seem rau ntau lub nkoj?
1″ OD, 13 BWG in C71500.Nws npog 70% ntawm cov khoom siv hluav taws xob sib hloov retubes. RauASTM B111 C70600 tooj liab nickel yeeb nkab, stock 14 BWG es.
