Raws li ib tug tseem ceeb ceg ntawm valve technology,pob li qubnrhiav kev siv dav dav thoob plaws ntau qhov kev lag luam. Txawm hais tias lawv yog me me - tho lub pob tooj dag lossis loj - tho qhov flanged pob li qub, lawv ua lub luag haujlwm tseem ceeb hauv lawv cov ntsiab lus.
Pob li qub tuaj yeem muab faib ua ntau txoj hauv kev; ntawm no, peb feem ntau qhia txog plaub hom kev faib tawm. Ua ntej, raws li cov qauv ntawm lub pob nws tus kheej, lawv tuaj yeem muab faib uafloating pob li qubthiabtrunnion-mounted (fixed) pob li qub. Raws li kev faib tawm no, cov khoom tsim muaj xws liflanged pob valvethiabob- thooj trunnion- mounted pob li qub, ntawm lwm tus.
Thib ob, raws li kev khiav dej num, pob li qub tuaj yeem muab faib ua ncaj- dhau, peb- txoj kev, plaub- txoj kev, thiab tsib- txoj kev hom- piv txwv uas suav nrog ncaj- dhau ntawmib - thooj pob li qubthiabpeb - txoj kev flanged pob li qub.
Tsis tas li ntawd, lawv tuaj yeem raug cais raws li lub cev lub cev sib dhos, suav nrog ib qho - thooj, ob- thooj, peb - thooj, thiab sab saum toj - qauv nkag; piv txwv ntawm no suav nrogob-daim fluorine- pob li qubthiabsab saum toj - nkag pob li qub. Thaum kawg, raws li txoj kab uas hla ntawm lub valve lub cev ntws channel, lawv tuaj yeem muab faib ua tag nrho - bore (tag nrho - chaw nres nkoj) thiab txo - bore (txo- chaw nres nkoj) hom- xws li puv - bore flanged pob li qub thiab txo - bore pob li qub.
Qhov kawg Ball Valve Guide: Txhua Hom, Txheem & Daim Ntawv Loj Hauv Ib Qhov Chaw
Pob Valve Classification Table
| Qeb | Hom Hom | Nta & Daim Ntawv Thov |
| Kev them nyiaj yug pob | Floating Ball | Yooj yim tsim; lub pob yog nias tawm tsam lub rooj los ntawm kab siab. Zoo tagnrho rau me me - mus rau - nruab nrab bores thiab tsis tshua muaj siab. |
| Trunnion Mounted | Lub pob yog txhawb nqa los ntawm bearings thiab tsis txav nrog lub siab. Qhov tseem ceeb rau bores loj thiab siab siab (API 6D UAS). | |
| Lub cev sib dhos | Sab nkag | Muaj nyob rau hauv 2-daim los yog 3-daim qauv tsim; yooj yim los tsim thiab feem ntau dav siv. |
| Sab saum toj nkag | Tso caiHauv - kev kho kab; Cov khoom siv sab hauv tuaj yeem hloov pauv yam tsis tau tshem lub valve ntawm cov kav dej. | |
| Txhua yam -welded | Tsis muaj bolted lub cev pob qij txha; muaj qhov siab tshaj plaws tiv thaiv dej. Feem ntau siv nyob rau hauv faus gas pipelines. | |
| Kev tsim lub cev | 1-khob | Txo bore tsim; compact thiab tus nqi tshaj -zoo. |
| 2-khob | Tag nrho bore tsim; tsawg dua cov ntsiab lus txuas nrog txhim khu kev qha sealing. | |
| 3-khob | Qhov chaw nruab nrab tuaj yeem hloov pauv mus rau kev tu thiab tu. | |
| Hom Pob | Full Bore (FB) | bore match yeeb nkab ID; tsawg txaus tsis kam thiab yogPiggable. |
| Reduced Bore (RB) | bore yog me dua cov yeeb nkab ID; compact, qis torque, thiab tus nqi qis. | |
| Tshwj xeeb muaj nuj nqi | V-Port Pob Valve | Features V-zoo li tus taw tes rau kev hloov pauv / tswj tau meej. |
| Cryogenic | Nruab nrog lub kaus mom txuas ntxiv rau ultra- kev pabcuam kub qis (piv txwv li, LNG ntawm -196℃). | |
| Hlau zaum | Pob thiab cov rooj zaum yog tawv-ntsej muag (xws li Stellite) rau qhov kub thiab txias thiab cov xov xwm abrasive. |
Pob Valve Lub ntsej muag - mus rau - Lub ntsej muag Dimensions (ASME B16.10)
Floating Ball Valves (Class 150 - 600) - Chav nyob: mm
| NPS (Inch) | DN (hli) | Chav Kawm 150 (LB) | Chav Kawm 300 (LB) | Chav Kawm 600 (LB) |
| 1/2" | 15 | 108 | 140 | 165 |
| 3/4" | 20 | 117 | 152 | 190 |
| 1" | 25 | 127 | 165 | 216 |
| 1-1/2" | 40 | 165 | 190 | 241 |
| 2" | 50 | 178 | 216 | 292 |
| 3" | 80 | 203 | 283 | 356 |
| 4" | 100 | 229 | 305 | 432 |
| 6" | 150 | 394 | 403 | 559 |
| 8" | 200 | 457 | 502 | 660 |
Trunnion Mounted Pob Valves (Class 150 - 900) - Chav nyob: mm
| NPS (Inch) | DN (hli) | Chav Kawm 150 (LB) | Chav Kawm 300 (LB) | Chav Kawm 600 (LB) | Chav Kawm 900 (LB) |
| 2" | 50 | 178 | 216 | 292 | 368 |
| 4" | 100 | 229 | 305 | 432 | 457 |
| 6" | 150 | 394 | 403 | 559 | 610 |
| 8" | 200 | 457 | 502 | 660 | 737 |
| 10" | 250 | 533 | 568 | 787 | 838 |
| 12" | 300 | 610 | 648 | 838 | 965 |
| 16" | 400 | 762 | 838 | 991 | 1130 |
| 20" | 500 | 914 | 991 | 1194 | 1327 |
| 24" | 600 | 1067 | 1143 | 1397 | 1543 |
Hom Pob Valve Trim Cov Khoom (Cov Khoom Siv)
| Cheebtsam | Carbon Steel Service | Stainless hlau Service | Kev Pabcuam Kub Kub |
| Lub cev | A105 / WCB | F316 / CF8M | LF2 / LCC |
| Pob | A105 + ENP | F316 / F51 (Duplex) | F316 / F51 |
| Qe | 4140 + ENP / 13Cr | 17-4PH/SS316 | XM-19 / SS316 |
| Rooj | PTFE / Devlon / Nylon | RPTFE / PEB | Kel-F (PCTFE) / PEEK |
| Cov ntsaws ruaj ruaj | Viton / NBR | Viton / PTFE | HNBR / PTFE |
[Download PDF] Pob Valve Dimension Table & Specification Sheet
GNEE Pob Valve Hoobkas
FAQ
Dab tsi yog tus qauv API rau pob li qub
API pob li qubyog cov khoom lag luam uas ua raws li American Petroleum Institute (API) cov qauv, tsim nyog rau kev tshaj tawm xws li dej, chav dej, roj av, nitric acid, thiab acetic acid, thiab lwm yam. Qhov ntsuas kub feem ntau tsis siab tshaj 200 degree. Cov khoom no yog tsim raws li cov qauv xws li API 608 thiab API 6D, thiab ua tau raws li cov qauv ntsuas hluav taws xws li API 607 thiab API 6FA. Nws yog tsuas yog siv nyob rau hauv teb xws li roj av, natural gas, tshuaj, thiab lub hwj chim.
Dab tsi yog Api 608 pob valve specifications
API 608 pob li qub yog siv nyob rau hauv cov roj av, petrochemical, thiab kev lag luam kev lag luam, feem ntau hauv ASME B31.3 txheej txheem kav dej. Npog cov yeeb nkab nominal loj (NPS) thaj tsam ntawm 1/4 txog 24 ntiv tes-txawm hais tias feem ntau muaj cov kab me me- cov li qub no muaj nyob rau hauv cov chav kawm siab 150, 300, 600, thiab 800. Lawv feem ntau muaj lub pob ntab tsim nrog kev sib khi hauv qab.