2 txoj kev siab siab hydraulic pob valve yog hloov valve. Lub pob valve ob-txoj kev tswj cov dej ntws los yog gaseous media los ntawm kev tig lub pob, qia thiab orifice. Lub pob valve tseem yog lub quarter-tig valve uas tuaj yeem siv tau qhov twg yuav tsum tau ua haujlwm ceev thiab nquag. Cov pob qub qub muaj cov yam ntxwv tsis zoo ntawm lub qhov rooj vim tias lub rooj zaum raug corrodes sai nyob rau hauv ib feem qhib los yog kaw txoj hauj lwm.
1. Dab tsi yog qhov zoo ntawm ob txoj kev pob valve?
Lawv muab kev ruaj ntseg sealing peev xwm. Lub pob yog polished heev los muab lub kaw ntom nti, txo qhov muaj peev xwm ntawm kev xau txawm tias lub kaw lus tsis siv rau lub sijhawm ntev. Lawv yog tsim los ntawm cov khoom siv ruaj khov thiab siv tau ntev xws li carbon steel lossis stainless hlau. Stainless hlau 2- txoj kev pob li qub yog qhov ruaj khov thiab tsim nyog rau qhov chaw hnyav nrog kub thiab tshuaj lom neeg. Lawv kaw nrawm dua vim lub quarter-tig li qub. Lawv hu ua lub quarter-tig li qub vim tias tus kov tsuas yog yuav tsum tau tig lub quarter-tig (90 degree) kom tso cai lossis thaiv cov xov xwm ntws, uas yog qhov tseem ceeb heev thaum muaj xwm txheej ceev. Txij li thaum txoj haujlwm ntawm tus kov tuaj yeem pom pom pom, nws yooj yim rau pom seb lub valve qhib lossis kaw.
2. Thaum twg yuav tsum siv lub 2- txoj kev pob valve?
Cov npe hauv qab no tuaj yeem siv los saib seb puas yog 2- txoj kev pob valve haum rau kev siv. Ntau tshaj 2 qhov chaw nres nkoj xav tau: Pob li qub tuaj yeem muaj 2 txog 4 qhov chaw nres nkoj (2- txoj kev, 3- txoj kev lossis 4- txoj kev pob li qub). Lub peev xwm qis dua: Ob txoj kev pob li qub feem ntau me dua hauv txoj kab uas hla thiab muaj peev xwm ntws qis dua. Kev qhib lossis kaw nrawm dua: Tsuas yog peb lub hlis twg tig (90 degree tig) yuav tsum tso cai lossis thaiv qhov ntws ntawm cov xov xwm. Tight sealing thiab tag nrho kaw yog yuav tsum tau: 2- txoj kev pob li qub muab kev ruaj ntseg sealing peev xwm. Rau cov ntawv thov tsis tshua muaj siab: Qhov no yog los tiv thaiv hydraulic shock (dej rauj). Rau cov kev pab cuam uas tsis yog-abrasive: Pob li qub feem ntau yog muag muag, uas ua rau lawv tsis haum rau kev pabcuam abrasive. Cov ntsaws ruaj ruaj yuav raug puas los ntawm cov khoom siv los yog ua rau hauv lub cev kab noj hniav.
3. Dab tsi yog cov khoom vaj tse sib txawv rau 2- txoj kev pob valve?
Muaj 3 hom qauv tsim - 1 daim, 2 daim lossis 3 daim vaj tsev - uas cuam tshuam li cas lub valve tau sib sau thiab khaws cia. Ib-thooj li qub tsis tuaj yeem disassembled rau kev saib xyuas. Qhov no yog qhov pheej yig tshaj variant thiab feem ntau yog siv rau cov ntawv thov tsawg dua. Ob-thooj valve yog tshem tau rau kev saib xyuas thiab tshuaj xyuas. Lub valve yuav tsum tau muab tshem tawm tag nrho los ntawm cov yeeb nkab kom cais ob yam khoom. Peb-daim li qub yog qhov sib txawv kim tshaj plaws vim tias lub valve tuaj yeem muab kev pabcuam yam tsis tas yuav tshem tawm tag nrho lub valve ntawm cov yeeb nkab.
4. Dab tsi yog hom pob sib txawv?
Nyob ntawm seb lub pob tau txais kev txhawb nqa li cas, muaj lub pob ntab tsim los yog lub pob trunnion tsim. Nyob rau hauv lub floating pob tsim, lub pob yog tsau ntawm lub rooj zaum. Nws yog siv nyob rau hauv chav kawm 150 thiab Class 300 me me bore li qub (txog 6 "). pob tsim. Chav kawm 600 thiab siab dua li qub feem ntau yog trunnion mounted tsim nyob rau hauv qhov ntau thiab tsawg 1 1/2" thiab siab dua.
5. Yuav ua li cas siv ob lub pob valve kom zoo thiab nyab xeeb?
2 txoj kev siab siab hydraulic pob valve yog qhov zoo tshaj plaws rau kev siv qis qis los tiv thaiv hydraulic shock (dej rauj). 2- txoj kev pob valve tuaj yeem kaw sai dua vim yog lub quarter-tig valve. Kev kaw tam sim ntawd ntawm qhov nruab nrab tuaj yeem ua rau muaj kev kub ntxhov, ua suab nrov zoo ib yam li cov yeeb nkab raug ntaus nrog rauj (dej rauj). Lub zog dej rauj no tuaj yeem ua rau lub cev tawg thiab ua rau cov dej xau. Txhawm rau txo qhov cuam tshuam ntawm dej rauj, ntau yam khoom siv kev nyab xeeb xws li lub tank nthuav dav, accumulators thiab tso tawm li qub tuaj yeem ntsia tau. Yog hais tias lub valve yog siv nyob rau hauv high-pressure gas kev pab, siv lub explosive nyem o-ring. Thaum siv cov elastomer zoo tib yam O-rings, cov roj yuav nqus tau rau hauv cov qauv molecular. Yog tias lub valve yog depressurized dheev, cov roj yuav nthuav dav sai thiab ua rau O-ring puas. Txhawm rau tshem tawm qhov ua tau no, tshwj xeeb o-rings lossis di ncauj seals haum rau cov kev pabcuam zoo li no tuaj yeem siv. Qhov twg yuav tsum tau tsim hluav taws xob tsim, lub valve yuav raug sau tias "qhov hluav taws kub" raws li ib qho ntawm cov kev qhia hauv qab no: ISO 10497, BS 6755-2, API 607 lossis API 6FA. Ob-txoj kev pob li qub tuaj yeem ua tsis tiav. Lub valve tsis kaw tag nrho vim cov ntsaws ruaj ruaj puas, lossis lub valve tsis tuaj yeem txav mus los vim cov khib nyiab txhaws lub valve. Nws yog ib qho tseem ceeb uas yuav tsum tau xyuas ntau zaus kom ntseeg tau tias cov ntsaws ruaj ruaj tsis puas thiab tshem tawm cov khib nyiab uas tau nkag mus rau hauv lub valve.
Cheebtsam
| Tsis muaj. | Ib feem | Khoom siv |
| 1 | Lub cev | Cam khwb cia hlau / Ductile Iron |
| 2 | Gasket | SIB 304 |
| 3 | Bonnet | Cam khwb cia hlau / Ductile Iron |
| 4 | Plug | Cov pa roj carbon steel |
| 5 | Screen | SIB 304 |
| 6 | Bolt | Cov pa roj carbon steel |
| 7 | Lub tshuab ntxhua khaub ncaws | SIB 304 |
Qhov ntev
| DN | L | D | D1 | D2 | b | f | n-d | H |
| 50 | 170 | 160 | 125 | 100 | 19 | 3 | 4-18 | 135 |
| 65 | 195 | 180 | 145 | 120 | 19 | 3 | 4-18 | 160 |
| 80 | 240 | 195 | 160 | 135 | 19 | 3 | 8-18 | 199 |
| 100 | 270 | 215 | 180 | 155 | 19 | 3 | 8-18 | 245 |
| 125 | 290 | 245 | 210 | 185 | 21 | 3 | 8-18 | 292 |
| 150 | 345 | 280 | 240 | 210 | 21 | 3 | 8-23 | 358 |
| 200 | 460 | 335 | 295 | 265 | 21 | 3 | 12-23 | 375 |
| 250 | 730 | 405 | 355 | 310 | 30 | 3 | 12-28 | 480 |
| 300 | 850 | 460 | 410 | 360 | 30 | 4 | 12-28 | 550 |
Cim npe nrov: 2 txoj kev siab siab hydraulic pob valve, Tuam Tshoj 2 txoj kev siab siab hydraulic pob valve lwm tus neeg