Falf Diaffragm wedi'i leinio gan Teflon
Falf Globe Cysylltiad Flange
① Prif ddeunydd: haearn bwrw gyda leinin PTFE, dur carbon gyda leinin PTFE
② Diamedr enwol: DN40 i DN400
③ Ystod pwysau: 0.6MPa ~ 4.0MPa
④ Tymheredd gweithredu: -29 gradd ~+150 gradd
⑤ Dulliau gyrru: llawlyfr, offer llyngyr, trydan, niwmatig, hydrolig
⑥ Cwmpas y cais: Yn addas ar gyfer trin dŵr gwastraff, prosesu bwyd, cynhyrchu pŵer, fferyllol, meteleg, a diwydiannau tecstilau ysgafn. Fe'i defnyddir ar gyfer torri neu reoleiddio a gwthio ar y gweill o hylif cyrydol cryf megis ynni.
Safon Gweithredu
| Dylunio a Gweithgynhyrchu | GB 12239 |
| Hyd strwythur | JB 1688 |
| Dimensiwn fflans | JB78 (neu fel sy’n ofynnol gan y contract) |
| Prawf pwysau | GB/T 13927 |
| Marcio | GB 12220 |
| Cyflenwi deunydd | GB/T12252 |
Math Sylfaenol (Llinell Llawn)
| Gweithrediad â Llaw | G41F3 (Tynnu-math) | Niwmatig | G641F3 (cilyddol) |
| G41F46 (Tynnu-math) | G641F4 6 (Yn dychwelyd) | ||
| G45F3 (math DC) | G6B41F3 (ar gau fel arfer) | ||
| G45F46 (math DC) | G6B41F (ar gau fel arfer) | ||
| G9B41F3 (Math o brawf ffrwydrad) | G941F 3 (Safonol) | ||
| Wedi'i yrru-modur | G9B41F46 (Math o brawf ffrwydrad) | Wedi'i yrru-modur | G941F46 (Safonol) |
Dylunio, safonau prawf, ac amodau gweithredu
Gorchymyn Rhif. |
Enw rhan |
Haearn mochyn llwyd | Dur carbon | Dur di-staen | Carbon di-staen ychwanegol{0}isel | ||
| Dur | |||||||
| Z | C | P | R | PL | RL | ||
| Corff falf, gorchudd falf, disg falf | HT250 | WCB | CF8 | CF8M | CF3 | CF3M | |
| Coesyn falf | 35 | 1Cr13 | 1Cr18Ni9 | 1Cr18Ni12MO2Ti | 00Cr18Ni10 | 00Cr17Ni14Mo2 | |
| leinin | FEP (F46), PCTFE (F3), PFA (polytetrafluoroethylene hydawdd), PO (polyolefin) | ||||||
| Diaffram | FEP (F46) / CR (Rwber Chloroprene) / PFA (Polytetrafluoroethylene Hydawdd) / FPDM (Ethylene Propylene Diene Monomer) | ||||||
| Cneuen coesyn falf | ZCuAl10Fe3 ZCuAl10Fe3 | ||||||
| Bollt | 35 | 34 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | |
| Cnau | 45 | 45 | OCr18Ni9 | OCr18Ni9 | OCr18Ni9 | OCr18Ni9 | |
| Olwyn law | HT200 | HT200 | WCC | WCC | WCC | WCC | |
Mesuriadau maint allweddol
| PN0.6/1.0MPa | ||||||||||||
| Diamedr enwol y tu mewn | Gwerth safonol | Gwerth cyfeirio | ||||||||||
| DN(mm) | NPS(modfedd) | L | D | D, | D2 | f | b | Z-φd | GWNEUD | H1 | H2 | W(kg) |
| 15 | 1/2 | 125 | 95 | 65 | 45 | 2 | 14 | 4-φ14 | 100 | 105 | 110 | 3.5 |
| 20 | 3/4 | 135 | 105 | 75 | 55 | 2 | 16 | 4-φ14 | 100 | 115 | 125 | 4 |
| 25 | 1 | 145 | 115 | 85 | 65 | 2 | 16 | 4-φ14 | 120 | 120 | 135 | 5.5 |
| 32 | 1 1/4 | 160 | 135 | 100 | 78 | 2 | 18 | 4-φ18 | 120 | 125 | 150 | 8 |
| 40 | 1 1/2 | 180 | 145 | 110 | 85 | 3 | 18 | 4-φ18 | 140 | 135 | 175 | 11 |
| 50 | 2 | 210 | 160 | 125 | 100 | 3 | 20 | 4-Φ18 | 140 | 155 | 195 | 14 |
| 65 | 2 1/2 | 250 | 180 | 145 | 120 | 3 | 20 | 4-φ18 | 200 | 170 | 200 | 23 |
| 80 | 3 | 300 | 195 | 160 | 135 | 3 | 22 | 4/8-φ18 | 200 | 200 | 255 | 29 |
| 100 | 4 | 350 | 215 | 180 | 155 | 3 | 22 | 8-φ18 | 280 | 270 | 325 | 46 |
| 125 | 5 | 400 | 245 | 210 | 185 | 3 | 24 | 8-φ18 | 320 | 335 | 405 | 70 |
| 150 | 6 | 460 | 280 | 240 | 210 | 3 | 24 | 8-φ23 | 320 | 370 | 450 | 95 |
| 200 | 8 | 570 | 335 | 295 | 265 | 3 | 26 | 8-φ23 | 400 | 480 | 600 | 170 |
| 250 | 10 | 680 | 390 | 350 | 320 | 3 | 28 | 12-φ23 | 500 | 545 | 620 | 270 |
| 300 | 12 | 790 | 440 | 400 | 368 | 4 | 28 | 12-φ23 | 500 | 585 | 680 | 320 |
Oni nodir yn wahanol yn y contract, rhaid cynhyrchu maint fflans y falf diaffram yn PN1.0MPa pan fo'r pwysedd yn PN0.6MPa.
Ar gyfer dimensiynau fflans PN1.0MPa a DN80, mae'r cyfrif twll bollt yn Z=4 o dan safon JB78, tra bod Z=8 yn berthnasol i safonau eraill.
| PN1.6MPa | ||||||||||||
| Diamedr enwol y tu mewn | Gwerth safonol | Gwerth cyfeirio | ||||||||||
| DN(mm) | NPS(modfedd) | L | D | D1 | D2 | f | b | Z-φd | GWNEUD | H1 | H2 | W(kg) |
| 15 | 1/2 | 125 | 95 | 65 | 45 | 2 | 14 | 4-φ14 | 120 | 110 | 115 | 4 |
| 20 | 3/4 | 135 | 105 | 75 | 55 | 2 | 16 | 4-φ14 | 120 | 120 | 130 | 5 |
| 25 | 1 | 145 | 115 | 85 | 65 | 2 | 16 | 4-φ14 | 140 | 125 | 140 | 6 |
| 32 | 1 1/4 | 160 | 135 | 100 | 78 | 2 | 18 | 4-φ18 | 140 | 130 | 155 | 9 |
| 40 | 1 1/2 | 180 | 145 | 110 | 85 | 3 | 18 | 4-φ18 | 160 | 140 | 180 | 12 |
| 50 | 2 | 210 | 160 | 125 | 100 | 3 | 20 | 4-φ18 | 160 | 160 | 200 | 15 |
| 65 | 2 1/2 | 250 | 180 | 145 | 120 | 3 | 20 | 4-φ18 | 200 | 175 | 205 | 24 |
| 80 | 3 | 300 | 195 | 160 | 135 | 3 | 22 | 4-φ18 | 200 | 205 | 260 | 30 |
| 100 | 4 | 350 | 215 | 180 | 155 | 3 | 24 | 8-φ18 | 280 | 275 | 330 | 48 |
| 125 | 5 | 400 | 245 | 210 | 185 | 3 | 26 | 8-φ18 | 320 | 340 | 410 | 75 |
| 150 | 6 | 460 | 280 | 240 | 210 | 3 | 28 | 8-φ23 | 320 | 375 | 460 | 105 |
| 200 | 8 | 570 | 335 | 295 | 265 | 3 | 30 | 8-φ23 | 400 | 485 | 605 | 182 |
| 250 | 10 | 680 | 405 | 355 | 320 | 3 | 32 | 12-φ25 | 500 | 550 | 625 | 295 |
| 300 | 12 | 790 | 460 | 410 | 375 | 4 | 34 | 12-φ25 | 500 | 590 | 685 | 345 |
Tagiau poblogaidd: teflon-falf diaffram wedi'i leinio, Tsieina teflon-gweithgynhyrchwyr falf diaffram wedi'i leinio, cyflenwyr, ffatri
