Ana amfani da bawul ɗin ƙofar kofa don yankan na'urori masu diamita na DN ≥ 50mm, kuma a wasu lokuta ana amfani da bawul ɗin ƙofar don yankan na'urori masu ƙananan diamita.
Bangaren buɗewa da rufewa na bawul ɗin ƙofar shine ƙofar, kuma yanayin motsi na ƙofar yana daidai da hanyar ruwan.Ƙofar bawul ɗin kawai za a iya buɗe shi cikakke kuma a rufe gabaɗaya, kuma ba za a iya daidaitawa ko matsewa ba.Ƙofar tana da saman rufewa biyu.Fuskokin rufewa guda biyu na bawul ɗin ƙofar ƙirar ƙirar da aka fi amfani da su suna samar da sifar tsinke.Matsakaicin kusurwa ya bambanta tare da sigogi na bawul, yawanci 50, da 2°52' lokacin da matsakaicin zafin jiki ba shi da girma.Ƙofar bawul ɗin ƙofa mai wutsiya za a iya yin shi gaba ɗaya, wanda ake kira gate mai ƙarfi;Hakanan za'a iya sanya shi a matsayin ƙofar da za ta iya samar da ƙananan ƙwayar cuta don inganta aikinta da kuma rama sabani na kusurwar saman rufewa yayin sarrafawa.Ana kiran farantin karfen gate na roba.Bawul ɗin Ƙofa shine babban kayan sarrafawa don gudana ko isar da ƙarar foda, kayan hatsi, kayan granular da ƙananan kayan.Ana amfani da shi sosai a cikin ƙarfe, ma'adinai, kayan gini, hatsi, masana'antar sinadarai da sauran masana'antu don sarrafa canjin kwarara ko yanke da sauri.
Ƙofar bawul na musamman suna nufin nau'ikan bawul ɗin ƙofar ƙarfe na simintin gyare-gyare, waɗanda za a iya raba su zuwa bawul ɗin ƙofar ƙofa, bawul ɗin ƙofar layi ɗaya, da bawul ɗin ƙofa bisa ga daidaitawar filin rufewa.Ana iya raba bawul ɗin ƙofar zuwa: nau'in kofa ɗaya, nau'in kofa biyu da nau'in kofa na roba;Za'a iya raba bawul ɗin ƙofar layi ɗaya zuwa nau'in kofa ɗaya da nau'in kofa biyu.Dangane da matsayi na zaren mai tushe na bawul, ana iya raba shi zuwa nau'i biyu: tashi bawul ɗin ƙofar tushe da bawul ɗin ƙofa mara tashi.
Lokacin da aka rufe bawul ɗin ƙofar, za a iya rufe murfin rufewa kawai ta hanyar matsakaicin matsa lamba, wato, dogara ga matsakaicin matsa lamba don danna madaidaicin murfin ƙofar zuwa wurin zama na valve a gefe guda don tabbatar da hatimin hatimin. sealing surface, wanda shi ne kai-sealing.Yawancin bawul ɗin ƙofar ana tilasta hatimi, wato, lokacin da aka rufe bawul ɗin, yakamata a danna ƙofar zuwa wurin zama ta hanyar ƙarfin waje, don tabbatar da hatimin hatimin.
Ƙofar bawul ɗin ƙofar yana motsawa a madaidaiciyar layi tare da tushen bawul, wanda ake kira valve gate mai ɗagawa (wanda ake kira da hawan ƙofa mai tashi).Yawancin lokaci akwai zaren trapezoidal a kan mai ɗagawa, kuma ta hanyar goro a saman bawul da jagorar jagora a kan bawul ɗin, motsin juyawa yana canzawa zuwa motsi madaidaiciya, wato, ana canza ƙarfin aiki. cikin aikin turawa.
Lokacin da bawul ɗin ya buɗe, lokacin da tsayin tsayin farantin ƙofar ya yi daidai da 1: 1 sau diamita na bawul, an buɗe hanyar da ruwa ke ciki gaba ɗaya, amma wannan matsayi ba za a iya saka idanu yayin aiki ba.A cikin ainihin amfani, ana amfani da koli na tushen bawul ɗin azaman alama, wato, matsayin da bawul ɗin ba ya motsawa ana ɗaukar matsayinsa cikakke.Don yin la'akari da yanayin kulle-kulle saboda canje-canjen zafin jiki, yawanci buɗewa zuwa matsayi na sama, sa'an nan kuma juya baya 1 / 2-1 juya, a matsayin cikakkiyar matsayi na bawul.Sabili da haka, cikakken matsayi na buɗaɗɗen bawul yana ƙaddara ta matsayi na ƙofar (wato, bugun jini).
A wasu bututun gate, ana saita goro a kan farantin ƙofar, kuma jujjuyawar motar hannu ta motsa bawul ɗin don juyawa, kuma farantin gate ɗin ya ɗaga.Irin wannan bawul ɗin ana kiransa rotary stem gate bawul ko bawul ɗin ƙofar tushe mai duhu.
Bangaren Rising Stem Soft Seling Gate Valve | ||
A'a. | Suna | Kayan abu |
1 | Bawul Jikin | Iron Ductile |
2 | Jaket ɗin Cavity | EPDM |
3 | Cavity Cap | EPDM |
4 | Bonnet | Iron Ductile |
5 | Hexagon Socket Bolt | Zinc Plating Karfe ko Bakin Karfe |
6 | Bangaren | Iron Ductile |
7 | Shirya Gland | Iron Ductile |
8 | Dabarun Hannu | Iron Ductile |
9 | Kulle Kwaya | Zinc Plating Karfe ko Bakin Karfe |
10 | Stud Bolt | Zinc Plating Karfe ko Bakin Karfe |
11 | Filastik Wanke | Zinc Plating Karfe ko Bakin Karfe |
12 | Kwaya | Zinc Plating Karfe ko Bakin Karfe |
13 | Farantin Wanke | Zinc Plating Karfe ko Bakin Karfe |
14 | Zoben Rufewa | EPDM |
15/16/17 | O-Ring | EPDM |
18 | Shigarwa | PTFE |
19/20 | Gasket mai shafawa | Bronze ko POM |
21 | Tushen Kwaya | Brass ko Bronze |
22 | Kulle Kwaya | Zinc Plating Karfe ko Bakin Karfe |
23 | Valve Plate | Iron Ductile+EPDM |
24 | Kara | 304 Bakin Karfe, Alloy Karfe 1Cr17Ni2 ko Cr13 |
British Stardard Rising Stem Soft Seling Gate Valve | |||||||||
Ƙayyadaddun bayanai | Matsi | Girma (mm) | |||||||
DN | inci | PN | φD | Ƙaddamar da K | L | H | H1 | H2 | φd |
50 | 2 | 10/16 | 165 | 125 | 178 | 441 | 358.5 | 420.5 | 22 |
25 | 165 | 125 | 178 | 441 | 358.5 | 420.5 | 22 | ||
40 | 165 | 125 | 441 | 358.5 | 420.5 | ||||
65 | 2.5 | 10/16 | 185 | 145 | 190 | 452 | 359.5 | 429.5 | 22 |
25 | 185 | 145 | 190 | 452 | 359.5 | 429.5 | 22 | ||
40 | 185 | 145 | 452 | 359.5 | 429.5 | ||||
80 | 3 | 10/16 | 200 | 160 | 203 | 478 | 378 | 462 | 22 |
25 | 200 | 160 | 203 | 478 | 378 | 462 | 22 | ||
40 | 200 | 160 | 478 | 378 | 462 | ||||
100 | 4 | 10/16 | 220 | 180 | 229 | 559.5 | 449.5 | 553 | 24 |
25 | 235 | 190 | 229 | 567 | 449.5 | 553 | 24 | ||
40 | 235 | 190 | 567 | 449.5 | 553 | ||||
125 | 5 | 10/16 | 250 | 210 | 254 | 674.5 | 549.5 | 677 | 28 |
25 | 270 | 220 | 254 | 684.5 | 549.5 | 677 | 28 | ||
40 | 270 | 220 | 684.5 | 549.5 | 677 | ||||
150 | 6 | 10/16 | 285 | 240 | 267 | 734 | 591.5 | 747 | 28 |
25 | 300 | 250 | 267 | 741.5 | 591.5 | 747 | 28 | ||
40 | 300 | 250 | 741.5 | 591.5 | 747 | ||||
200 | 8 | 10 | 360 | 310 | 292 | 915.5 | 735.5 | 938 | 32 |
16 | 340 | 295 | 923 | 735.5 | 938 | ||||
25 | 360 | 310 | 292 | 915.5 | 735.5 | 938 | 32 | ||
40 | 375 | 320 | 923 | 735.5 | 938 | ||||
250 | 10 | 10 | 400 | 350 | 330 | 1100.5 | 900.5 | 1161 | 36 |
16 | 400 | 355 | 1100.5 | 900.5 | 1161 | ||||
25 | 425 | 370 | 330 | 1113 | 900.5 | 1161 | 36 | ||
40 | 450 | 385 | 1125.5 | 900.5 | 1161 | ||||
300 | 12 | 10 | 455 | 400 | 356 | 1273 | 1045.5 | 1353 | 40 |
16 | 455 | 410 | 1273 | 1045.5 | 1353 | ||||
25 | 485 | 430 | 356 | 1288 | 1045.5 | 1353 | 40 | ||
40 | 515 | 450 | 1303 | 1045.5 | 1353 | ||||
350 | 14 | 10 | 505 | 460 | 381 | 1484.5 | 1232 | 1585 | 40 |
16 | 520 | 470 | 1492 | 1232 | 1585 | ||||
400 | 16 | 10 | 565 | 515 | 406 | 1684.5 | 1402 | 1805 | 44 |
16 | 580 | 525 | 1692 | 1402 | 1805 | ||||
450 | 18 | 10 | 615 | 565 | 432 | 1868.5 | 1561 | 2065 | 50 |
16 | 640 | 585 | 1881 | 1561 | 2065 | ||||
500 | 20 | 10 | 670 | 620 | 457 | 2068 | 1733 | 2238 | 50 |
16 | 715 | 650 | 2090.5 | 1733 | 2238 | ||||
600 | 24 | 10 | 780 | 725 | 508 | 2390 | 2000 | 2605 | 50 |
16 | 840 | 770 | 2420 | 2000 | 2605 | ||||