Gedhi valve inoshandiswa zvakanyanya pakucheka michina ine dhayamita yeDN ≥ 50mm, uye dzimwe nguva mavharuvhu emagedhi anoshandiswawo pakucheka michina ine madhayamita madiki.
Chikamu chekuvhura nekuvhara chevhavha yegedhi ndiro gedhi, uye mafambiro ekufamba kwegedhi ari perpendicular kune kutungamirirwa kwemvura.Ivhavha yegedhi inogona chete kuvhurwa zvakakwana uye yakavharwa zvakakwana, uye haigoni kugadziriswa kana kuputika.Gedhi rine nzvimbo mbiri dzekuisa chisimbiso.Nzvimbo mbiri dzekuvharisa dzeinonyanya kushandiswa patani yevharuvhu yegedhi inoumba chimiro cheweji.Wedge angle inosiyana nemaparameter evharuvhu, kazhinji 50, uye 2°52' kana tembiricha yepakati isiri yakakwirira.Gedhi revhavha yegedhi rejeri rinogona kuitwa rose, iro rinonzi gedhi rakaoma;inogonawo kugadzirwa gedhi rinogona kuburitsa diki deformation yekuvandudza manufacturability uye kubhadhara kutsauka kweiyo chisimbiso chepamusoro angle panguva yekugadzirisa.Ndiro inonzi elastic gedhi.Gedhi vharafu ndiyo huru yekudzora midziyo yekuyerera kana kuendesa vhoriyamu yehupfu, zviyo, zvinhu zvegranular uye chidimbu chidiki chechinhu.Inoshandiswa zvakanyanya musimbi, migodhi, zvekuvaka, zviyo, indasitiri yemakemikari uye mamwe maindasitiri kudzora kuyerera kwekuchinja kana kucheka nekukurumidza.
Mavharuvhu egedhi anonyanya kureva mhando dzesimbi dzakakandwa mavharuvhu egedhi, ayo anogona kukamurwa kuita wedge gedhi mavharuvhu, akafanana gedhi mavharuvhu, uye wedge gedhi mavharuvhu zvinoenderana nekumisikidzwa kwenzvimbo yekuisa chisimbiso.Gedhi vharafu inogona kukamurwa kuva: imwe gedhi mhando, kaviri gedhi mhando uye elastic gedhi mhando;parallel gedhi vharafu inogona kukamurwa kuva imwe gedhi mhando uye mbiri gedhi mhando.Zvinoenderana nenzvimbo yeshinda yehunde yevharuvhu, inogona kupatsanurwa mumhando mbiri: inokwira stem gedhi vharafu uye isiri-kusimuka stem gedhi vharafu.
Kana gedhi revhavha rakavharwa, nzvimbo yekuisa chisimbiso inogona kuiswa chisimbiso chete nekumanikidza kwepakati, ndiko kuti, kuvimba nekumanikidza kwepakati kudzvanya nzvimbo yekuisa chisimbiso cheplate regedhi kune chigaro chevhavha kune rumwe rutivi kuti ive nechokwadi chekuisirwa chisimbiso. yekuisa chisimbiso pamusoro, iko kuzvisimbisa.Yakawanda yevhavha yegedhi inomanikidzirwa chisimbiso, ndiko kuti, kana vheji yakavharwa, gedhi rinofanira kumanikidzirwa kuchigaro chevhavha nechisimba chekunze, kuitira kuti kuve nechokwadi chekuvhara chisimbiso chepamusoro.
Gedhi revharuvhu regedhi rinofamba mumutsara wakatwasuka nedzinde revharuvhu, iro rinonzi rinosimudza stem vharafu yegedhi (inonziwo rising stem gedhi vharafu).Kazhinji pane trapezoidal tambo pane inosimudza, uye kuburikidza nenati iri pamusoro pevhavha uye gwara regirovha pamutumbi wevharuvhu, kufamba kunotenderera kunoshandurwa kuita mutsara wakatwasuka, kureva kuti, torque yekushandisa inoshandurwa. mukuita oparesheni.
Kana iyo valve yakavhurwa, kana kukwidziridzwa kweplate yegedhi kwakaenzana ne1: 1 nguva yevhavha yevhavha, nzira yemvura yakavharwa zvachose, asi nzvimbo iyi haigoni kuongororwa panguva yekushanda.Mukushandiswa chaiko, nhongonya yehunde yevharuvhu inoshandiswa sechiratidzo, ndiko kuti, nzvimbo iyo dzinde yevharuvhu isingafambi inotorwa senzvimbo yayo yakazaruka zvizere.Kuti utarise chiitiko chekuvhara nekuda kwekushanduka kwekushisa, kazhinji kuvhurika kune chinzvimbo chepamusoro, uye wozodzokera kumashure 1/2-1 kutendeuka, seyakavhurika yakazara valve nzvimbo.Nokudaro, nzvimbo yakazaruka yakakwana yevhavha inotarirwa nechinzvimbo chegedhi (kureva, sitiroko).
Mune mamwe mavharuvhu egedhi, stem nut inoiswa paplate yegedhi, uye kutenderera kwevhiri reruoko kunofambisa tsinde yevharuvhu kutenderera, uye ndiro yegedhi inosimudzwa.Rudzi urwu rwevharuvhu inodaidzwa kuti rotary stem gedhi vharafu kana vharafu regedhi rakasviba.
| Chikamu cheRising Stem Yakapfava Kuvhara Gedhi Valve | ||
| Aihwa. | Zita | Material |
| 1 | Valve Body | Ductile Iron |
| 2 | Cavity Jacket | EPDM |
| 3 | Cavity Cap | EPDM |
| 4 | Bonnet | Ductile Iron |
| 5 | Hexagon Socket Bolt | Zinc Plating Simbi kana Stainless Simbi |
| 6 | Bracket | Ductile Iron |
| 7 | Packing Gland | Ductile Iron |
| 8 | Hand Wheel | Ductile Iron |
| 9 | Kukiya Nut | Zinc Plating Simbi kana Stainless Simbi |
| 10 | Stud Bolt | Zinc Plating Simbi kana Stainless Simbi |
| 11 | Plastic Washer | Zinc Plating Simbi kana Stainless Simbi |
| 12 | Nut | Zinc Plating Simbi kana Stainless Simbi |
| 13 | Plate Washer | Zinc Plating Simbi kana Stainless Simbi |
| 14 | Chisimbiso Mhete | EPDM |
| 15/16/17 | O-Ring | EPDM |
| 18 | Kunyora | PTFE |
| 19/20 | Lubricating Gasket | Bronze kana POM |
| 21 | Stem Nut | Brass kana Bronze |
| 22 | Kukiya Nut | Zinc Plating Simbi kana Stainless Simbi |
| 23 | Valve Plate | Ductile Iron+EPDM |
| 24 | Stem | 304 Stainless Simbi, Alloy Simbi 1Cr17Ni2 kana Cr13 |
| British Stardard Rising Stem Yakapfava Kuvhara Gedhi Valve | |||||||||
| Tsanangudzo | Pressure | Dimension (mm) | |||||||
| DN | inch | PN | φD | φK | 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 | ||||
