Li-valve tsa heke li sebelisoa haholo bakeng sa lisebelisoa tsa ho itšeha tse nang le bophara ba DN ≥ 50mm, 'me ka linako tse ling li-valve tsa heke li boetse li sebelisetsoa ho itšeha lisebelisoa tse nang le li-diameter tse nyane.
Karolo e bulang le e koalang ea valve ea heke ke heke, 'me tataiso ea motsamao oa heke ke perpendicular ho tataiso ea mokelikeli.Valve ea heke e ka buloa ka botlalo le ho koaloa ka botlalo, 'me e ke ke ea fetoloa kapa ea ts'oaroa.Heke e na le libaka tse peli tsa ho tiisa.Likarolo tse peli tse tiisang tsa valve ea heke e sebelisoang ka ho fetesisa li etsa sebopeho sa chesele.Sekhahla sa wedge se fapana le liparamente tsa valve, hangata 50, le 2°52' ha mocheso o mahareng o se holimo.Heke ea valve ea heke ea wedge e ka etsoa ka botlalo, e bitsoang heke e thata;e ka boela ea etsoa heke e ka hlahisang palo e nyenyane ea deformation ho ntlafatsa manufacturability ea eona le ho lefella ho kheloha ha sekhahla sa ho tiisa holim'a metsi nakong ea ts'ebetso.Letlapa le bitsoa keiti ea elastic.Valve ea heke ke sesebelisoa se ka sehloohong sa taolo bakeng sa phallo kapa ho fetisa molumo oa phofo, lisebelisoa tsa lijo-thollo, lisebelisoa tsa granular le karoloana e nyane ea thepa.E sebelisoa haholo ho metallurgy, merafo, thepa ea mohaho, lijo-thollo, indasteri ea lik'hemik'hale le liindasteri tse ling ho laola phetoho ea phallo kapa ho khaola kapele.
Li-valve tsa heke li bua ka ho khetheha mefuta ea li-valve tsa heke ea tšepe e entsoeng ka tšepe, e ka aroloang ka li-valve tsa heke ea wedge, li-valve tsa heke tse bapileng, le li-valve tsa heke ea wedge ho latela tlhophiso ea sebaka sa ho tiisa.Li-valve tsa heke li ka aroloa ka: mofuta oa heke e le 'ngoe, mofuta oa liheke tse peli le mofuta oa heke ea elastic;parallel heke valve e ka aroloa ka mofuta oa heke e le 'ngoe le mofuta oa liheke tse peli.Ho ea ka boemo ba khoele ea kutu ea valve, e ka aroloa ka mefuta e 'meli: valve ea heke e ntseng e phahama le valve ea heke e sa phahamang.
Ha valve ea heke e koetsoe, sebaka sa ho tiisa se ka tiisoa feela ka khatello e bohareng, ke hore, ho itšetlehile ka khatello e mahareng ho hatella sebaka sa ho tiisa sa platelete ea heke ho ea setulong sa valve ka lehlakoreng le leng ho etsa bonnete ba ho tiisa ho tiisa bokahodimo, eleng ho tiisa ka bowena.Boholo ba li-valve tsa heke li qobelloa ho tiisa, ke hore, ha valve e koetsoe, heke e lokela ho hatelloa setulong sa valve ka matla a ka ntle, e le ho etsa bonnete ba ho tiisa ho tiisa holim'a metsi.
Heke ea belofo ea heke e tsamaea ka tsela e otlolohileng le kutu ea valve, e bitsoang valve ea heke e phahamisang (e boetse e bitsoa rising stem gate valve).Hangata ho na le khoele ea trapezoidal holim'a phahamisi, 'me ka linate ka holim'a valve le groove ea tataiso holim'a' mele oa valve, motsamao o potolohang o fetoloa hore e be motsamao o otlolohileng, ke hore, torque e sebetsang e fetotsoe. ts'ebetsong ea ts'ebetso.
Ha valve e buloa, ha bophahamo ba phahamiso ea letlapa la heke bo lekana le makhetlo a 1: 1 bophara ba valve, ho feta ha mokelikeli ha ho thijoe ka ho feletseng, empa boemo bona bo ke ke ba hlahlojoa nakong ea ts'ebetso.Tšebelisong ea sebele, tlhōrō ea kutu ea valve e sebelisoa e le letšoao, ke hore, sebaka seo sekhahla sa valve se sa tsamaeeng se nkoa e le sebaka sa sona se bulehileng ka ho feletseng.E le hore u nahane ka ts'ebetso ea ho koala ka lebaka la liphetoho tsa mocheso, hangata e bulehile ho ea holimo, ebe o khutlela morao 1/2-1, e le sebaka sa valve se bulehileng ka ho feletseng.Ka hona, sebaka se bulehileng ka ho feletseng sa valve se khethoa ke boemo ba heke (ke hore, stroke).
Li-valve tse ling tsa heke, stem nut e behiloe holim'a poleiti ea heke, 'me ho potoloha ha lebili la letsoho ho khanna kutu ea valve ho potoloha,' me poleiti ea heke ea phahamisoa.Mofuta ona oa valve o bitsoa valve ea rotary stem gate kapa valve e lefifi ea heke.
| Karolo ea Rising Stem Soft Sealing Valve | ||
| Che. | Lebitso | Lintho tse bonahalang |
| 1 | 'Mele oa Valve | Tšepe ea Ductile |
| 2 | Jacket ea Cavity | EPDM |
| 3 | Cavity Cap | EPDM |
| 4 | Bonnet | Tšepe ea Ductile |
| 5 | Hexagon Socket Bolt | Zinc Plating Steel kapa Stainless Steel |
| 6 | Brakete | Tšepe ea Ductile |
| 7 | Ho paka Gland | Tšepe ea Ductile |
| 8 | Lebili la letsoho | Tšepe ea Ductile |
| 9 | Ho notlela Nut | Zinc Plating Steel kapa Stainless Steel |
| 10 | Stud Bolt | Zinc Plating Steel kapa Stainless Steel |
| 11 | Washer ea polasetiki | Zinc Plating Steel kapa Stainless Steel |
| 12 | Nut | Zinc Plating Steel kapa Stainless Steel |
| 13 | Motlakase oa lipoleiti | Zinc Plating Steel kapa Stainless Steel |
| 14 | Lesale la ho Tiisa | EPDM |
| 15/16/17 | O-Ring | EPDM |
| 18 | Ho tlatsa | PTFE |
| 19/20 | Gasket ea Lubricating | Bronze kapa POM |
| 21 | Nate ea Stem | Brass kapa Bronze |
| 22 | Ho notlela Nut | Zinc Plating Steel kapa Stainless Steel |
| 23 | Sekhahla sa Valofo | Ductile Iron+EPDM |
| 24 | Motsoako | 304 Stainless Steel, Alloy Steel 1Cr17Ni2 kapa Cr13 |
| Lebelo la Brithani la Stardard Rising Stem Soft Ho Tial Gate | |||||||||
| Tlhaloso | Khatello | Boholo (mm) | |||||||
| DN | intshi | 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 | ||||
