Valve yeButterfly yeEccentric High Performance Double
Iyovharafu yeshavishavi ine eccentric yepamusoro-soro— inozivikanwawo se double offset butterfly valve — chigadzirwa chemhando yepamusoro chekugadzira double offset chine tekinoroji inotungamira pasi rose yebasa rinoda maindasitiri. Chine shaft offsets mbiri dzakasiyana dzinobvisa dhisiki kubva pachigaro pakarepo painovhurwa, zvichibvisa kubatana kwechigaro nguva dzose panguva yekushanda — mukana mukuru pane concentric butterfly valves.
Kusimba kwedhisiki kunoburitswa mushure mekuvhurwa kwemadhigirii mashoma, zvichideredza kupera kwedhisiki mukati mehupenyu hwevharuvhu. Iyi double offset geometry inoderedza torque yekushanda, inoderedza kukweshana uye kupera kwechigaro, uye inoita kuti ive yakavimbika kuvharwa kunyangwe paine shanduko huru mutembiricha kana kumanikidzwa - zvichiita kuti ive sarudzo inosarudzwa munzvimbo dzemaindasitiri dzine kumanikidzwa kwakanyanya, tembiricha yakakwira, uye dzakachengeteka. Nechitupa cheAPI 607 chekuchengetedza moto uye chitupa cheATEX, mavharuvhu eNortech maviri e eccentric high performance butterfly anokodzera mamiriro ekushanda akaomarara uye ane njodzi.
Mavharuvhu ese akasimbiswa kuti aBvunzo rehupenyu hwemasekonzi chiurunekushanda kwakasimbiswa kwe zero-leakage bi-directional, zvichisangana nezvinodiwa zvepamusoro-soro zvekuvimbika kwenguva refu uye kuchengetedzeka.
Nortech ine huwandu hwakawanda hwemavharuvhu ekugadzira muviri, zvichiita kutikutumirwa nekukurumidza mumavhiki matatu kusvika mashanukune akawanda maodha akajairwa.
Dhisiki yekubvisa kaviri (double offset disc geometry)— dhisiki rinobuda kubva pachigaro mushure mekuvhurika kwemadhigirii mashoma, zvichibvisa kukweshana kwechigaro panguva yese yekufamba uye kuwedzera hupenyu hwechigaro zvakanyanya zvichienzaniswa nemagadzirirwo akaenzana.
| Dhizaini | API 609 / ASME B16.34 |
| Kuguma kwekubatanidza | Wafer / Lug / Yakaputirwa kaviri |
| Kushanda | Nemaoko / Pneumatic / Magetsi |
| Saizi yehukuru | NPS 2″–60″ (DN50–DN1500) |
| Kuyera kumanikidzwa | Kirasi yeASME 150 / 300 / 600 | PN16 / PN25 / PN40 |
| Tembiricha | −29°C kusvika 250°C |
| Muviri | Simbi yekabhoni, simbi isina ngura, simbi ye alloy, duplex SS, Alu-bronze |
| Dhisiki | Simbi isina ngura, duplex SS, Alu-bronze |
| Hunde | 17-4PH, duplex SS, Monel |
| Chigaro | PTFE / RPTFE / PPL |
| Kurongedza hunde | Graphite |
| Mabhoti nenzungu | Simbi isina ngura |
Yakagadzirirwa kushandiswa nekukurumidza kwekufambisa mhepo senge masisitimu ekuparadzanisa mhepo, vharuvhu inogona kupedzisa kutenderera kwakazara kwemhepo mukati mesekondi imwe chete, iine hupenyu hwebasa hunosvika 1,000,000.
Chigaro chePPL chakayerwa kuti chishande nguva dzose kusvika 250°C, zvichiita kuti vharuvhu ive yakakodzera masisitimu ekupisa kwakanyanya.
Dhizaini iyi ine mativi maviri akaenzana inopa chisimbiso chakavimbika chematanho matanhatu pasi pemamiriro ekumanikidzwa kwakanyanya, nekushanda kwakaratidzwa mumasisitimu ekupukuta econdensate uye mamwe mashandisirwo akafanana anorema.
Mavharuvhu ebasa reokisijeni anobviswa mafuta zvizere uye anounganidzwa pasi pemaitiro ekuchena, achifukidza matanho ese ekugadzirira zvikamu, kuunganidza, kuyedza, uye kurongedza zvichienderana nezvinodiwa zvebasa reokisijeni.
Chitupa cheAPI 607 chinodzivirira moto uye chitupa cheATEX zvinoita kuti vharuvhu ikwanise kushandiswa munzvimbo dzinoshanda dzinobvira moto, dzinoputika, uye dzine njodzi yemoto.
