China Double Eccentric Butterfly Valve rabha rakagara fekitari nevagadziri

Valve yeButterfly yeEccentric Double yakagara

Vharuvhu yeButterfly ine Double Eccentric yakagara Mufananidzo wakaratidzwa

Tsananguro pfupi:

Vharuvhu yeButterfly Yakasiyana-siyana yeWaterworks

Vharuvhu yeNortech ine mativi maviri e eccentric butterfly yekushandiswa kwemvura inoita kuti pave nekuvharika kwakavimbika, kusingapfuure torque pamapaipi makuru. Iyo double offset disc geometry inobvisa kusangana kwechigaro nguva dzose panguva yekushanda, zvichiwedzera hupenyu hwebasa uye zvinoderedza torque yekushanda zvichienzaniswa nemagadzirirwo akabatana. Inowanikwa muDN350–DN2000 (14″–80″), mavharuvhu aya akagadzirwa kuti ashandiswe mukupa mvura yemumaguta, nzvimbo dzekuchenesa mvura, uye masisitimu makuru emvura mumaindasitiri.

Ductile iron body nedhisiki zvine EPDM kana NBR seat zvinogonesa kushanda kwenguva refu kwekuvhara uye kugadzirisa kuri nyore. Zvinoenderana ne EN 593, API 609 uye AWWA C504. Zvichienderana ne ANSI B16.10, ISO 5752 Series 13/14, EN 558-1 Series 13/14. Flange end zvichienderana ne ASME B16.5, B16.47, AWWA C207, EN 1092-2. Zvakaedzwa zvichienderana ne API 598. Pressure rating PN10/16/25, ANSI Class 150.

Nortech ikambani inotungamira mukugadzira uye kupa mavharuvhu emabhatafura ane mativi maviri emhando yeAWWA iri kuChina, ichishandira mawaterworks nemaindasitiri pasi rese.

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Vharuvhu Yeshavishavi Yakasiyana-siyana Yakasiyana-siyana — Peji Rechigadzirwa

Chii chinonzi Double Eccentric Butterfly Valve?

Iyovharuvhu yeshavishavi ine eccentric mbiri— inozivikanwawo sevharuvhu rebhururu rine mativi maviri — ine dhisiki rakasiyana apo shaft inobviswa kubva pakati pedhisiki nepakati pepombi. Dhizaini iyi yekubvisa mativi maviri inobvumira dhisiki kuti ibve pachigaro pakarepo painovhurwa, zvichibvisa kubatana kunogara kuripo pakati pedhisiki nechigaro panguva yekushanda.

Mugumisiro wacho unoderedza zvakanyanya simba rekushanda, kusashanda zvakanaka kwechigaro, uye hupenyu hwekushanda hwakareba zvichienzaniswa nemavharuvhu emabhatafurayi akabatana. Kana akavhurwa zvizere, dhisiki harina kubatana nechigaro, zvichiita kuti chisimbiso chirambe chisina kukuvara kwezviuru zvenguva dzekushanda.

Mhete yekuvharira yakagadzirwa ne elastomer, inoiswa mudhisiki uye yakasimbiswa neplate yekufukidza, ichigadzira nzvimbo yekuvharira inoenderera mberi, isina kukanganiswa yakatenderedza denderedzwa rose. Dhizaini iyi inopa kushanda kwakavimbika kwekuvharira uye inowanzo tsanangurwa kune mawaterworks emaguta, mafekitori ekuchenesa mvura, uye masisitimu emapaipi ane dhayamita hombe.

Yakakodzera kushandiswa kwekuvhara mativi ese uye maviri. ANSI Class 150 / PN10 / PN16 / PN25.

Dhizaini Yakasiyana-siyana Kaviri— double offset disc geometry zvinoreva kuti ma disc cams anobuda pachigaro mushure mekuvhurika kwemadigiri mashoma, zvichibvisa kukweshana kwechigaro panguva yekurohwa uye kuwedzera hupenyu hwechigaro zvakanyanya zvichienzaniswa nemagadzirirwo akabatana.

Hapana kubatana kwechigaro kana chakavhurika Torque yakaderera yekushanda Kuvhara mativi maviri DN350–DN2000 Mashandiro emvura

Zvinhu zvikuru zvevharuvhu yeshavishavi ine eccentric mbiri

Hupenyu hwebasa hwakareba — dhizaini yedhisiki yakatetepa

Kusimba kwedhisiki kunoburitswa mushure mekuvhurika kwemadhigirii mashoma, zvichideredza kupera kwechisimbiso chedhisiki. Dhizaini iyi inoderedzawo kudzvanywa kwechigaro, zvichiita kuti torque yekushanda ive shoma muhupenyu hwese hwevharuvhu.

Magadzirirwo ezvigaro zvemapatya aripo

Dhizaini yechigaro chakabatana ine chigaro chesimbi chakagadzirwa nesimbi chakaputirwa ne epoxy chakabatanidzwa mumuviri. Dhizaini yechigaro chesimbi isina ngura inopa rin'i yechigaro inogona kutsiviwa yakavharwa neO-ring kudzivirira kudonha kwemvura pasi perin'i yechigaro.

Dhizaini yemugodhi — inogona kutsiviwa kana yamanikidzwa

Kuvhara shaft kunogona kutsiviwa zvizere kana paine kumanikidzwa, zvichiita kuti zvive nyore kugadzirisa munda pasina kuvharwa kwetambo. Zvisimbiso zveEPDM zvinovimbisa kusimba kwemukati; zvisimbiso zveNBR zvinodzivirira kubva pakusviba kwekunze uye kupinda kwemvura.

Chisimbiso chedhisiki chakagadzirirwa kushanda zvakanaka

Geometry yechisimbiso chedhisiki inoita kuti chigadzike zvakanaka uye chishande zvakanaka. Rabha yemhando yepamusoro inobvumira kuderedzwa kwehuwandu hwechisimbiso, zvichiita kuti torque dzivhare zvishoma. Kuvharwa kweEPDM kwakatenderwa neACS neWRAS kuti zvishandiswe mumvura inonwiwa.

Kuvhara kwemativi maviri uye kwemativi ese kunowanikwa kana ukakumbira

Chisimbiso chinotsiviwa padhisiki chine nzvimbo inogadziriswa inoenderera mberi

Dhizaini yekubvisa kaviri — kusakara kwechigaro kwakaderera uye torque yakaderera

Mhete yekuvhara inowedzerwazve kuti ishande kwenguva yakareba

Muviri nedhisiki zvakapendwa ne epoxy kudzivirira ngura

ISO 5211 flange yepamusoro yekushanda nemaoko, magetsi uye pneumatic

Kusabuda kwemvura kumativi ese ari maviri kumusoro nepasi

Vharuvhu yeshavi ... eccentric ine mativi maviri

Chirongwa chedhisiki rekubvisa kaviri

Geometry yemugodhi inogadziriswa

Vharuvhu yeshavishavi yemhando yepamusoro ine flange mbiri

Yakaputirwa kaviri — AWWA

DN350–DN2000

Magadzirirwo ehunyanzvi

Ruzivo rwemitemo & dhizaini

Dhizaini & kugadzirwa	EN 593 / API 609
Kuguma kwekubatanidza	Yakaputirwa kaviri
Kushanda	Nemaoko / Pneumatic / Magetsi
Saizi yehukuru	NPS 14"–120" (DN350–DN3000)
Kuyera kumanikidzwa	PN10 / PN16 / PN25 \| Kirasi yeANSI 150/275/500
Takatarisana	EN 558-1 Series 13 / Series 14
Mugumo weFlange	EN 1092-2 / ASME B16.5 / AWWA C207 / ASME B16.47
Kuongorora	EN / AWWA C504 / C519 / NSF 61/372

Zvinhu zvikuru zvekushandisa

Muviri	ASTM A536 65-45-12 / GGG-40 / GGG40.3 / SS 1.4408
Dhisiki / Ndiro	DI+Ni / CF8 / CF8M / C954 / C958 / GGG-40 / SS 1.4408
Mugodhi / Hunde	SS431 / SS420 / SS410 / SS304 / SS316
Chigaro / Mucheka	NBR / EPDM / Viton / PTFE / PFA
Mapini eTaper	SS416 / SS316
Kugadzira matanda	Ndarira / PTFE
Mhete yeO	NBR / EPDM / Viton / PTFE
Kiyi	Simbi