I-China Double Eccentric Butterfly Valve irabha ehleli kwifektri kunye nabavelisi

Ivalvu yeButterfly ephindwe kabini ehleli phantsi

Ivalvu yebhabhathane ephindwe kabini ehleliyo Umfanekiso obonisiweyo

Inkcazo emfutshane:

Ivalvu yeButterfly ephindwe kabini yeMisebenzi yamanzi

Ivalvu yebhabhathane ephindwe kabini yeNortech yezicelo zamanzi inika ukuvalwa okuthembekileyo, okune-torque ephantsi kwiipayipi ezinkulu. I-geometry yediski ephindwe kabini isusa ukudibana kwesihlalo okuqhubekayo ngexesha lokusebenza, yandisa kakhulu ubomi benkonzo kwaye inciphisa i-torque yokusebenza xa kuthelekiswa noyilo oluqinileyo. Ifumaneka kwi-DN350–DN2000 (14″–80″), ezi valve zenzelwe ukubonelela ngamanzi kamasipala, izityalo zonyango lwamanzi, kunye neenkqubo zamanzi zoshishino ezinkulu.

Umzimba wentsimbi ethambileyo kunye nediski enesihlalo se-EPDM okanye se-NBR esinokutshintshwa siqinisekisa ukusebenza kokutywina ixesha elide kunye nokugcinwa okulula kwentsimi. Ihambelana ne-EN 593, i-API 609 kunye ne-AWWA C504. Ukujongana ubuso ngobuso ngokwe-ANSI B16.10, i-ISO 5752 Series 13/14, i-EN 558-1 Series 13/14. Isiphelo seflange ngokwe-ASME B16.5, B16.47, AWWA C207, EN 1092-2. Ivavanywe kwi-API 598. Uvavanyo loxinzelelo lwe-PN10/16/25, i-ANSI Class 150.

INortech ngumvelisi kunye nomthengisi we-AWWA ophambili waseTshayina osebenzisa iivalvu zebhabhathane eziphindwe kabini, okhonza abathengi beendawo zamanzi kunye nemizi-mveliso kwihlabathi liphela.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Ivalvu yebhabhathane ephindwe kabini engaqhelekanga — Iphepha leMveliso

Yintoni iValve yeButterfly eDual Eccentric?

Iivalvu yebhabhathane engaqhelekanga kabini— ekwaziwa ngokuba yivalvu yebhabhathane ephindwe kabini — ine-geometry yediski eyahlukileyo apho ishaft isuswa khona ukusuka kumgca ophakathi wediski kunye nomgca ophakathi wepayipi. Olu yilo oluphindwe kabini luvumela idiski ukuba iphume esihlalweni kwangoko xa ivulwa, isusa unxibelelwano oluqhubekayo phakathi kwediski kunye nesihlalo ngexesha lokusebenza.

Isiphumo kukuba i-torque yokusebenza iyancipha kakhulu, ukuguguleka kwesihlalo kunciphile, kunye nobomi benkonzo obude xa kuthelekiswa neevalvu zebhabhathane ezixineneyo. Xa ivuliwe ngokupheleleyo, idiski ayidibani nesihlalo, nto leyo eqinisekisa ukuba umphezulu wokutywina uhlala ungonakalanga kumawakawaka eemijikelo zokusebenza.

Indandatho yokutywina yenziwe nge-elastomer, ifakwe kwidiski kwaye iqiniswe ngepleyiti yokugquma, yenza umphezulu wokutywina oqhubekayo, ongenakuphazamiseka ojikeleze umjikelo opheleleyo. Olu yilo lubonelela ngokusebenza okuthembekileyo kokutywina kwaye luqhele ukumiselwa kwimisebenzi yamanzi kamasipala, izityalo zonyango lwamanzi, kunye neenkqubo zemibhobho emikhulu.

Ifanelekile kwizicelo zokutywina ezibhekisa kwicala elinye kunye nezibhekisa kwicala elinye. Uvavanyo oluqhelekileyo loxinzelelo lwe-ANSI Class 150 / PN10 / PN16 / PN25.

Uyilo oluphindwe kabini oluyi-Eccentric— i-double offset disc geometry ithetha ukuba ii-disc cams zisuka kwisihlalo emva kokuvula nje iidigri ezimbalwa, nto leyo esusa ukungqubana kwesihlalo ngexesha lokubetha kwaye yandisa ubomi besihlalo xa kuthelekiswa noyilo oluqinileyo.

Akukho sihlalo sidibanayo xa sivuliwe I-torque yokusebenza ephantsi Ukutywinwa kwecala eliya kwicala elibini DN350–DN2000 Imisebenzi yamanzi

Iimpawu eziphambili zevalvu yebhabhathane ephindwe kabini engaqhelekanga

Ubomi benkonzo ende — uyilo lwediski oluthambekileyo

Uxinzelelo kwidiski luyakhululwa emva kokuvulwa kwamanqanaba ambalwa, nto leyo enciphisa ukuguguleka kwetywina lediski. Uyilo lukwanciphisa ucinezelo lwesihlalo, luqinisekisa ukuba ii-torque ezisebenzayo ziphantsi kulo lonke ixesha lokusebenza kwevalvu.

Uyilo lwezihlalo ezimbini luyafumaneka

Uyilo lwesihlalo oludibeneyo lunesihlalo sentsimbi esithambileyo esifakwe ngomatshini nesigqunywe nge-epoxy esidityaniswe emzimbeni. Uyilo lwesihlalo sentsimbi engagqwaliyo lubonelela ngeringi yesihlalo enokutshintshwa evalwe nge-O-ring ukuthintela ukuvuza phantsi kweringi yesihlalo.

Uyilo lweshafti — lunokutshintshwa xa luphantsi koxinzelelo

Ukutywinwa kweshafti kunokutshintshwa ngokupheleleyo xa kucinezelwe, nto leyo eyenza kube lula ukugcinwa kwentsimi ngaphandle kokuvalwa kwemigca. Ukutywinwa kwe-EPDM kuqinisekisa ukuqina kwangaphakathi; Ukutywinwa kwe-NBR kukhusela ukungcola kwangaphandle kunye nokungena kolwelo.

Itywina yediski yenzelwe ukusebenza okuphezulu

Ijiyometri yesitywini sediski iqinisekisa ukuqina okuchanekileyo kwendawo kunye nokusebenza okuthembekileyo. I-compound yerabha esemgangathweni ophezulu ivumela ubuninzi besitywini obuphantsi, inika amandla okuvala aphantsi. Ukutywinwa kwe-EPDM kuvunyelwe ukusetyenziswa kwamanzi okusela athambileyo kunye ne-WRAS.

Ukutywinwa okuya kwicala elinye nokuya kwicala elinye kuyafumaneka xa kuceliwe

Itywina elinokutshintshwa kwidiski elinomphezulu wokulungisa oqhubekayo

Uyilo oluphindwe kabini — ukuguguleka kwesihlalo okunciphileyo kunye ne-torque ephantsi

Indandatho yokutywina evuselelekayo ukuze isebenze ixesha elide

Umzimba kunye nediski epeyintwe nge-epoxy ukukhusela ukugqwala

I-flange ephezulu ye-ISO 5211 yokusebenza ngesandla, ngombane kunye ne-pneumatic

Akukho kuvuza kumacala omabini aphezulu nasezantsi komlambo

Isicwangciso se-offset yevalvu yebhabhathane engaqhelekanga kabini

Iskimu sediski ephindwe kabini

Ijiyometri ye-Shaft offset

Ivalvu yebhabhathane engaqhelekanga kabini i-AWWA flanged

I-Flanged kabini — AWWA

DN350–DN2000

Iinkcukacha zobugcisa

Imigangatho kunye nedatha yoyilo

Uyilo kunye nokuveliswa	I-EN 593 / API 609
Uqhagamshelo lokuphela	I-flanged ephindwe kabini
Umsebenzi	Isandla / I-Pneumatic / Umbane
Uluhlu lobungakanani	I-NPS 14"–120" (DN350–DN3000)
Uvavanyo loxinzelelo	PN10 / PN16 / PN25 \| Iklasi ye-ANSI 150/275/500
Ubuso ngobuso	EN 558-1 Series 13 / Series 14
Isiphelo seFlange	EN 1092-2 / ASME B16.5 / AWWA C207 / ASME B16.47
Uhlolo	EN / AWWA C504 / C519 / NSF 61/372

Izinto eziphambili zezinto

Umzimba	I-ASTM A536 65-45-12 / GGG-40 / GGG40.3 / SS 1.4408
Idiski / Ipleyiti	DI+Ni / CF8 / CF8M / C954 / C958 / GGG-40 / SS 1.4408
Umgodi/Isiqu	I-SS431 / SS420 / SS410 / SS304 / SS316
Isihlalo / Ingubo yokwaleka	I-NBR / EPDM / Viton / PTFE / PFA
Izikhonkwane zeTaper	SS416 / SS316
Ukugquma ngezihlahla	Ibrass / PTFE
Indandatho ye-O	I-NBR / EPDM / Viton / PTFE
Isitshixo	Intsimbi