Lub flat drve yog lub valve teb nyob rau hauv cov duab ntawm cov tswv cuab kaw lossis plunger. Los ntawm kev sib hloov 90 degrees, channel chaw nres nkoj ntawm lub valve ntsaws yog tib yam li lossis sib cais los ntawm channel chaw nres nkoj, yog li kom paub qhov qhib lossis kaw ntawm lub valve.
Cov duab ntawm cov ntsaws ntawm lub ntsaws valve yuav yog cylindrical lossis conical. Hauv cylindrical valve plugs, cov nqe lus feem ntau yog duab sib dhos; Nyob rau hauv conical valve plugs, cov nqe vaj yog trapezoidal. Cov duab no ua rau cov qauv ntawm lub teeb ntsaws valve, tab sis tib lub sijhawm, nws kuj ua rau qee yam ploj. Plug li cas yog ntau haum rau kaw tawm thiab txuas cov xov xwm thiab kev sib txawv, tab sis kev tawm tsam ntawm cov chaw sib khi, lawv kuj tuaj yeem siv rau kev thawb tawm. Tig lub ntsaws ruaj ruaj ua kom lub zawj nyob ib ncig mus rau cov yeeb nkab qhib, thiab tig lub plug) counterclockwise rau cov qhov rooj sib tsoo rau cov yeeb nkab kaw.
Cov hom ntawm Plug Barves yog muab faib ua cov hauv qab no:
1. Zawm plug Valve
Tight-hom plug li cas yog siv nyob rau hauv qis-siab ncaj-los ntawm cov raj xa dej. Kev sib khi kev ua tau nyob ntawm kev haum ntawm cov ntsaws thiab lub cev ntsaws. Lub compression ntawm kev sib khi saum npoo yog tiav los ntawm zawm cov txiv ntseej. Feem ntau siv rau PN≤0.6MPA.
2. Cov plug plug Valve
Ntim plug valve yog kom ua tiav cov ntsaws thiab ntsaws lub cev sealing los ntawm kev nqus cov khoom ntim. Vim tias cov ntim, kev sib khi ua tau zoo dua. Feem ntau hom no ntawm Plug Valve muaj cov laj kab ntim, thiab cov ntsaws tsis tas yuav ua rau muaj kev tiv thaiv lub cev valve, yog li txo qhov kev xau tshem tawm. Qhov no ntawm cov ntsaws ntsaws valve yog dav siv rau lub siab ntawm PN≤1MPA.
3.. Kev ua tus kheej-sealing Plug Valve
Tus kheej-sealing ntsaws valve paub cov compression foob ntawm lub ntsaws thiab lub cev ntsaws rau hauv lub siab ntawm nruab nrab nws tus kheej. Qhov kawg kawg ntawm cov ntsaws protrudes upward tawm ntawm lub cev, thiab qhov nruab nrab nkag mus rau lub ntsaws rau hauv lub inlet, thiab cov ntsaws yog nias upwards. Tus qauv no feem ntau siv rau kev tawm teb.
4. Roj-Sealed Plug Valve
Nyob rau hauv xyoo tsis ntev los no, daim ntawv thov ntau yam ntawm cov ntsaws li qub tau txuas ntxiv mus, thiab roj-ntim cov plug li cas tau tshwm sim. Vim tias lubrication lubrication, cov yeeb yaj kiab roj yog tsim ntawm kev sib khi saum npoo ntawm lub ntsaws thiab lub cev ntsaws. Nyob rau hauv txoj kev no, kev sib khi ua tau zoo dua, qhov qhib thiab kaw yog qhov chaw sib khi, thiab cov khoom sib khi yog tiv thaiv kom txhob raug puas. Nyob rau hauv lwm lub sijhawm, vim cov ntaub ntawv sib txawv thiab hloov pauv ntawm ntu, sib txawv nthuav dav yuav tsis muaj qee yam tshwm sim, uas yuav ua rau qee yam kev deformation. Nws yuav tsum raug sau tseg tias thaum ob lub rooj laj no yog pub dawb nthuav thiab cog lus, lub caij nplooj ntoo hlav yuav tsum nthuav dav thiab cog lus nrog nws.
Lub Sijhawm Post: Dec-22-2022