Hauv kev thauj cov kua dej thiab tswj cov tshuab, cov tshev valve yog cov cuab yeej tseem ceeb rau kev tiv thaiv kev thim rov qab ntawm qhov nruab nrab vim muaj kev hloov pauv siab lossis kev kaw haujlwm. Siv dav hauv ntau yam kev lag luam thiab pej xeem cov kav dej sib txuas, lawv yog qhov tseem ceeb rau unidirectional ntws thiab thim rov qab sealing. Los ntawm kev qhib thiab kaw lub tshuab tsis siv neeg, lawv ua kom cov dej ntws tawm hauv cov kev taw qhia, tiv thaiv cov cuab yeej, tswj kev ruaj ntseg, thiab tiv thaiv qhov tsis tsim nyog lub zog thiab qhov nruab nrab poob.
Cov txheej txheem tseem ceeb ntawm daim tshev valve muaj lub cev lub cev, lub valve disc (lossis valve core), lub rooj zaum valve, thiab cov khoom qhia. Lub cev lub cev muaj qhov nkag thiab qhov hluav taws xob flanges lossis kev sib tshuam, tsim txoj hauv kev txuas mus ntxiv nrog cov kav dej. Lub valve disc yog tus actuator rau unidirectional ntws thiab thim rov qab sealing, thiab tuaj yeem tsim ua viav vias, nqa, npauj npaim, pob, lossis hom diaphragm, nyob ntawm nws daim ntawv qauv. Lub rooj zaum valve thiab valve disc tsim ib qho kev sib khi uas haum nruj hauv qab qhov sib txawv ntawm qhov sib txawv, tiv thaiv rov qab ntawm qhov nruab nrab. Cov txheej txheem qhia kom ruaj khov valve disc txav, txo jamming thiab hnav. Nws txoj hauv kev ua haujlwm yog raws li hauv qab no: Thaum lub sij hawm mus rau pem hauv ntej, lub thrust ntawm nruab nrab overcomes lub luj ntawm lub valve disc los yog lub preload ntawm lub caij nplooj ntoos hlav, ua rau lub valve disc qhib thiab khiav txoj kev yuav unobstructed. Thaum lub siab poob qis los yog qhov nruab nrab sim ntws rov qab, lub valve disc sai sai rov qab los ntawm qhov kev txiav txim ntawm qhov rov qab siab sib txawv los yog rov pib dua txheej txheem, txiav tawm txoj kev thiab ua tiav kev tiv thaiv rov qab tsis siv neeg.
Raws li lawv cov qauv qauv, cov khoom siv kos valve txhua tus muaj lawv tus yam ntxwv. Lub viav vias kos valve qhib los ntawm tig lub valve disc nyob ib ncig ntawm lub pob khawm, ua rau qis qis tsis kam. Lawv tsim nyog rau qhov loj - txoj kab uas hla, qis - ntws- tus nqi dej huv lossis roj kav dej, tab sis muaj qee yam yuav tsum tau hais txog kev teeb tsa thiab qhov chaw. Lift check li qub muaj valve discs uas txav mus los ntawm lub axis, muab kev sib khi zoo dua. Lawv feem ntau siv rau hauv me me - txoj kab uas hla, siab - cov ntawv thov siab, tab sis yuav tsum muaj kev huv huv dua. Npauj Npaim kos li qub ua ke cov yam ntxwv ntawm npauj npaim li qub, yog qhov me me thiab lub teeb hauv qhov hnyav, thiab tsim nyog rau cov tshuab uas muaj qhov chaw tsawg thiab xav tau cov lus teb sai. Pob thiab diaphragm kos li qub qhib thiab kaw siv cov dov ntawm lub pob lossis qhov deformation ntawm lub diaphragm, feem. Lawv muaj ib tug compact qauv, haum rau corrosive los yog particulate media, thiab yog heev rhiab heev.
Qhov zoo ntawm cov tshev valve yog nyob rau hauv lawv cov kev ua haujlwm tsis siv neeg tsis siv lub zog sab nraud, cov lus teb ceev ceev, thiab kev tiv thaiv zoo ntawm cov dej rauj, cov khoom siv thim rov qab, thiab cov khoom paug tawm los ntawm kev rov qab los. Hauv kev siv dej thiab dej engineering, HVAC, petrochemical, cov khoom siv hluav taws xob, tshuaj, khoom noj, thiab hluav taws xob tiv thaiv hluav taws xob, cov khoom siv hluav taws xob tau siv dav hauv qhov chaw tseem ceeb xws li cov twj tso kua mis, compressor downstream, heat exchanger bypasses, thiab cia tank inlet thiab qhov hluav taws xob kav, ua lub luag haujlwm hauv kev tiv thaiv cov twj tso kua mis thiab compressors, tswj cov txheej txheem siab, thiab cais cov xov xwm sib txawv.
Thaum xaiv lub pob valve, cov khoom ntawm qhov nruab nrab, kev ua haujlwm siab thiab qhov kub thiab txias, qhov ntau txaus, txoj kab uas hla, thiab kev teeb tsa yuav tsum tau txiav txim siab. Piv txwv li, rau conveying yooj yim crystallizing los yog viscous media, ib tug qauv nrog unobstructed ntws raws thiab tsawg stagnation yuav tsum tau xaiv; siab - lub tshuab siab yuav tsum xyuas kom meej tias lub valve lub cev thiab qhov chaw sib khi ua tau raws li qhov yuav tsum tau muaj zog; rau daim ntawv thov uas yuav tsum tau sealing siab heev, ib tug hlau hard seal los yog elastic seal tsim yog pom zoo. Tsis tas li ntawd, cov kev taw qhia ntawm kev teeb tsa yuav tsum nruj me ntsis ua raws li cov xov xwm ntws cov lus qhia kom tsis txhob ua tsis tiav vim rov qab teeb tsa.
Nrog rau kev nce qib hauv cov khoom siv thiab kev tsim cov thev naus laus zis, siab -kev ua tau zoo ntawm cov khoom siv hluav taws xob txuas ntxiv txhim kho nyob rau hauv cov nqe lus ntawm corrosion kuj, hnav tsis kam, tsis tshua muaj dej tsis kam, thiab lub neej ua haujlwm ntev, thiab tuaj yeem sib xyaw cov lus qhia tawm tswv yim thiab kev soj ntsuam ntse kom ua tiav cov kev saib xyuas tej thaj chaw deb. Nrog nws cov qauv yooj yim, txhim khu kev qha kev ua haujlwm, thiab kev saib xyuas yooj yim, daim tshev valve tau dhau los ua ib qho tseem ceeb unidirectional flow tiv thaiv ntaus ntawv nyob rau hauv niaj hnub tswj cov kua dej, muab kev txhawb zog rau kev nyab xeeb thiab ua haujlwm zoo ntawm cov chaw tsim khoom thiab pej xeem.
