Npauj npaim valve qhib thiab kaw daim yog ib tug disc-zoo li tus npauj npaim phaj, uas rotates nyob ib ncig ntawm nws tus kheej axis nyob rau hauv lub cev ntawm lub valve, yog li ua tiav qhov qhib thiab kaw los yog regulating ntawm lub valve yog hu ua npauj npaim valve. Npauj npaim li qub feem ntau tsawg dua 90 degrees qhib thiab kaw. Npauj npaim li qub thiab npauj npaim rods tsis muaj lub zog ntawm tus kheej. Yuav kom nrhiav tau tus npauj npaim phaj, cab iav reducer yuav tsum tau ntsia rau ntawm lub valve qia. Kev siv cov cab iav reducer tuaj yeem tsis tsuas yog ua kom npauj npaim phaj muaj peev xwm kaw tus kheej, ua npauj npaim phaj nres ntawm txhua txoj haujlwm, tab sis kuj txhim kho kev ua haujlwm ntawm lub valve.
Kev lag luam npauj npaim li qub yog tus cwj pwm los ntawm kev kub siab ua haujlwm, kev kub siab ntau, qhov loj nominal txoj kab uas hla, carbon steel lub cev thiab hlau nplhaib es tsis txhob roj hmab nplhaib. Loj kub npauj npaim valve yog welded los ntawm steel phaj, feem ntau yog siv rau flue gas duct thiab gas pipeline ntawm kub nruab nrab. Concentric npauj npaim valve Cov yam ntxwv ntawm cov npauj npaim valve no yog qhov axis ntawm qia, qhov nruab nrab ntawm lub phaj npauj npaim thiab qhov nruab nrab ntawm lub cev yog nyob rau hauv tib txoj hauj lwm. Cov qauv siv hluav taws xob muaj qhov zoo ntawm cov qauv yooj yim thiab siv tau yooj yim. Hom roj hmab lined npauj npaim valve belongs rau hom no.
Qhov tsis zoo yog tias lub phaj npauj npaim thiab lub rooj zaum valve yeej ib txwm nyob rau hauv lub xeev ntawm extrusion, khawb, loj kuj nyob deb thiab ceev hnav thiab tsim kua muag. Yuav kom daws tau qhov teeb meem ntawm extrusion ntawm npauj npaim phaj thiab lub rooj zaum ntawm concentric npauj npaim valve, ib qho eccentric npauj npaim valve yog tsim. Nws cov yam ntxwv tshwj xeeb yog tias lub axis ntawm qia deviates los ntawm qhov nruab nrab ntawm lub phaj npauj npaim, kom qhov qis kawg ntawm tus npauj npaim phaj tsis yog qhov nruab nrab ntawm kev sib hloov, thiab qhov ntau dhau extrusion ntawm qis kawg ntawm daim phaj npauj npaim thiab qhov kawg ntawm tus npauj npaim phaj. rooj zaum raug txo.
Ob chav eccentric npauj npaim valve yog feem ntau siv ob chav eccentric npauj npaim valve, uas yog ntxiv txhim kho raws li ib qho eccentric npauj npaim valve. Cov qauv nta uas lub axis ntawm lub valve qia deviates los ntawm ob qho tib si qhov chaw ntawm npauj npaim phaj thiab qhov chaw ntawm lub cev. Cov nyhuv ntawm ob chav eccentricity enables tus npauj npaim phaj kom tshem tawm ntawm lub rooj zaum valve tam sim ntawd tom qab lub valve qhib, zoo heev tshem tawm qhov tsis tsim nyog tshaj-extrusion thiab khawb ntawm npauj npaim phaj thiab lub rooj zaum valve, txo qhov qhib tsis kam, txo qhov hnav thiab tsim kua muag, thiab txhim kho lub neej kev pab cuam ntawm lub rooj zaum valve.