Nws tau ntau tshaj 50 xyoo txij li lub triple eccentric npauj npaim valve tau qhia, thiab nws tau raug tsim los tsis tu ncua dhau 50 xyoo dhau los.Daim ntawv thov ntawm npauj npaim li qub tau nthuav dav ntau yam kev lag luam.Tus thawj npauj npaim valve tsuas yog siv rau kev cuam tshuam thiab kev sib txuas ntawm cov dej tawm.Lub triple eccentric tsim txhim khu kev ua haujlwm ntawm npauj npaim valve.Nws tau dhau los ua ib qho ntawm cov li qub nrog kev ua tau zoo nyob rau hauv cov xwm txheej hnyav tshaj plaws hauv cov txheej txheem tseem ceeb hauv ib puag ncig hauv cov khoom siv hauv cov kav dej.

Raws li lub npe qhia, peb qhov kev ywj pheej offset yog tsim los ua li qub.Triple eccentricity txhais tau tias:

• Offset 1

Cov ncej yog muab tso rau hauv qab ntawm lub dav hlau ntawm lub sealing nto los muab txoj hauv kev txuas mus tas li.

• Offset 2

Cov ncej yog muab tso rau ib sab ntawm cov yeeb nkab / valve centerline kom tshem tawm cov kev sib txhuam ntawm lub foob thiab lub rooj zaum

• Offset 3

Lub rooj zaum thiab kaw lub khob hliav qab centerlines yog inclined rau ntawm cov yeeb nkab / valve centerline.Qhov no thib peb offset kiag li tshem tawm rubbing.Lub khob hliav qab no, nrog rau ob lub eccentric ncej offsets, tso cai rau lub disc kaw rau lub rooj zaum tsis muaj kev sib txhuam.

Lub rooj zaum tsim no kuj tso cai rau kev sib khi zoo ib yam, thiab yog li kaw nruj hauv lub rooj zaum hlau tsim.Qhov kev tsim no yog tus nqi qis dua, kev xaiv qis dua (yooj yim rau automate), dua li lwm hom hlau zaum li qub.

Triple offsets feem ntau yog siv rau hauv daim ntawv thov ike high pressure steam (tshaj 150 PSI), superheated- steam, high temperature gases and oils, high temperature applications are good for this type of valve because a metal seat is required over a soft seat.