Choyamba,Kodi Check Valves ndi chiyani, tanthauzo la valavu yoyendera.

Vavu yoyang'ana imatanthawuza kudalira sing'anga yomwe ikuyenda ndikutsegula ndi kutseka valavu, yomwe imagwiritsidwa ntchito poletsa kubweza kwa media,

amadziwikanso kutinjira imodzi yotuluka valve,valavu yosabwerera , ndi valavu yakumbuyo yakumbuyo. Vavu yoyang'ana ndi mtundu wa valve yokhayokha, ntchito yake yayikulu ndikuletsa kubweza kwa sing'anga, kuteteza mpope ndi galimoto yoyendetsa kuti zisabwerere, komanso kutulutsa kwapakati pa chidebe. Ma valve owunika atha kugwiritsidwanso ntchito kudyetsa mizere momwe kukakamiza kumatha kukwera kupitilira kukakamiza kwadongosolo.

 

Chachiwiri, mfundo zofunika pakumanga ndi kukhazikitsa ma valve:

1, malo oyika, kutalika, kuitanitsa ndi kutumiza kunja kuyenera kukwaniritsa zofunikira za mapangidwe, tcherani khutu ku kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake.

2, valavu iyenera kuyang'aniridwa musanayike, valve nameplate iyenera kukwaniritsa zomwe zilipo panopa. Kwa valavu yomwe mphamvu yake yogwira ntchito ndi yaikulu kuposa 1.0MPa ndipo imagwira ntchito yodula pa chitoliro chachikulu, kuyesa mphamvu ndi zolimba ziyenera kuchitidwa musanayike, ndipo valve yoyenerera ingagwiritsidwe ntchito. Kuyesa kwamphamvu, kuthamanga kwa mayeso ndi nthawi 1.5 kukakamiza mwadzina, nthawiyo si yochepera 5min, chipolopolo cha valve, kulongedza kuyenera kukhala koyenera popanda kutayikira. Pakuyesa kolimba, kukakamiza koyesa ndi nthawi 1.1 ya kukakamiza mwadzina.

3. Musapangitse kuti valavu ya cheki ikhale yolemera mu payipi. Ma valve akuluakulu a chekeni ayenera kuthandizidwa paokha kuti asakhudzidwe ndi kukakamizidwa kopangidwa ndi chitoliro.

Chachitatu, Kulakwitsa ndi Kuthetsa

Ⅰ, Kutuluka kwamkati

1. Malo osindikizira amamangiriridwa ndi dothi.

2. Kusindikiza pamwamba kumawonongeka ndi mphamvu ya hydraulic.

3. Chotsani zinyalala pa disc ndi malo osindikizira mipando ndikutsuka ndi palafini.

4. Rework disc ndi mpando kapena kusintha chisindikizo.

Ⅱ, Kutuluka kwakunja

Kutayikira pa ma valve thupi ndi kulumikizana kwa boneti

1. Maboliti olumikizira sakumizidwa mofanana kapena mphamvu yolimbikitsira isanakwane.

2. Flange yosindikiza pamwamba yawonongeka.

3. Gasket imayikidwa molakwika ndikuwonongeka kapena imalephera pakatha ntchito yayitali kwambiri.

4. Limbikitsani mofanana ma bolts ndi mtedza wolumikiza thupi la valve ku chivundikiro cha valve.

5. Kukonzanso ndi kukonza malo osindikizira a flange.

6. Bwezerani gasket ndikuyiyika bwino.

Ⅲ, Chimbale chasweka

Kupanikizika kwapakatikati isanayambe komanso itatha kusinthasintha kwa valve, disc nthawi zambiri imagundana ndi mpando, ndipo diski ya zinthu zina zowonongeka zimakhala zosavuta kusweka.

1. Sankhani ductile material disc.

2. Sinthani ndondomekoyi kuti muchepetse kapena kupewa kusinthasintha kwapang'onopang'ono nthawi zambiri musanayambe komanso pambuyo pa valve.