Ma valve a zipata

Ma valve olowera pachipata amapangidwa kuti ayambe kapena kuyimitsa kuyenda, ndipo ngati njira yowongoka yamadzimadzi komanso kuletsa kocheperako kumafunika. Muutumiki, ma valve awa nthawi zambiri amakhala otseguka kapena otsekedwa kwathunthu.

Diski ya valve ya Chipata imachotsedwa kwathunthu pamene valve yatsegulidwa; disk imakokedwa kwathunthu mu Bonnet ya valve. Izi zimasiya mwayi wodutsa mu valve pamtunda womwewo wamkati monga pipesystem yomwe valve imayikidwa. Valve yachipata ingagwiritsidwe ntchito pazamadzimadzi ambiri ndipo imapereka chisindikizo cholimba ikatsekedwa.

Kupanga valve ya Gate

Mavavu a pachipata amakhala ndi zigawo zitatu zazikulu: thupi, bonnet, ndi trim. Thupi nthawi zambiri limalumikizidwa ndi zida zina pogwiritsa ntchito zolumikizira zopindika, zomata kapena zomata. Boneti, yomwe imakhala ndi ziwalo zosuntha, imamangiriridwa ku thupi, nthawi zambiri ndi mabawuti, kulola kukonza. The valve trim imakhala ndi tsinde, chipata, disc kapena wedge ndi mphete zapampando.

Ponyani zitsulo zopindika pachipata valavu pamakampani amafuta ndi gasi

Ma disks a valve ya Gate

Ma valve a zipata amapezeka ndi ma disks osiyanasiyana kapena wedges. Kusintha kwa ma valve a Gate nthawi zambiri kumapangidwa ndi mtundu wa wedge womwe umagwiritsidwa ntchito.

Zodziwika kwambiri zinali:

• Solid wedge ndi disk yomwe imagwiritsidwa ntchito kwambiri chifukwa cha kuphweka komanso mphamvu zake.
  Valavu yokhala ndi mphero yamtunduwu imatha kuyikidwa pamalo aliwonse ndipo ndiyoyenera pafupifupi zakumwa zonse. Chingwe cholimba ndi chomangika cholimba chachidutswa chimodzi, ndipo chimakhala chosavuta kuyenda movutikira.
• Flexible wedge ndi chimbale chachidutswa chimodzi chokhala ndi chodulidwa mozungulira kuti chiwongolere kuwongolera zolakwika kapena kusintha kwa ngodya pakati pa mipando.
  Kuchepetsako kudzasiyana kukula, mawonekedwe ndi kuya. Kudula kozama, kopapatiza kumapereka kusinthasintha pang'ono koma kumakhalabe ndi mphamvu.
  Kudula kozama komanso kokulirapo, kapena kuponyedwa mkati, kumasiya zinthu zazing'ono pakati, zomwe zimalola kusinthasintha, koma kusokoneza mphamvu.
• Split wedge imadzisintha yokha ndikudzipanga yokha ku mbali zonse ziwiri. Mtundu uwu wa wedge uli ndi zomanga ziwiri zomwe zimakhala pakati pa mipando yopindika mu thupi la valve. Mtundu uwu wa mphero ndi woyenera zochizira sanali condensing mpweya ndi zakumwa pa yachibadwa kutentha, makamaka dzimbiri zamadzimadzi.

Tsinde la valve ya Gate

Tsinde, lomwe limagwirizanitsa gudumu lamanja ndi diski wina ndi mnzake, limayang'anira malo oyenera a disk. Zitsanzo nthawi zambiri zimapangidwira, ndipo zimagwirizanitsidwa ndi diski pogwiritsa ntchito ulusi kapena njira zina. Pofuna kupewa kutayikira, m'dera la chisindikizo, kutsirizitsa kwabwino kwa tsinde ndikofunikira.

Ma valve a gate amagawidwa ngati awa:

• Tsinde Lokwera
• Tsinde Losakwera

Kwa valavu yamtundu wa Rising Stem, tsinde lidzakwera pamwamba pa gudumu lamanja ngati valavu yatsegulidwa. Izi zimachitika, chifukwa tsinde limalumikizidwa ndi ulusi wa Goli. Goli ndi gawo lofunikira kuchokera ku Rising Stem valve ndipo limayikidwa pa Bonnet.

Kwa valavu yamtundu wa No Rising Stem, palibe kusuntha kwa tsinde ngati valavu yatsegulidwa. Tsinde limayikidwa mu disk. Pamene gudumu la m'manja pa tsinde likuzungulira, diski imayenda mmwamba kapena pansi pa tsinde pa ulusi pamene tsinde limakhala lokhazikika.

Mu Menyu yayikulu "Mavavu" mupeza maulalo azithunzi (zazikulu) zamitundu yonse iwiri.

Mipando ya valve ya Gate

Mipando ya ma valve a Gate imaperekedwa molumikizana ndi thupi la valve kapena mumtundu wa mphete zomangira. Kumanga mphete zapampando kumapereka mipando yomwe imakulungidwa pamalo ake kapena kukanikizidwa ndikumangirira ku thupi la valve. Njira yomaliza yomangayi ikulimbikitsidwa kuti ikhale yotentha kwambiri.

Mipando yophatikizika imapereka mpando wa zinthu zomwezo zomangidwira ngati ma valve pamene mipando yolowetsedwa kapena yopindika imalola kusiyanasiyana. Mphete zokhala ndi zowoneka zolimba zitha kuperekedwa kuti zigwiritsidwe ntchito pomwe zikufunika.

Ubwino ndi Kuipa kwa mavavu a Gate

Ubwino:

• Zotsatira zabwino za shutoff
• Mavavu a zipata ndi bidirectional choncho angagwiritsidwe ntchito mbali ziwiri
• Kutaya mphamvu kudzera mu valve ndikochepa

Zoyipa:

• Iwo sangakhoze kutsegulidwa mwamsanga kapena kutsekedwa
• Ma valve a zipata si oyenera kuwongolera kapena kutulutsa mpweya
• Amakhudzidwa ndi kugwedezeka pamalo otseguka