Mavavu a mpira amagwira ntchito yofunika kwambiri pamapaipi apanyanja popereka zodalirika, zotsekera mwachangu komanso zowongolera. monga makina opangira mafuta, makina amadzi a ballast, ndi machitidwe oletsa moto.
1. Full Bore Ball Valves
Kufotokozera: Mavavuwa ali ndi mpira wokulirapo komanso doko, kuwonetsetsa kuti m'mimba mwake ikugwirizana ndi payipi, zomwe zimapangitsa kuti madzi aziyenda mopanda malire.
Ntchito: Zoyenera kugwiritsa ntchito zomwe zimafuna mphamvu yothamanga kwambiri, monga makina amadzi a ballast ndi mizere yozizirira injini.
Ubwino: Imachepetsa kutsika kwa mphamvu, imachepetsa kugwiritsa ntchito mphamvu, komanso imalola kuyeretsa ndi kukonza mosavuta.
2. Kuchepetsa Bore Ball Valves
Kufotokozera: Kuzungulira kwa doko ndikocheperako kuposa mapaipi, kuletsa kuyenda kwamadzimadzi pang'ono.
Kugwiritsa ntchito: Koyenera mizere yosafunikira komwe kutsika pang'ono kumaloledwa, monga makina othandizira amadzi kapena mizere yoyatsira mafuta.
Ubwino: Zotsika mtengo komanso zophatikizika poyerekeza ndi ma valve odzaza.
3. Mavavu a Mpira Woyandama
Kufotokozera: Mpirawo umayandama pang'ono pansi pamtsinje pansi pa kukanikiza, kukanikiza mpando kuti upange chisindikizo cholimba.
Kugwiritsa ntchito: Zodziwika pamakina otsika mpaka apakatikati monga ma lines amafuta ndi ma bilge system.
Ubwino: Mapangidwe osavuta, kusindikiza kodalirika, komanso kukonza kochepa.
4. Trunnion Mounted Ball Valves
Kufotokozera: Mpira umakhazikika pamwamba ndi pansi, kuteteza kuyenda pansi pa kupanikizika kwakukulu.
Kugwiritsa ntchito: Ndikofunikira pakugwiritsa ntchito mwamphamvu kwambiri monga chitetezo chamoto, kunyamula katundu, ndi mizere yayikulu yamafuta.
Ubwino: Kuthekera kosindikiza kwakukulu komanso torque yocheperako, kuwonetsetsa kuti ikugwira ntchito nthawi yayitali.
5. V-Port Ball Valves
Kufotokozera: Mpira uli ndi doko lowoneka ngati "V", lomwe limalola kuwongolera bwino komanso kugwedezeka.
Kugwiritsa ntchito: Kumapezeka m'mapulogalamu omwe amafunikira malamulo olondola oyenda, monga makina a jakisoni wamafuta ndi dosing yamankhwala.
Ubwino: Amapereka kuwongolera kwakukulu pakuyenda kwamadzimadzi poyerekeza ndi ma valve wamba a mpira.
6. Mavavu a Mpira Wanjira Zitatu ndi Zinayi
Kufotokozera: Ma valve awa ali ndi madoko angapo, omwe amalola kusintha kwa 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.
Kugwiritsa ntchito: Kumagwiritsidwa ntchito pamapaipi ovuta kusamutsa mafuta, kuwongolera kwa ballast, ndikusintha pakati pa mizere yamadzimadzi osiyanasiyana.
Ubwino: Imachepetsa kufunika kwa mavavu angapo komanso imathandizira kupanga dongosolo.
7. Metal Seated Ball Valves
Kufotokozera: Zopangidwa ndi mipando yachitsulo m'malo mwa zipangizo zofewa, zomwe zimapereka kukhazikika kwapamwamba.
Ntchito: Yoyenera kutentha kwambiri komanso kugwiritsa ntchito madzimadzi abrasive, monga mizere ya nthunzi ndi makina otulutsa mpweya.
Ubwino: Kukana kuvala kwakukulu komanso moyo wautali wautumiki.
8. Mavavu a Mpira wa Cryogenic
Kufotokozera: Amapangidwa kuti azigwira kutentha kwambiri, komwe nthawi zambiri amagwiritsidwa ntchito mu LNG (liquefied natural gas) kachitidwe.
Ntchito: Zofunikira kwa onyamula LNG am'madzi komanso kusamutsa mafuta a cryogenic.
Ubwino: Imasunga magwiridwe antchito pansi pa kutentha kwa sub-zero popanda kusokoneza kukhulupirika kwa chisindikizo.
9. Top Kulowa Mpira Mavavu
Kufotokozera: Amalola kukonza ndi kukonza kuchokera pamwamba popanda kuchotsa valavu paipi.
Kugwiritsa ntchito: Kugwiritsidwa ntchito m'mapaipi akulu ndi machitidwe ovuta omwe amafunikira kuwunika pafupipafupi, monga mizere yayikulu yamadzi am'nyanja.
Ubwino: Amachepetsa nthawi yopuma komanso amathandizira kukonza.
10. Mavavu a Mpira Wotetezedwa ndi Moto
Kufotokozera: Zokhala ndi zida zosagwira moto zomwe zimatsimikizira kuti zikugwirabe ntchito pakagwa mwadzidzidzi.
Kugwiritsa ntchito: Kuyikidwa muzoletsa moto komanso kasamalidwe kamafuta.
Ubwino: Kumawonjezera chitetezo cha sitima ndi kutsata malamulo.
Nthawi yotumiza: Jan-08-2025