A216 WCB Cast Steel Trunnion Wokwera Mpira Vavu

Chigawo chapampando wa valve yokhazikika chimakhala ndi mawonekedwe odzilimbitsa okha, omwe amatha kukwaniritsa kusindikiza kumtunda. Mipando yonse iwiri ya valve ikhoza kusindikizidwa, kotero palibe choletsa kutuluka panthawi yoika ndipo ndi bidirectional.

Pali mitundu iwiri ya ma valve a thupi la ma valve okhazikika: zidutswa ziwiri ndi zitatu. Flange yapakati imalumikizidwa ndi mabawuti, ndipo chisindikizocho chimapangidwa ndi polytetrafluoroethylene yolimbikitsidwa yomwe imayikidwa mu mphete yachitsulo chosapanga dzimbiri. Pali kasupe kumbuyo kwa mphete yachitsulo kuonetsetsa kuti mpando wa valve uli wolimba kwambiri motsutsana ndi mpira, kusunga chisindikizo. Ma valavu onse apamwamba ndi otsika amakhala ndi PTFE mayendedwe kuti achepetse mikangano ndikupulumutsa ntchito. Pansi pa shaft yaying'ono imakhala ndi mbale zosinthira kuti zitsimikizire malo a mpira ndi mphete yosindikiza pamgwirizano. Kubowola kwathunthu: Bowo la ma valve limayendera limodzi ndi mainchesi amkati a payipi poyeretsa mapaipi.

- Kukula kuchokera 2 "mpaka 24" ( DN50mm kuti DN600mm).

- Magawo opanikizika kuyambira Class 150LB mpaka 2500LB (PN10 mpaka PN142).

- Kubowola kwathunthu kapena kuchepetsedwa.

- Zofewa zosindikizidwa kapena zitsulo zosindikizidwa.

- RF, RTJ kapena BW mapeto.

- Mayendedwe oyendetsa amatha kukhala pamanja, magetsi, pneumatic.

Design Standard: API 608, API 6D, ASME B16.34

Flange Diameter Standard: ASME B16.5, ASME B16.47, ASME B16.25

Pamaso ndi maso Muyezo: API 6D, ASME B16.10

Pressure Test Standard: API 598

Ubwino wamagwiridwe a cast steel trunnion wokwera mavavu a mpira kuchokera ku BOLON.

1.Low torque ntchito

Chigawocho chimathandizidwa ndi mayendedwe apamwamba ndi otsika, kuchepetsa kukangana ndikuchotsa torque yochulukirapo chifukwa cha kusindikiza kwakukulu kopangidwa ndi kukakamiza kolowera komwe kumakankhira gawolo ndi mpando wosindikiza.

2.Ntchito yosindikiza yodalirika

Mphete yosindikiza ya PTFE imodzi imayikidwa pampando wa valavu yachitsulo chosapanga dzimbiri, ndipo kasupe amayikidwa kumapeto kwa mpando wa valve yachitsulo kuti atsimikizire kuti mphete yosindikizira isanakwane yokwanira. Pamene chisindikizo cha valve chikugwiritsidwa ntchito, valve imapitirizabe kuonetsetsa kuti ntchito yabwino yosindikizira ikugwira ntchito pansi pa kasupe.

3.Kapangidwe kamoto

Pofuna kupewa kuchitika kwadzidzidzi kutentha kapena moto, zomwe zingapangitse mphete yosindikizira ya PTFE kuwotcha ndikuyambitsa kutayikira kwakukulu, ndikulimbikitsa moto, mphete yosindikiza moto imayikidwa pakati pa gawo ndi mpando wa valve. Pamene mphete yosindikizira itenthedwa, pansi pa mphamvu ya kasupe, mphete yosindikizira mpando wa valve imakankhidwira mofulumira pamtunda, kupanga chitsulo ku chisindikizo chachitsulo ndikukwaniritsa kusindikiza kwina. Kuyesa kukana moto kumakwaniritsa zofunikira za APl6FA ndi APl607.

4.Ntchito yochepetsera kuthamanga kwadzidzidzi

Pamene kukakamiza kwa sing'anga yosasunthika mu chipinda cha vavu kukuchulukirachulukira kupitirira mphamvu ya masika, mpando wa valavu umabwerera ndikuchoka pamalopo, zomwe zimapangitsa kuti pakhale mpumulo wokhazikika. Pambuyo pa kupanikizika, mpando wa valve udzachira

5.Ntchito yoyeretsa mapaipi

Mabowo okhetsa amayikidwa mbali zonse za thupi la valve kuti awone ngati pali kutayikira pampando wa valve. Panthawi yogwira ntchito, valavu ikatsegulidwa kapena kutsekedwa kwathunthu, kupanikizika mkati mwa chipinda chapakati kumatha kuchotsedwa ndipo kunyamula kungasinthidwe mwachindunji; Ikhoza kutulutsa zinthu zotsalira m'chipinda chapakati ndikuchepetsa kuipitsidwa kwa sing'anga pa valve.

6.Kusindikiza kupulumutsa jekeseni wamafuta mwadzidzidzi

Chifukwa cha zinthu zakunja pakatikati kapena pamoto zomwe zimayambitsa kulephera mwangozi kwa chisindikizo cha mpando wa valve, valavu ya girisi imapereka kugwirizana kwachangu ndi mfuti yamafuta, ndi mpope wotumizidwa kunja mosavuta ndipo mwamsanga amalowetsa mafuta osindikizira mu malo osindikizira mpando wa valve kuti athetse kutayikira.

7.Chisindikizo chodalirika cha valve ndi torque yochepa yogwiritsira ntchito

Kuphatikiza pa kukhazikitsa mphete zosindikizira zokhazikika, zisindikizo za O-ring zimayikidwanso pa gland yonyamula, kuonetsetsa kudalirika kwa chisindikizo cha valve tsinde ndi kusindikiza kawiri; Kuwonjezeredwa kwa graphite kulongedza ndi kusindikiza jekeseni wamafuta kumachepetsa kutuluka kwa tsinde la valve pambuyo pa moto. Ma bere otsetsereka ndi mayendedwe opondereza a tsinde la valavu amapangitsa kuti valavu ikhale yosavuta.

8.Kubowola kwathunthu kapena kuchepetsedwa

Mitundu yoboola kapena yocheperako imatha kusankhidwa ngati pakufunika. Kubowola kwa valavu yodzaza ndi valavu kumagwirizana ndi kukula kwapakati kwa payipi, zomwe zimapangitsa kuti payipi ikhale yosavuta kuyeretsa.

9 .Tsinde la valve likhoza kukulitsidwa

Malingana ndi zofunikira za kukhazikitsa kapena ntchito, tsinde la valve likhoza kukulitsidwa. Vavu yowonjezedwa ya mpira, makamaka yoyenera gasi wakutawuni ndi zochitika zina zomwe zimafunikira kuyika mapaipi okwiriridwa. Kukula kwa tsinde la valve yowonjezera kudzatsimikiziridwa malinga ndi zosowa za makasitomala.

10.Ntchito yosinthika

Kugwiritsiridwa ntchito kwa mipando ndi tsinde yokhala ndi coefficient yaing'ono yolimbana ndi zinthu zabwino zodzipaka mafuta kumachepetsa kwambiri torque yogwiritsira ntchito valve. Choncho, ngakhale popanda kupereka mafuta osindikizira, valavu imatha kugwiritsidwa ntchito mosinthasintha komanso momasuka kwa nthawi yaitali.