I-A216 WCB Cast Steel Trunnion Mounted Ball Valve

Ingxenye yesihlalo se-valve yebhola engashintshi inezici zokuziqinisa, ezingafinyelela ukuvala umfula. Zombili izihlalo zevalvu zingavalwa, ngakho-ke awukho umkhawulo wokugeleza ngesikhathi sokufakwa futhi iqondiswa kabili.

Kunezinhlobo ezimbili zezakhiwo zomzimba ze-valve zama-valve amabhola angashintshi: izingcezu ezimbili nezingcezu ezintathu. I-flange ephakathi ixhunywe ngama-bolts, futhi uphawu lwenziwe nge-polytetrafluoroethylene eqinisiwe efakwe kwendandatho yensimbi engagqwali. Kunesiphethu ngemuva kwendandatho yensimbi yokuqinisekisa ukuthi isihlalo sevalvu siqinile ngokumelene nebhola, sigcina uphawu. Kokubili isiqu se-valve esiphezulu nesiphansi sifakwe ama-PTFE bearings ukunciphisa ukungqubuzana nokulondoloza ukusebenza. Iphansi le-shaft encane ifakwe amapuleti okulungisa ukuze kuqinisekiswe indawo yebhola kanye nendandatho yokuvala ekuhlanganyeleni. Ibhobo eligcwele: Imbobo yokugeleza kwevalvu ihambisana nobubanzi bangaphakathi bepayipi lokuhlanza amapayipi.

- Usayizi kusuka ku-2 "kuya ku-24" ( DN50mm kuya ku-DN600mm).

- Izilinganiso zokucindezela ukusuka ku-Class 150LB kuya ku-2500LB (PN10 kuya ku-PN142).

- Isithukuthezi esigcwele noma esincishisiwe.

- Ithambile ivaliwe noma insimbi ivaliwe.

- RF, RTJ noma BW ekupheleni.

- Imodi yokushayela ingaba manual, kagesi, i-pneumatic.

Idizayini Izinga: API 608, API 6D, ASME B16.34

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

Izinga lobuso nobuso: API 6D, ASME B16.10

I-Pressure Test Standard: API 598

Izinzuzo zokusebenza zama-valve ebhola afakwe nge-cast steel trunnion asuka e-BOLON.

1.Ukusebenza kwetorque ephansi

I-sphere isekelwa ama-bearings angaphezulu nangaphansi, anciphisa ukungqubuzana futhi asuse i-torque eyeqile ebangelwa umthwalo omkhulu wokuvala owenziwe ingcindezi yokungena ephusha indawo kanye nesihlalo sokuvala.

2.Ukusebenza okuthembekile kokubeka uphawu

I-PTFE single material sealing ring ishumekwe esihlalweni sevalvu yensimbi engagqwali, futhi isiphethu sifakwa ekugcineni kwesihlalo sevalvu yensimbi ukuze kuqinisekiswe amandla anele okuqinisa indandatho yokuvala. Lapho indawo yokuvala i-valve igqoke ngesikhathi sokusetshenziswa, i-valve iyaqhubeka nokuqinisekisa ukusebenza kahle kokuvala ngaphansi kwesenzo sentwasahlobo.

3.Isakhiwo esingashi

Ukuze uvimbele ukwenzeka kokushisa okungazelelwe noma umlilo, okungabangela indandatho yokuvala ye-PTFE ukuthi ishe futhi kubangele ukuvuza okuphawulekayo, futhi kukhuthaze umlilo, kufakwa indandatho yokuvala engashi phakathi kwe-sphere nesihlalo se-valve. Lapho indandatho yokuvala ishiswa, ngaphansi kwesenzo samandla asentwasahlobo, indandatho yokuvala isihlalo se-valve iphushwa ngokushesha endaweni, yenze insimbi ibe sensimbi futhi ifinyelele izinga elithile lomphumela wokuvala. Ukuhlolwa kokumelana nomlilo kuhlangabezana nezidingo zamazinga e-APl6FA kanye ne-APl607.

4.Umsebenzi wokusiza ukucindezela okuzenzakalelayo

Lapho ingcindezi yendawo emile egumbini le-valve ikhuphuka ngokungavamile ngaphezu kwamandla angaphambili entwasahlobo, isihlalo se-valve sizohlehla futhi sisuke endilinga, sithole umphumela wokukhululeka kokucindezela okuzenzakalelayo. Ngemuva kokukhululeka kwengcindezi, isihlalo se-valve sizolulama ngokuzenzakalelayo

5.Umsebenzi wokuhlanza amapayipi

Izimbobo zokukhipha amanzi zifakwe ezinhlangothini zombili ze-valve ukuze kuhlolwe ukuvuza esihlalweni. Ngesikhathi sokusebenza, lapho i-valve ivuliwe ngokugcwele noma ivaliwe ngokugcwele, ukucindezela ekamelweni eliphakathi kungasuswa futhi ukupakisha kungashintshwa ngokuqondile; Ingakwazi ukukhipha izinto ezisele ekamelweni eliphakathi futhi inciphise ukungcoliswa kwe-medium ku-valve.

6.Ukuvala umjovo we-grease ophuthumayo wokuhlenga

Ngenxa yezinto zangaphandle phakathi nendawo noma umlilo obangela ukwehluleka ngengozi kophawu lwesihlalo se-valve, i-valve yamafutha inikeza ukuxhumana okusheshayo nesibhamu samafutha, kanye nepompo engenisiwe kalula futhi ngokushesha ijove i-grease yokuvala endaweni yokuvala isihlalo se-valve ukuze kuncishiswe ukuvuza.

7.I-valve stem seal ethembekile kanye ne-torque ephansi yokusebenza

Ngaphezu kokusetha izindandatho zokuvala ezijwayelekile, izigxivizo ze-O-ring nazo zifakwe ku-gland yokupakisha, iqinisekisa ukuthembeka kwe-valve stem seal ngokuvalwa okubili; Ukwengezwa kokupakishwa kwe-graphite nokufaka umjovo wamafutha kunciphisa ukuvuza kwesiqu se-valve ngemva komlilo. Ama-bearings ashelelayo kanye nama-thrust bears we-valve stem enza ukusebenza kwe-valve kube lula.

8.Isibhobo esigcwele noma esincishisiwe

Izakhiwo ezibhorekile ezigcwele noma ezincishisiwe zingakhethwa njengoba kudingeka. Imbobo yokugeleza yevalvu egcwele ibhore iyahambisana nobubanzi bangaphakathi bepayipi, okwenza kube lula ukuhlanza ipayipi.

9.Isiqu se-valve singanwetshwa

Ngokwezidingo zokufakwa noma zokusebenza, isiqu se-valve singanwetshwa. I-valve yebhola yenduku enwetshiwe, elungele kakhulu igesi yasemadolobheni nezinye izikhathi ezidinga ukubekwa kwepayipi eligqitshiwe. Ubukhulu besiqu se-valve esandisiwe buyonqunywa ngokwezidingo zekhasimende.

10.Ukusebenza okuguquguqukayo

Ukusetshenziswa kwezihlalo kanye nama-stem bearings ane-coefficient encane yokungqubuzana kanye nezakhiwo ezinhle zokuzigcoba kunciphisa kakhulu i-torque yokusebenza ye-valve. Ngakho-ke, ngisho nangaphandle kokuhlinzeka ngamafutha okufaka uphawu, i-valve ingasebenza ngokuguquguqukayo nangokukhululekile isikhathi eside.