A216 WCB Cast Steel Trunnion Mounted Ball Valve

Icandelo lesihlalo sevalve yebhola esisigxina ineempawu zokuziqinisa, ezinokufikelela ekutywineni phezulu. Zombini izihlalo zevalvu zinokutywinwa, ngoko ke akukho mda wokuqukuqela ngexesha lofakelo kwaye i-bidirectional.

Kukho iindidi ezimbini zezakhiwo zomzimba zevalve yeevalvu zebhola ezisisigxina: amaqhekeza amabini kunye namaqhekeza amathathu. I-flange ephakathi idibaniswe ngamabholiti, kwaye isitywina senziwe nge-polytetrafluoroethylene eqinisiweyo efakwe kwindandatho yensimbi engenasici. Kukho umthombo ngasemva weringi yentsimbi yokuqinisekisa ukuba isitulo sevalve siqinile ngokuchasene nebhola, sigcina isitywina. Zombini izikhondo zevalvu ephezulu nezisezantsi zixhotyiswe ngeebheringi zePTFE ukunciphisa ukukhuhlana kunye nokugcina ukusebenza. I-bottom of the shaft encinci ixhotyiswe ngamacwecwe okulungelelaniswa ukuze kuqinisekiswe indawo yebhola kunye nendandatho yokutywina kwi-joint. Umbhobho ogcweleyo: Imbobo yevalvu iyahambelana nedayamitha yangaphakathi yombhobho wokucoca imibhobho.

- Ubungakanani ukusuka kwi-2 "ukuya kwi-24" ( DN50mm ukuya kwi-DN600mm).

- Imilinganiselo yoxinzelelo ukusuka kwiKlasi ye-150LB ukuya kwi-2500LB (PN10 ukuya kwi-PN142).

- Ukuzala okupheleleyo okanye ukunciphisa ukubhora.

- Itywinwe elithambileyo okanye intsimbi etywiniweyo.

- RF, RTJ okanye BW ekupheleni.

- Imodi yokuqhuba ingaba yincwadana, umbane, i-pneumatic.

Umgangatho woYilo: API 608, API 6D, ASME B16.34

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

Umgangatho wobuso ngobuso: API 6D, ASME B16.10

Umgangatho woVavanyo loxinzelelo: API 598

Izibonelelo zokusebenza ze-cast iron trunnion efakwe kwiivalvu zebhola ezivela kwi-BOLON.

1.Ukusebenza kwetorque ephantsi

I-sphere ixhaswa ziibheringi eziphezulu nezisezantsi, ukunciphisa ukungquzulana kunye nokuphelisa i-torque egqithisileyo ebangelwa ngumthwalo omkhulu wokutywina owenziwe luxinzelelo lokungena olutyhala i-sphere kunye nesihlalo sokutywina.

2.Ukusebenza okuthembekileyo kokutywinwa

Iringi yokutywina ye-PTFE enye ifakwe kwisihlalo sevalve yentsimbi, kwaye i-spring ifakwe ekupheleni kwesihlalo sevalve yesinyithi ukuqinisekisa ukuqina okwaneleyo kwamandla okutywinwa komsesane wokutywina. Xa indawo yokutywina yevalve igqitywe ngexesha lokusetyenziswa, i-valve iyaqhubeka nokuqinisekisa ukusebenza kakuhle kokutywinwa phantsi kwesenzo sentwasahlobo.

3.Isakhiwo somlilo

Ukuze kuthintelwe ukwenzeka kobushushu okanye umlilo ngequbuliso, nto leyo enokubangela ukuba i-PTFE yokutywina itshise kwaye ibangele ukuvuza okubalulekileyo, kwaye ikhuthaze umlilo, ikhonkco lokutywina lomlilo lifakwe phakathi kwe-sphere kunye nesihlalo sevalve. Xa umsesane wokutywina utshisiwe, phantsi kwesenzo samandla asentwasahlobo, ikhonkco lokutywina isihlalo sevalve sityhalelwa ngokukhawuleza kwi-sphere, yenze isinyithi ukuya kwitywina lesinyithi kwaye ifezekisa inqanaba elithile lokutywinwa. Uvavanyo lokumelana nomlilo luhlangabezana neemfuno zemigangatho ye-APl6FA kunye ne-APl607.

4.Umsebenzi wokunciphisa uxinzelelo oluzenzekelayo

Xa uxinzelelo lwendawo emileyo kwigumbi levalvu lunyuka ngokungaqhelekanga ngaphaya kwamandla angaphambili entlakohlaza, isitulo sevalvu siya kurhoxa kwaye siqhawule kwingqukuva, siphumeze isiphumo sokukhululeka koxinzelelo oluzenzekelayo. Emva kokunciphisa uxinzelelo, isihlalo sevalve siya kubuya ngokuzenzekelayo

5.Umsebenzi wokucoca imibhobho

Imingxuma yokukhupha amanzi ifakwe kumacala omabini omzimba wevalvu ukujonga ukuvuza kwesitulo sevalvu. Ngethuba lokusebenza, xa i-valve ivuliwe ngokupheleleyo okanye ivalwe ngokupheleleyo, uxinzelelo olukwigumbi eliphakathi lunokususwa kwaye ukupakisha kunokutshintshwa ngokuthe ngqo; Iyakwazi ukukhupha izinto ezishiyekileyo kwigumbi eliphakathi kwaye inciphise ukungcoliseka kwendawo ephakathi kwivalve.

6.Ukutywina uhlangulo lwenaliti yegrisi olungxamisekileyo

Ngenxa yezinto zangaphandle kwi-medium okanye umlilo obangela ukusilela ngengozi kwesitywina sesihlalo sevalve, ivalve yegrisi ibonelela ngonxibelelwano olukhawulezayo kunye nompu wegrisi, kunye nempompo ethunyelwa ngaphandle ngokufanelekileyo kwaye ngokukhawuleza ifake igrisi yokutywina kwindawo yokutywina isihlalo sevalve ukunciphisa ukuvuza.

7.Ukutywinwa kwesiqu sevalve ethembekileyo kunye netorque ephantsi yokusebenza

Ukongeza kokumisela amakhonkco okutywinwa okusemgangathweni, izitywina ze-O-ring nazo zifakwe kwi-packing gland, ziqinisekisa ukuthembeka kwe-valve stem seal kunye nokutywinwa kabini; Ukongezwa kokupakishwa kwegraphite kunye nokutywinwa kwesitofu segrisi kunciphisa ukuvuza kwesikhondo sevalve emva komlilo. Iibheringi ezityibilikayo kunye neebheringi zokutyhala zesikhondo sevalve zenza ukusebenza kwevalve kube lula.

8.Ukuzala okupheleleyo okanye ukunciphisa ukubhoboza

Izakhiwo zokubhoboza ngokupheleleyo okanye ezincitshisiweyo zinokukhethwa njengoko zifuneka. Umbhobho wokuhamba wevalve egcweleyo uyahambelana nedayamitha yangaphakathi yombhobho, nto leyo eyenza kube lula ukucoca umbhobho.

9.Isiqu sevalve singandiswa

Ngokweemfuno zofakelo okanye zokusebenza, i-valve stem inokwandiswa. Ivalve yebhola yentonga eyandisiweyo, ilungele ngakumbi irhasi yasezidolophini kunye nezinye iziganeko ezifuna ukubekwa kwemibhobho engcwatyiweyo. Ubungakanani besikhondo sevalve eyandisiweyo buya kumiselwa ngokweemfuno zomthengi.

10.Ukusebenza okuguquguqukayo

Ukusetyenziswa kwesihlalo kunye ne-stem bearings kunye ne-coefficient encinci ye-friction kunye ne-self-lubricating properties inciphisa kakhulu i-torque yokusebenza yevalve. Ngoko ke, nangaphandle kokubonelela ngegrisi yokutywina, i-valve inokusebenza ngokuguquguqukayo kwaye ngokukhululekileyo ixesha elide.