I-Valve Gasket Function & Application Guide

Ama-valve gaskets aklanyelwe ukuvimbela ukuvuza okubangelwa ingcindezi, ukugqwala, nokwanda/ukufinyela okushisayo phakathi kwezingxenye. Nakuba cishe zonke flangeduxhumano's ama-valve adinga ama-gaskets, ukusetshenziswa kwawo okuqondile nokubaluleka kuyahlukahluka ngohlobo lwe-valve nokuklama. Kulesi sigaba,I-TWSizochaza izikhundla zokufakwa kwe-valve kanye nokukhetha impahla ye-gasket.

I. Ukusetshenziswa okuyinhloko kwama-gaskets kusejoyini ye-flange yokuxhunywa kwamavalvu.

I-valve esetshenziswa kakhulu

1. Ivalve yesango
2. I-Globe Valve
3. Butterfly valve(ikakhulukazi i-valve uvemvane ene-concentric kanye ne-double eccentric flanged)
4. Hlola i-valve

Kulawa ma-valve, i-gasket ayisetshenziselwa ukulawula ukugeleza noma ukufaka uphawu ngaphakathi kwe-valve ngokwayo, kodwa ifakwe phakathi kwama-flange amabili (phakathi kwe-flange ye-valve ngokwayo kanye ne-pipe flange). Ngokuqinisa amabhawodi, amandla anele okubamba ayakhiqizwa ukuze kwakheke uphawu olungaguquki, ukuvimbela ukuvuza kwendawo ekuxhumekeni. Umsebenzi wayo ukugcwalisa izikhala ezincane ezingalingani phakathi kwezindawo ezimbili ze-metal flange, ukuqinisekisa ukuvala okungu-100% ekuxhumekeni.

II.Ukusetshenziswa kwe-Gasket ku-Valve "I-Valve Cover"

Amavalvu amaningi aklanywe anemizimba ehlukene yamavalvu kanye namakhava ukuze kube lula ukunakekelwa kwangaphakathi (isb, ukushintsha izihlalo zamavalvu, ama-disc valves, noma imfucumfucu yokususa), abe eseboshelwa ndawonye. I-gasket nayo iyadingeka kulokhu kuxhumana ukuze kuqinisekiswe uphawu oluqinile.

1. Ukuxhumana phakathi kwesembozo se-valve kanye nomzimba we-valve we-valve yesango kanye ne-valve yembulunga ngokuvamile kudinga ukusetshenziswa kwe-gasket noma i-O-ring.
2. I-gasket kule ndawo iphinde isebenze njengesivalo esimile ukuvimbela okuphakathi ukuthi kungavuzi emzimbeni we-valve kuye emkhathini.

III. I-gasket ekhethekile yezinhlobo ezithile zama-valve

Amanye ama-valve ahlanganisa i-gasket njengengxenye yomhlangano wawo wokuvala umnyombo, oklanyelwe ukuhlanganiswa ngaphakathi kwesakhiwo se-valve.

1. Butterfly valve-isihlalo se-valve gasket

• Isihlalo se-butterfly valve empeleni siyi-gasket eyindandatho, ecindezelwa odongeni lwangaphakathi lomzimba we-valve noma efakwe eduze kwe-butterfly disc.
• Lapho uvemvaneidiskiivala, icindezela isihlalo se-valve gasket ukwenza uphawu oluguqukayo (njengovemvaneidiskizungeza).
• Izinto ezisetshenziswayo ngokuvamile ziyirabha (isb, i-EPDM, i-NBR, i-Viton) noma i-PTFE, eklanyelwe ukuthwala imidiya ehlukahlukene nezimo zokushisa.

2. I-Ball Valve-Valve Seat Gasket

• Isihlalo se-valve se-valve yebhola siwuhlobo lwe-gasket, ngokuvamile eyenziwe ngezinto ezifana ne-PTFE (i-polytetrafluoroethylene), i-PEEK (i-polyetheretherketone), noma amapulasitiki aqinisiwe.
• Ihlinzeka ngophawu phakathi kwebhola nomzimba wevalvu, isebenza kokubili njengesigxivizo esimile (okuhlobene nomzimba wevalvu) kanye nophawu oluguquguqukayo (okuhlobene nebhola elizungezayo).

IV. Imaphi ama-valve ngokuvamile angasetshenziswa nama-gaskets?

1. Ama-valve ashiselwe: Umzimba we-valve ushiselwe ngokuqondile epayipini, okuqeda isidingo sama-flange nama-gaskets.
2. Amavalvu anoxhumo olunentambo: Ngokuvamile asebenzisa ukuvala okunentambo (okufana netheyiphu yempahla eluhlaza noma okokufaka uphawu), ngokuvamile asusa isidingo samagaskhi.
3. Amavalvu e-Monolithic: Amavalvu athile amabhola ashibhile noma amavalvu akhethekile afaka umzimba wamavalvu obalulekile ongakwazi ukuhlakazwa, ngaleyo ndlela untula i-gasket yekhava yevalvu.
4. Amavalvu anezindandatho ze-O noma ama-gaskets ahlanganiswe ngensimbi: Ezinsizeni ezinomfutho ophezulu, izinga lokushisa eliphezulu, noma eliphakathi nendawo, izixazululo zokuvala ezithuthukisiwe zingathatha indawo yama-gaskets angewona awensimbi.

V. Isifinyezo:

I-valve gasket iwuhlobo lwesici esijwayelekile sokusika ukhiye wokuvala, isetshenziswa kabanzi ekuxhumekeni kwepayipi lama-valve ahlukahlukene e-flange, futhi isetshenziswa nasekuvaleni kwekhava yamavalvu amaningi. Ekukhetheni, kuyadingeka ukukhetha izinto ezifanele ze-gasket futhi wenze ngokuvumelana nohlobo lwe-valve, imodi yokuxhuma, okuphakathi, izinga lokushisa nokucindezela.