Valve Gasket Ntirho & Nkongomiso wa Xitirhisiwa

Ti valve gaskets ti endleriwe ku sivela ku vupfa loku vangiwaka hi ntshikelelo, ku bola, na ku andzisiwa/ku hunguteka ka mahiselo exikarhi ka swiphemu. Loko kwalomu ka hinkwaswo swi ri na flangedku hlanganisiwa' .s ti valve ti lava ti gaskets, ku tirhisiwa ka tona ko karhi na nkoka wa tona swa hambana kuya hi muxaka wa valve na dizayini. Eka xiyenge lexi, .TWSyi ta hlamusela swiyimo swa ku vekiwa ka tivalvu na ku hlawuriwa ka switirhisiwa swa gasket.

I. Ku tirhisiwa ko sungula ka ti gasket i eka flange joint ya swihlanganisi swa valve.

Valve ya matirhiselo lama tolovelekeke swinene

1. Valve ya Gede
2. Valve ya Globe
3. Valve ya phaphatani(ngopfu-ngopfu valve ya phaphatani ya flanged ya concentric na double eccentric)
4. Ku kambela valve

Eka ti valve leti, gasket ayi tirhisiwi eka ku lawula ku khuluka kumbe ku pfalela endzeni ka valve hi yoxe, kambe yi vekiwa exikarhi ka ti flanges timbirhi (exikarhi ka flange ya valve hi yoxe na flange ya phayiphi). Hiku tiyisisa ti bolts, matimba lawa ya ringaneleke ya clamping ya endliwa kuva ku endliwa static seal, leswi sivelaka ku vupfa ka medium eka vuhlanganisi. Ntirho wa yona iku tata swivandla leswintsongo leswinga ringaniki exikarhi ka swiphemu swimbirhi swa metal flange, ku tiyisisa ku pfariwa ka 100% eka vuhlanganisi.

II.Ku tirhisiwa ka Gasket eka Valve “Xifunengeto xa Valve” .

Ti valve totala ti endliwe hi mimiri ya ti valve yohambana na swifunengeto kuva swi olova ku hlayisiwa endzeni (xikombiso, ku cinca switulu swa ti valve, ti disc valves, kumbe ku basisa swilo leswinga sala), leswi endzhaku swi hlanganisiwaka hi ti boluti. Gasket na yona ya laveka eka vuhlanganisi lebyi ku tiyisisa ku pfariwa loku tiyeke.

1. Ku hlanganisiwa exikarhi ka xifunengeto xa valve na miri wa valve ya valve ya gede na valve ya globe hi ntolovelo swilava kutirhisiwa ka gasket kumbe O-ring.
2. Gasket eka xiyimo lexi yitlhela yitirha tani hi static seal kuva yi sivela medium kuva yi khulukela kusuka eka miri wa valve kuya exibakabakeni.

III. Gasket yo hlawuleka ya tinxaka to karhi ta tivalvu

Ti valve tin’wana ti katsa gasket tani hi xiphemu xa core sealing assembly ya tona, leyi endleriweke ku hlanganisiwa endzeni ka xivumbeko xa valve.

1. Valve ya phaphatani-gasket ya xitulu xa valve

• Xitulu xa valve ya phaphatani entiyisweni i ring gasket, leyi tshikileriwaka eka rirhangu ra le ndzeni ra miri wa valve kutani yi vekiwa ku rhendzela disc ya phaphatani.
• Loko phaphatanidiscyi pfala, yi tshikilela gasket ya xitulu xa valve leswaku yi endla xisirhelelo lexi cinca-cincaka (tanihi phaphatanidiscku rhendzeleka).
• Nchumu lowu hi ntolovelo i rhaba (xikombiso, EPDM, NBR, Viton) kumbe PTFE, leyi endleriweke ku amukela swihangalasamahungu swohambana hambana na swiyimo swa mahiselo.

2. Valve ya Bolo-Gasket ya Xitulu xa Valve

• Xitulu xa valve xa valve ya bolo na xona i muxaka wa gasket, hi ntolovelo yi endliwa kusuka eka switirhisiwa swofana na PTFE (polytetrafluoroethylene), PEEK (polyetheretherketone), kumbe tipulasitiki leti tiyisisiweke.
• Yinyika xisirhelelo exikarhi ka bolo na miri wa valve, yitirha tani hi static seal (loko yiringanisiwa na miri wa valve) xikan’we na dynamic seal (loko yiringanisiwa na bolo leyi rhendzelekaka).

IV. Hi tihi ti valve leti hi ntolovelo ti nga tirhisiwiki na ti gasket?

1. Ti valve leti weldiweke: Miri wa valve wu welderiwa hiku kongoma eka phayiphi, leswinga herisaka xilaveko xa ti flanges nati gaskets.
2. Ti valve letingana swihlanganisi swa threaded: Hi ntolovelo ti tirhisa threaded sealing (kufana na raw material tape kumbe sealant), hi xitalo swi herisa xilaveko xa ti gaskets.
3. Ti valve ta monolithic: Ti valve tokarhi ta bolo ta ntsengo wale hansi kumbe ti valve to hlawuleka tina miri wa valve lowu hlanganisiweke lowu nga hambanisiwaka, xisweswo ti pfumala gasket yo funengeta ti valve.
4. Ti valve letingana ti O-rings kumbe ti gaskets leti phutseriweke hi nsimbi: Eka switirhisiwa swa ntshikelelo wale henhla, mahiselo yale henhla, kumbe special-medium, swintshuxo swa xiyimo xale henhla swo pfalela swinga siva ti gaskets leti tolovelekeke letinga riki ta nsimbi.

V. Nkatsakanyo: .

Valve gasket i muxaka wa general cutting key sealing element, yi tirhisiwa ngopfu eka ku hlanganisiwa ka tiphayiphi ta ti flange valve to hambana hambana, naswona yitlhela yitirhisiwa eka ku pfariwa ka valve cover ya ti valve totala. Eka ku hlawuriwa, swa laveka ku hlawula switirhisiwa swa gasket leswi faneleke na xivumbeko kuya hi muxaka wa valve, ndlela yo hlanganisa, xikarhi, mahiselo na ntshikelelo.