Ti valve ta gede leti tolovelekeke hi ntolovelo ti kombetela eka ti valve ta gede leti pfaleriweke hi matimba. Xihloko lexi xi xopaxopa hi vuxokoxoko ku hambana exikarhi ka tivalvu ta gede leti pfaleriweke hi ku olova na tivalvu ta gede leti tolovelekeke. Loko u enerisekile hi nhlamulo, hi kombela u nyika VTON thumbs up.
Hiku olova, ti elastic soft-sealed gate valves i swipfalo exikarhi ka tinsimbi na leswinga riki tinsimbi, kufana na nylon\tetrafluoroethylene, naswona ti hard-sealed gate valves i swipfalo exikarhi ka tinsimbi na tinsimbi;
Ti valve ta gede leti pfaleriweke hi ku olova na ti valve ta gede leti pfaleriweke hi matimba swi kombetela eka switirhisiwa swo pfalela swa xitulu xa valve. Ti hard seals ti endliwa kahle hi muchini hi switirhisiwa swa xitulu xa valve kutiyisisa leswaku ku fambelana kahle na valve core (ball), hi xitalo stainless steel na copper. Soft seals swivula switirhisiwa swo pfalela leswi nghenisiweke eka xitulu xa valve tani hi switirhisiwa leswinga riki swa nsimbi. Hikuva switirhisiwa swa soft seal swina elasticity yokarhi, swilaveko swa processing accuracy swile hansi swinene kutlula ti hard seals. Hi kombetela eka swihlawulekisi swa VTON ku hlamusela ku hambana exikarhi ka tivalvu ta gede leti pfaleriweke hi ndlela yo olova leti humaka ematikweni mambe na tivalvu ta gede leti pfaleriweke hi matimba leti humaka ematikweni mambe.
1. Switirhisiwa swo pfalela
1. Switirhisiwa swo pfalela leswimbirhi swa hambanile.Tivalvu ta gede leti pfaleriweke hi ku olovahi ntolovelo ti endliwe hi rhaba kumbe polytetrafluoroethylene. Ti valve ta gede leti pfaleriweke hi matimba ti endliwe hi tinsimbi tofana na stainless steel.
2. Soft seal: Mpatswa wa seal wu endliwe hi nsimbi eka tlhelo rin’we na elastic non-metal material eka tlhelo rin’wana, leswi vuriwaka “soft seal”. Muxaka lowu wa seal wuna matirhelo ya kahle yo pfalela, kambe awu tiyiseli eka mahiselo yale henhla, ya olova ku ambala, naswona yina swivumbeko swa kahle swa michini. Xikombiso: rhaba ya nsimbi; steel tetrafluoroethylene, etc. Xikombiso, xisirhelelo xa xitulu xa elastic lexi humaka ematikweni mambegede ya valve ya VTON hi xitalo yitirhisiwa eka mahiselo yale hansi ka 100°C, naswona yitirhisiwa ngopfu eka mati ya mahiselo ya kamara.
3. Hard seal: Mpatswa wa seal wu endliwe hi swilo swa nsimbi kumbe swin’wana swo tiya eka matlhelo hamambirhi, leswi vuriwaka “hard seal”. Muxaka lowu wa seal wuna matirhelo ya kahle yo pfalela, kambe wukota ku tiya eka mahiselo yale henhla, ku onhaka naswona wuna swivumbeko swa kahle swa michini. Xikombiso: nsimbi ya nsimbi; koporo ya nsimbi; graphite ya nsimbi; nsimbi ya nsimbi leyi hlanganisiweke; (nsimbi laha yinga tlhela yiva cast iron, cast steel, alloy steel yinga tlhela yiva surfacing, sprayed alloy). Xikombiso, valve ya gede ya stainless steel leyi humaka ematikweni mambe ya VTON yinga tirhisiwa eka steam, gasi, oyili na mati, na swin’wana.
2. Thekinoloji yo aka
Ndzhawu ya mission ya indasitiri ya michini yi rharhanganile, yotala ya yona yina mahiselo yale hansi swinene na ntshikelelo wale hansi, na ku lwisana lokukulu xikan’we naku bola lokukulu ka xitirhisiwa. Sweswi thekinoloji yi antswisiwile, lerova tivalvu ta gede leti pfaleriweke hi matimba ti tlakusiwile swinene.
Vuxaka bya ku tiya exikarhi ka tinsimbi byifanele ku tekeriwa enhlokweni. Entiyisweni, valve ya gede leyi pfaleriweke hi matimba ya fana ni leyi pfaleriweke hi ku olova hikuva i xisirhelelo exikarhi ka tinsimbi. Miri wa valve wulaveka kuva wu nonoka, naswona valve plate na xitulu xa valve swifanele ku tshama swirikarhi swi gayeriwa kuva swifikeleriwa ku pfariwa. Xirhendzevutani xa vuhumelerisi bya ti valve ta gede leti pfaleriweke hi matimba xi lehe.
3. Tirhisa swiyimo
Vuyelo bya ku pfalela Ti soft seals tinga fikelela zero leakage, kasi ti hard seals tingava e henhla kumbe ehansi kuya hi swilaveko;
Ti soft seals tifanele kuva tinga ngheniwi hi ndzilo, naswona ku vupfa kuta humelela eka mahiselo yale henhla, kasi ti hard seals ati nge vupfa. Ti hard seals ta valve yo pfala hi xihatla tinga tirhisiwa ehansi ka ntshikelelo wale henhla, kasi ti soft seals ati tirhisiwi. Hi nkarhi lowu, valve ya gede leyi pfaleriweke hi matimba ya VTON ya laveka.
Swisirhelelo swo olova aswifanelanga kutirhisiwa eka switirhisiwa swokarhi leswinga bola, naswona swisirhelelo swo tiya swinga tirhisiwa;
4. Swiyimo swa ntirho
Ti hard seals tingava e henhla kumbe ehansi kuya hi swilaveko; ti soft seals tifanele kuva tinga ngheniwi hi ndzilo, naswona ti soft seals tinga fikelela ti seals tale henhla ta munhu hi xiyexe. Hikuva eka mahiselo yale hansi swinene, ti soft seals tita vupfa, kasi ti hard seals ati na xiphiqo lexi; ti hard seals hi ntolovelo tinga tiyisela ntshikelelo wale henhla swinene, kasi ti soft seals ati swikoti. Xikombiso, ti forged steel gate valves leti humaka ematikweni mambe ta VTON ti tirhisa ti hard seals, naswona ntshikelelo wunga fika eka 32Mpa kumbe 2500LB; ti soft seals ati tirhisiwi eka tindzhawu tin’wana hikokwalaho ka ku khuluka ka medium, kufana na swin’wana swa corrosive media); eku heteleleni, ti valve ta hard seal hi ntolovelo ti durha ku tlula ti soft seal. Loko ku ri ku akiwa, ku hambana exikarhi ka leswimbirhi a hi kukulu, ku hambana lokukulu i xitulu xa valve, xisirhelelo xo olova a xi na nsimbi naswona xisirhelelo xo tiya i nsimbi
V. Ku hlawuriwa ka switirhisiwa
Ku hlawuriwa ka xisirhelelo xo olova na xo tiyati valve ta gedengopfu ngopfu yi seketeriwa eka process medium, mahiselo na ntshikelelo. Hi xitalo, loko xitirhisiwa lexi xiri na swiphemuphemu leswi tiyeke kumbe xiri na ku onhaka kumbe mahiselo yale henhla kutlula 200 degrees, swikahle ku tirhisa ti hard seals. Xikombiso, steam ya mahiselo yale henhla hi xitalo yiva kwalomu ka 180-350°C, hikokwalaho hard seal gate valve yifanele ku hlawuriwa.
6. Ku hambana ka nxavo na ntsengo
Eka calibre yin’we, ntshikelelo na switirhisiwa, leswi humaka ematikweni mambe swi pfaleriwile hi matimbati valve ta gedeswi durha swinene ku tlula tivalvu ta gede leti pfaleriweke hi ndlela yo olova leti humaka ematikweni mambe; xikombiso, valve ya gede ya nsimbi leyi hoxiweke ya DN100 leyi humaka ematikweni mambe yi durha hi 40% ku tlula valve ya gede ya nsimbi leyi hoxiweke leyi pfaleriweke hi ndlela yo olova ya DN100 leyi humaka ematikweni mambe; loko havumbirhi bya ti valve ta gede leti pfaleriweke hi matimba na ti valve ta gede leti pfaleriweke hi ku olova ti nga tirhisiwa ehansi ka swiyimo swa ntirho, loko u tekela enhlokweni ntsengo, ringeta ku hlawula ti valve ta gede leti pfaleriweke hi ku olova leti humaka ematikweni mambe.
7. Ku hambana ka vutomi bya ntirho
Soft seal swivula leswaku tlhelo rin’we ra seal pair ri endliwe hi nchumu lowu nga na ku tiya ka le hansi swinene. Hiku angarhela, xitulu xa soft seal xi endliwe hi switirhisiwa leswinga riki swa nsimbi leswingana matimba yokarhi, ku tiya xikan’we naku tiya ka mahiselo. Yina matirhelo ya kahle yo pfalela naswona yinga fikelela zero leakage, kambe vutomi bya yona xikan’we naku cinca cinca eka mahiselo aswi kahle ngopfu. Ti hard seals ti endliwe hi nsimbi naswona tina matirhelo ya kahle yo pfalela, hambi leswi vaendli van’wana va vulaka leswaku tinga fikelela zero leakage.
Vuyelo bya ti soft seals i matirhelo ya kahle ya sealing, naswona ku pfumaleka ka yona i ku olova ku dyuhala, ku onhaka, na vutomi byo koma bya ntirho. Ti hard seals tina vutomi byo leha bya ntirho, kambe matirhelo ya tona yo pfalela aya kahle swinene loko ku pimanyisiwa na ti soft seals. Tinxaka leti timbirhi ta swilemo ti nga fambisana. Hi mayelana na ku pfariwa, ti soft seals ta antswa swinene, kambe sweswi ku pfariwa ka ti hard seals na kona kunga fikelela swilaveko leswi fambelanaka.
Swisirhelelo swo olova a swi nge swi koti ku fikelela swilaveko swa endlelo eka swilo swin’wana leswi onhaka, kambe swisirhelelo swo tiya swi nga tlhantlha xiphiqo lexi!
Tinxaka leti timbirhi ta swilemo ti nga fambisana. Hi tlhelo ra ku pfariwa, swisirhelelo swo olova swa antswa swinene, kambe sweswi ku pfariwa ka swisirhelelo swo tiya na swona swi nga fikelela swilaveko leswi fambelanaka!
Vuyelo bya ti soft seals i matirhelo ya kahle ya sealing, naswona ku pfumaleka ka yona i ku olova ku dyuhala, ku onhaka, na vutomi byo koma bya ntirho.
Ti hard seals tina vutomi byo leha bya ntirho, kambe ku pfariwa ka yona ku bihe ngopfu kutlula ti soft seals.
Nkarhi wa poso: Dec-14-2024
